diff --git a/Makefile.am b/Makefile.am
index 0af4152d..f339a133 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -2,7 +2,7 @@ ACLOCAL_AMFLAGS = -I m4
 
 METASOURCES = AUTO
 
-SUBDIRS = libsrc ng tutorials 
+SUBDIRS = libsrc ng nglib tutorials 
 
 
 
diff --git a/Makefile.in b/Makefile.in
index 9608265a..4ea96aa8 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -230,7 +230,7 @@ top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
 ACLOCAL_AMFLAGS = -I m4
 METASOURCES = AUTO
-SUBDIRS = libsrc ng tutorials 
+SUBDIRS = libsrc ng nglib tutorials 
 all: config.h
 	$(MAKE) $(AM_MAKEFLAGS) all-recursive
 
diff --git a/configure b/configure
index 09134843..19a4259d 100755
--- a/configure
+++ b/configure
@@ -789,6 +789,8 @@ LIBOBJS
 TOGLLIBDIR
 OCCLIBS
 OCCFLAGS
+NGLIB_FALSE
+NGLIB_TRUE
 CXXCPP
 CPP
 OTOOL64
@@ -797,6 +799,7 @@ LIPO
 NMEDIT
 DSYMUTIL
 lt_ECHO
+RANLIB
 AR
 OBJDUMP
 LN_S
@@ -823,7 +826,6 @@ build_vendor
 build_cpu
 build
 LIBTOOL
-RANLIB
 am__fastdepCXX_FALSE
 am__fastdepCXX_TRUE
 CXXDEPMODE
@@ -945,9 +947,10 @@ with_tclinclude
 enable_occ
 with_occ
 with_togl
+enable_nglib
+enable_static
 enable_dependency_tracking
 enable_shared
-enable_static
 with_pic
 enable_fast_install
 with_gnu_ld
@@ -1597,10 +1600,11 @@ Optional Features:
   --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
   --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
   --enable-occ            compile with OpenCascade geometry kernel
+  --enable-nglib          generate shared library nglib
+  --enable-static[=PKGS]  build static libraries [default=no]
   --disable-dependency-tracking  speeds up one-time build
   --enable-dependency-tracking   do not reject slow dependency extractors
   --enable-shared[=PKGS]  build shared libraries [default=yes]
-  --enable-static[=PKGS]  build static libraries [default=yes]
   --enable-fast-install[=PKGS]
                           optimize for fast installation [default=yes]
   --disable-libtool-lock  avoid locking (might break parallel builds)
@@ -2574,6 +2578,8 @@ am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'
 
 
 
+# Tcl/Tk configuration:
+
 
     # TEA extensions pass this us the version of TEA they think they
     # are compatible with.
@@ -3210,15 +3216,6 @@ $as_echo "${ac_cv_c_tclh}" >&6; }
 
 
 
-# TEA_PATH_TOGLCONFIG
-# TEA_LOAD_TOGLCONFIG
-
-# TEA_PATH_TIXCONFIG
-# TEA_LOAD_TIXCONFIG
-
-# TEA_PREFIX
-# TEA_SETUP_COMPILER
-
 
 # Check whether --enable-occ was given.
 if test "${enable_occ+set}" = set; then
@@ -3240,6 +3237,7 @@ fi
 
 
 
+
 # Check whether --with-togl was given.
 if test "${with_togl+set}" = set; then
   withval=$with_togl; togldir=$withval
@@ -3251,11 +3249,52 @@ fi
 
 
 
+# Check whether --enable-nglib was given.
+if test "${enable_nglib+set}" = set; then
+  enableval=$enable_nglib;  nglibon=true
+else
+   nglibon=false
+fi
+
+
+
 
 # AC_HEADER_STDC
 ac_config_headers="$ac_config_headers config.h"
 
 
+# Check whether --enable-static was given.
+if test "${enable_static+set}" = set; then
+  enableval=$enable_static; p=${PACKAGE-default}
+    case $enableval in
+    yes) enable_static=yes ;;
+    no) enable_static=no ;;
+    *)
+     enable_static=no
+      # Look at the argument we got.  We use all the common list separators.
+      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
+      for pkg in $enableval; do
+	IFS="$lt_save_ifs"
+	if test "X$pkg" = "X$p"; then
+	  enable_static=yes
+	fi
+      done
+      IFS="$lt_save_ifs"
+      ;;
+    esac
+else
+  enable_static=no
+fi
+
+
+
+
+
+
+
+
+
+
 ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
 ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
@@ -4054,98 +4093,6 @@ else
 fi
 
 
-if test -n "$ac_tool_prefix"; then
-  # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
-set dummy ${ac_tool_prefix}ranlib; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_RANLIB+set}" = set; then
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$RANLIB"; then
-  ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
-    ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-done
-IFS=$as_save_IFS
-
-fi
-fi
-RANLIB=$ac_cv_prog_RANLIB
-if test -n "$RANLIB"; then
-  { $as_echo "$as_me:$LINENO: result: $RANLIB" >&5
-$as_echo "$RANLIB" >&6; }
-else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-
-fi
-if test -z "$ac_cv_prog_RANLIB"; then
-  ac_ct_RANLIB=$RANLIB
-  # Extract the first word of "ranlib", so it can be a program name with args.
-set dummy ranlib; ac_word=$2
-{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
-$as_echo_n "checking for $ac_word... " >&6; }
-if test "${ac_cv_prog_ac_ct_RANLIB+set}" = set; then
-  $as_echo_n "(cached) " >&6
-else
-  if test -n "$ac_ct_RANLIB"; then
-  ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test.
-else
-as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
-for as_dir in $PATH
-do
-  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
-  for ac_exec_ext in '' $ac_executable_extensions; do
-  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
-    ac_cv_prog_ac_ct_RANLIB="ranlib"
-    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
-    break 2
-  fi
-done
-done
-IFS=$as_save_IFS
-
-fi
-fi
-ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
-if test -n "$ac_ct_RANLIB"; then
-  { $as_echo "$as_me:$LINENO: result: $ac_ct_RANLIB" >&5
-$as_echo "$ac_ct_RANLIB" >&6; }
-else
-  { $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
-fi
-
-  if test "x$ac_ct_RANLIB" = x; then
-    RANLIB=":"
-  else
-    case $cross_compiling:$ac_tool_warned in
-yes:)
-{ $as_echo "$as_me:$LINENO: WARNING: using cross tools not prefixed with host triplet" >&5
-$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
-ac_tool_warned=yes ;;
-esac
-    RANLIB=$ac_ct_RANLIB
-  fi
-else
-  RANLIB="$ac_cv_prog_RANLIB"
-fi
-
 case `pwd` in
   *\ * | *\	*)
     { $as_echo "$as_me:$LINENO: WARNING: Libtool does not cope well with whitespace in \`pwd\`" >&5
@@ -5639,13 +5586,13 @@ if test "${lt_cv_nm_interface+set}" = set; then
 else
   lt_cv_nm_interface="BSD nm"
   echo "int some_variable = 0;" > conftest.$ac_ext
-  (eval echo "\"\$as_me:5642: $ac_compile\"" >&5)
+  (eval echo "\"\$as_me:5589: $ac_compile\"" >&5)
   (eval "$ac_compile" 2>conftest.err)
   cat conftest.err >&5
-  (eval echo "\"\$as_me:5645: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
+  (eval echo "\"\$as_me:5592: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
   (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
   cat conftest.err >&5
-  (eval echo "\"\$as_me:5648: output\"" >&5)
+  (eval echo "\"\$as_me:5595: output\"" >&5)
   cat conftest.out >&5
   if $GREP 'External.*some_variable' conftest.out > /dev/null; then
     lt_cv_nm_interface="MS dumpbin"
@@ -6851,7 +6798,7 @@ ia64-*-hpux*)
   ;;
 *-*-irix6*)
   # Find out which ABI we are using.
-  echo '#line 6854 "configure"' > conftest.$ac_ext
+  echo '#line 6801 "configure"' > conftest.$ac_ext
   if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
@@ -8968,36 +8915,6 @@ fi
 
 
 
-  # Check whether --enable-static was given.
-if test "${enable_static+set}" = set; then
-  enableval=$enable_static; p=${PACKAGE-default}
-    case $enableval in
-    yes) enable_static=yes ;;
-    no) enable_static=no ;;
-    *)
-     enable_static=no
-      # Look at the argument we got.  We use all the common list separators.
-      lt_save_ifs="$IFS"; IFS="${IFS}$PATH_SEPARATOR,"
-      for pkg in $enableval; do
-	IFS="$lt_save_ifs"
-	if test "X$pkg" = "X$p"; then
-	  enable_static=yes
-	fi
-      done
-      IFS="$lt_save_ifs"
-      ;;
-    esac
-else
-  enable_static=yes
-fi
-
-
-
-
-
-
-
-
 
 
 # Check whether --with-pic was given.
@@ -9427,11 +9344,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:9430: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:9347: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:9434: \$? = $ac_status" >&5
+   echo "$as_me:9351: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -9766,11 +9683,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:9769: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:9686: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:9773: \$? = $ac_status" >&5
+   echo "$as_me:9690: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -9871,11 +9788,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:9874: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:9791: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:9878: \$? = $ac_status" >&5
+   echo "$as_me:9795: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -9926,11 +9843,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:9929: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:9846: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:9933: \$? = $ac_status" >&5
+   echo "$as_me:9850: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -12726,7 +12643,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 12729 "configure"
+#line 12646 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -12822,7 +12739,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<_LT_EOF
-#line 12825 "configure"
+#line 12742 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
@@ -14842,11 +14759,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:14845: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:14762: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>conftest.err)
    ac_status=$?
    cat conftest.err >&5
-   echo "$as_me:14849: \$? = $ac_status" >&5
+   echo "$as_me:14766: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s "$ac_outfile"; then
      # The compiler can only warn and ignore the option if not recognized
      # So say no if there are warnings other than the usual output.
@@ -14941,11 +14858,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:14944: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:14861: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:14948: \$? = $ac_status" >&5
+   echo "$as_me:14865: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -14993,11 +14910,11 @@ else
    -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
    -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
    -e 's:$: $lt_compiler_flag:'`
-   (eval echo "\"\$as_me:14996: $lt_compile\"" >&5)
+   (eval echo "\"\$as_me:14913: $lt_compile\"" >&5)
    (eval "$lt_compile" 2>out/conftest.err)
    ac_status=$?
    cat out/conftest.err >&5
-   echo "$as_me:15000: \$? = $ac_status" >&5
+   echo "$as_me:14917: \$? = $ac_status" >&5
    if (exit $ac_status) && test -s out/conftest2.$ac_objext
    then
      # The compiler can only warn and ignore the option if not recognized
@@ -15977,9 +15894,110 @@ ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
 # Only expand once:
 
 
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ranlib; ac_word=$2
+{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if test "${ac_cv_prog_RANLIB+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$RANLIB"; then
+  ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
+    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+IFS=$as_save_IFS
+
+fi
+fi
+RANLIB=$ac_cv_prog_RANLIB
+if test -n "$RANLIB"; then
+  { $as_echo "$as_me:$LINENO: result: $RANLIB" >&5
+$as_echo "$RANLIB" >&6; }
+else
+  { $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_RANLIB"; then
+  ac_ct_RANLIB=$RANLIB
+  # Extract the first word of "ranlib", so it can be a program name with args.
+set dummy ranlib; ac_word=$2
+{ $as_echo "$as_me:$LINENO: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if test "${ac_cv_prog_ac_ct_RANLIB+set}" = set; then
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_RANLIB"; then
+  ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_prog_ac_ct_RANLIB="ranlib"
+    $as_echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
+if test -n "$ac_ct_RANLIB"; then
+  { $as_echo "$as_me:$LINENO: result: $ac_ct_RANLIB" >&5
+$as_echo "$ac_ct_RANLIB" >&6; }
+else
+  { $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_RANLIB" = x; then
+    RANLIB=":"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:$LINENO: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    RANLIB=$ac_ct_RANLIB
+  fi
+else
+  RANLIB="$ac_cv_prog_RANLIB"
+fi
+
+
 
 
 # AM_CONDITIONAL([OCC], [test x$occon = xtrue])
+ if test x$nglibon = xtrue; then
+  NGLIB_TRUE=
+  NGLIB_FALSE='#'
+else
+  NGLIB_TRUE='#'
+  NGLIB_FALSE=
+fi
+
 
 # AC_SUBST([OCCFLAGS], [$occfl])
 OCCFLAGS="$occfl $occincfl"
@@ -17313,7 +17331,7 @@ done
 
 
 
-ac_config_files="$ac_config_files Makefile libsrc/Makefile libsrc/csg/Makefile libsrc/general/Makefile libsrc/geom2d/Makefile libsrc/gprim/Makefile libsrc/include/Makefile libsrc/interface/Makefile libsrc/linalg/Makefile libsrc/meshing/Makefile libsrc/occ/Makefile libsrc/opti/Makefile libsrc/parallel/Makefile libsrc/stlgeom/Makefile libsrc/visualization/Makefile ng/Makefile tutorials/Makefile"
+ac_config_files="$ac_config_files Makefile libsrc/Makefile libsrc/csg/Makefile libsrc/general/Makefile libsrc/geom2d/Makefile libsrc/gprim/Makefile libsrc/include/Makefile libsrc/interface/Makefile libsrc/linalg/Makefile libsrc/meshing/Makefile libsrc/occ/Makefile libsrc/opti/Makefile libsrc/parallel/Makefile libsrc/stlgeom/Makefile libsrc/visualization/Makefile ng/Makefile nglib/Makefile tutorials/Makefile"
 
 
 cat >confcache <<\_ACEOF
@@ -17441,6 +17459,13 @@ $as_echo "$as_me: error: conditional \"am__fastdepCXX\" was never defined.
 Usually this means the macro was only invoked conditionally." >&2;}
    { (exit 1); exit 1; }; }
 fi
+if test -z "${NGLIB_TRUE}" && test -z "${NGLIB_FALSE}"; then
+  { { $as_echo "$as_me:$LINENO: error: conditional \"NGLIB\" was never defined.
+Usually this means the macro was only invoked conditionally." >&5
+$as_echo "$as_me: error: conditional \"NGLIB\" was never defined.
+Usually this means the macro was only invoked conditionally." >&2;}
+   { (exit 1); exit 1; }; }
+fi
 
 : ${CONFIG_STATUS=./config.status}
 ac_write_fail=0
@@ -17949,10 +17974,10 @@ AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"
 sed_quote_subst='$sed_quote_subst'
 double_quote_subst='$double_quote_subst'
 delay_variable_subst='$delay_variable_subst'
+enable_static='`$ECHO "X$enable_static" | $Xsed -e "$delay_single_quote_subst"`'
 macro_version='`$ECHO "X$macro_version" | $Xsed -e "$delay_single_quote_subst"`'
 macro_revision='`$ECHO "X$macro_revision" | $Xsed -e "$delay_single_quote_subst"`'
 enable_shared='`$ECHO "X$enable_shared" | $Xsed -e "$delay_single_quote_subst"`'
-enable_static='`$ECHO "X$enable_static" | $Xsed -e "$delay_single_quote_subst"`'
 pic_mode='`$ECHO "X$pic_mode" | $Xsed -e "$delay_single_quote_subst"`'
 enable_fast_install='`$ECHO "X$enable_fast_install" | $Xsed -e "$delay_single_quote_subst"`'
 host_alias='`$ECHO "X$host_alias" | $Xsed -e "$delay_single_quote_subst"`'
@@ -18319,6 +18344,7 @@ do
     "libsrc/stlgeom/Makefile") CONFIG_FILES="$CONFIG_FILES libsrc/stlgeom/Makefile" ;;
     "libsrc/visualization/Makefile") CONFIG_FILES="$CONFIG_FILES libsrc/visualization/Makefile" ;;
     "ng/Makefile") CONFIG_FILES="$CONFIG_FILES ng/Makefile" ;;
+    "nglib/Makefile") CONFIG_FILES="$CONFIG_FILES nglib/Makefile" ;;
     "tutorials/Makefile") CONFIG_FILES="$CONFIG_FILES tutorials/Makefile" ;;
 
   *) { { $as_echo "$as_me:$LINENO: error: invalid argument: $ac_config_target" >&5
@@ -19151,6 +19177,9 @@ available_tags="CXX "
 
 # ### BEGIN LIBTOOL CONFIG
 
+# Whether or not to build static libraries.
+build_old_libs=$enable_static
+
 # Which release of libtool.m4 was used?
 macro_version=$macro_version
 macro_revision=$macro_revision
@@ -19158,9 +19187,6 @@ macro_revision=$macro_revision
 # Whether or not to build shared libraries.
 build_libtool_libs=$enable_shared
 
-# Whether or not to build static libraries.
-build_old_libs=$enable_static
-
 # What type of objects to build.
 pic_mode=$pic_mode
 
diff --git a/configure.ac b/configure.ac
index 071a7605..66a5e52f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -6,6 +6,8 @@ AC_CONFIG_MACRO_DIR([m4])
 AC_PREFIX_DEFAULT(["/opt/netgen"])
 
 
+# Tcl/Tk configuration:
+
 TEA_INIT([3.6])
 
 TEA_PATH_TCLCONFIG
@@ -18,15 +20,6 @@ TEA_PUBLIC_TCL_HEADERS
 
 
 
-# TEA_PATH_TOGLCONFIG
-# TEA_LOAD_TOGLCONFIG 
-
-# TEA_PATH_TIXCONFIG
-# TEA_LOAD_TIXCONFIG 
-
-# TEA_PREFIX
-# TEA_SETUP_COMPILER
-
 
 AC_ARG_ENABLE([occ], 
         [  --enable-occ            compile with OpenCascade geometry kernel],
@@ -42,6 +35,7 @@ AC_ARG_WITH([occ],
         [occlibfl="-L$withval/lib"],
         )
 
+
 AC_ARG_WITH([togl], 
         [  --with-togl=dir         directory containing libTogl1.7],
         [togldir=$withval]
@@ -50,17 +44,27 @@ AC_ARG_WITH([togl],
         )
 
 
+AC_ARG_ENABLE([nglib],
+        [  --enable-nglib          generate shared library nglib],
+        [ nglibon=true ],
+        [ nglibon=false ])
+
+
 
 # AC_HEADER_STDC
 AC_CONFIG_HEADERS(config.h)
 
+AC_DISABLE_STATIC
+
 AC_LANG([C++])
 AC_PROG_CXX
+AC_PROG_LIBTOOL
 AC_PROG_RANLIB
 LT_INIT
 
 
 # AM_CONDITIONAL([OCC], [test x$occon = xtrue])
+AM_CONDITIONAL([NGLIB], [test x$nglibon = xtrue])
 
 # AC_SUBST([OCCFLAGS], [$occfl])
 AC_SUBST([OCCFLAGS], ["$occfl $occincfl"])
@@ -91,10 +95,12 @@ AC_CHECK_HEADERS([limits.h])
 AC_CHECK_FUNCS([minabc])
 
 
-AC_CONFIG_FILES(Makefile libsrc/Makefile libsrc/csg/Makefile libsrc/general/Makefile \
-libsrc/geom2d/Makefile libsrc/gprim/Makefile libsrc/include/Makefile libsrc/interface/Makefile \
-libsrc/linalg/Makefile libsrc/meshing/Makefile libsrc/occ/Makefile libsrc/opti/Makefile \
-libsrc/parallel/Makefile libsrc/stlgeom/Makefile libsrc/visualization/Makefile ng/Makefile \
-tutorials/Makefile)
+AC_CONFIG_FILES(Makefile libsrc/Makefile libsrc/csg/Makefile 
+libsrc/general/Makefile  libsrc/geom2d/Makefile libsrc/gprim/Makefile
+libsrc/include/Makefile libsrc/interface/Makefile 
+libsrc/linalg/Makefile libsrc/meshing/Makefile libsrc/occ/Makefile 
+libsrc/opti/Makefile  libsrc/parallel/Makefile 
+libsrc/stlgeom/Makefile libsrc/visualization/Makefile ng/Makefile 
+nglib/Makefile tutorials/Makefile)
 
 AC_OUTPUT
diff --git a/libsrc/csg/Makefile.am b/libsrc/csg/Makefile.am
index 2bdc3372..ff0b3f3c 100644
--- a/libsrc/csg/Makefile.am
+++ b/libsrc/csg/Makefile.am
@@ -7,8 +7,8 @@ revolution.hpp spline3d.hpp
 
 AM_CPPFLAGS = -I$(top_srcdir)/libsrc/include
 METASOURCES = AUTO
-noinst_LIBRARIES = libcsg.a 
-libcsg_a_SOURCES = algprim.cpp brick.cpp   \
+noinst_LTLIBRARIES = libcsg.la 
+libcsg_la_SOURCES = algprim.cpp brick.cpp   \
 bspline2d.cpp csgeom.cpp csgparser.cpp curve2d.cpp edgeflw.cpp	       \
 explicitcurve2d.cpp extrusion.cpp gencyl.cpp genmesh.cpp identify.cpp  \
 manifold.cpp meshsurf.cpp polyhedra.cpp revolution.cpp singularref.cpp \
diff --git a/libsrc/csg/Makefile.in b/libsrc/csg/Makefile.in
index cb7be4a0..eb5cd6f2 100644
--- a/libsrc/csg/Makefile.in
+++ b/libsrc/csg/Makefile.in
@@ -46,19 +46,14 @@ am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
 CONFIG_HEADER = $(top_builddir)/config.h
 CONFIG_CLEAN_FILES =
-LIBRARIES = $(noinst_LIBRARIES)
-ARFLAGS = cru
-libcsg_a_AR = $(AR) $(ARFLAGS)
-libcsg_a_LIBADD =
-am_libcsg_a_OBJECTS = algprim.$(OBJEXT) brick.$(OBJEXT) \
-	bspline2d.$(OBJEXT) csgeom.$(OBJEXT) csgparser.$(OBJEXT) \
-	curve2d.$(OBJEXT) edgeflw.$(OBJEXT) explicitcurve2d.$(OBJEXT) \
-	extrusion.$(OBJEXT) gencyl.$(OBJEXT) genmesh.$(OBJEXT) \
-	identify.$(OBJEXT) manifold.$(OBJEXT) meshsurf.$(OBJEXT) \
-	polyhedra.$(OBJEXT) revolution.$(OBJEXT) singularref.$(OBJEXT) \
-	solid.$(OBJEXT) specpoin.$(OBJEXT) spline3d.$(OBJEXT) \
-	surface.$(OBJEXT) triapprox.$(OBJEXT)
-libcsg_a_OBJECTS = $(am_libcsg_a_OBJECTS)
+LTLIBRARIES = $(noinst_LTLIBRARIES)
+libcsg_la_LIBADD =
+am_libcsg_la_OBJECTS = algprim.lo brick.lo bspline2d.lo csgeom.lo \
+	csgparser.lo curve2d.lo edgeflw.lo explicitcurve2d.lo \
+	extrusion.lo gencyl.lo genmesh.lo identify.lo manifold.lo \
+	meshsurf.lo polyhedra.lo revolution.lo singularref.lo solid.lo \
+	specpoin.lo spline3d.lo surface.lo triapprox.lo
+libcsg_la_OBJECTS = $(am_libcsg_la_OBJECTS)
 DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
 depcomp = $(SHELL) $(top_srcdir)/depcomp
 am__depfiles_maybe = depfiles
@@ -71,8 +66,8 @@ CXXLD = $(CXX)
 CXXLINK = $(LIBTOOL) --tag=CXX $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
 	--mode=link $(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) \
 	$(LDFLAGS) -o $@
-SOURCES = $(libcsg_a_SOURCES)
-DIST_SOURCES = $(libcsg_a_SOURCES)
+SOURCES = $(libcsg_la_SOURCES)
+DIST_SOURCES = $(libcsg_la_SOURCES)
 HEADERS = $(noinst_HEADERS)
 ETAGS = etags
 CTAGS = ctags
@@ -239,8 +234,8 @@ revolution.hpp spline3d.hpp
 
 AM_CPPFLAGS = -I$(top_srcdir)/libsrc/include
 METASOURCES = AUTO
-noinst_LIBRARIES = libcsg.a 
-libcsg_a_SOURCES = algprim.cpp brick.cpp   \
+noinst_LTLIBRARIES = libcsg.la 
+libcsg_la_SOURCES = algprim.cpp brick.cpp   \
 bspline2d.cpp csgeom.cpp csgparser.cpp curve2d.cpp edgeflw.cpp	       \
 explicitcurve2d.cpp extrusion.cpp gencyl.cpp genmesh.cpp identify.cpp  \
 manifold.cpp meshsurf.cpp polyhedra.cpp revolution.cpp singularref.cpp \
@@ -280,12 +275,16 @@ $(top_srcdir)/configure:  $(am__configure_deps)
 $(ACLOCAL_M4):  $(am__aclocal_m4_deps)
 	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
 
-clean-noinstLIBRARIES:
-	-test -z "$(noinst_LIBRARIES)" || rm -f $(noinst_LIBRARIES)
-libcsg.a: $(libcsg_a_OBJECTS) $(libcsg_a_DEPENDENCIES) 
-	-rm -f libcsg.a
-	$(libcsg_a_AR) libcsg.a $(libcsg_a_OBJECTS) $(libcsg_a_LIBADD)
-	$(RANLIB) libcsg.a
+clean-noinstLTLIBRARIES:
+	-test -z "$(noinst_LTLIBRARIES)" || rm -f $(noinst_LTLIBRARIES)
+	@list='$(noinst_LTLIBRARIES)'; for p in $$list; do \
+	  dir="`echo $$p | sed -e 's|/[^/]*$$||'`"; \
+	  test "$$dir" != "$$p" || dir=.; \
+	  echo "rm -f \"$${dir}/so_locations\""; \
+	  rm -f "$${dir}/so_locations"; \
+	done
+libcsg.la: $(libcsg_la_OBJECTS) $(libcsg_la_DEPENDENCIES) 
+	$(CXXLINK)  $(libcsg_la_OBJECTS) $(libcsg_la_LIBADD) $(LIBS)
 
 mostlyclean-compile:
 	-rm -f *.$(OBJEXT)
@@ -293,28 +292,28 @@ mostlyclean-compile:
 distclean-compile:
 	-rm -f *.tab.c
 
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/algprim.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/brick.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/bspline2d.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/csgeom.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/csgparser.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/curve2d.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/edgeflw.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/explicitcurve2d.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/extrusion.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/gencyl.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/genmesh.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/identify.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/manifold.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/meshsurf.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/polyhedra.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/revolution.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/singularref.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/solid.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/specpoin.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/spline3d.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/surface.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/triapprox.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/algprim.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/brick.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/bspline2d.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/csgeom.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/csgparser.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/curve2d.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/edgeflw.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/explicitcurve2d.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/extrusion.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/gencyl.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/genmesh.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/identify.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/manifold.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/meshsurf.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/polyhedra.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/revolution.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/singularref.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/solid.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/specpoin.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/spline3d.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/surface.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/triapprox.Plo@am__quote@
 
 .cpp.o:
 @am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
@@ -418,7 +417,7 @@ distdir: $(DISTFILES)
 	done
 check-am: all-am
 check: check-am
-all-am: Makefile $(LIBRARIES) $(HEADERS)
+all-am: Makefile $(LTLIBRARIES) $(HEADERS)
 installdirs:
 install: install-am
 install-exec: install-exec-am
@@ -446,7 +445,7 @@ maintainer-clean-generic:
 	@echo "it deletes files that may require special tools to rebuild."
 clean: clean-am
 
-clean-am: clean-generic clean-libtool clean-noinstLIBRARIES \
+clean-am: clean-generic clean-libtool clean-noinstLTLIBRARIES \
 	mostlyclean-am
 
 distclean: distclean-am
@@ -506,7 +505,7 @@ uninstall-am:
 .MAKE: install-am install-strip
 
 .PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \
-	clean-libtool clean-noinstLIBRARIES ctags distclean \
+	clean-libtool clean-noinstLTLIBRARIES ctags distclean \
 	distclean-compile distclean-generic distclean-libtool \
 	distclean-tags distdir dvi dvi-am html html-am info info-am \
 	install install-am install-data install-data-am install-dvi \
diff --git a/libsrc/general/Makefile.am b/libsrc/general/Makefile.am
index dcb13353..27787a53 100644
--- a/libsrc/general/Makefile.am
+++ b/libsrc/general/Makefile.am
@@ -4,7 +4,7 @@ include_HEADERS =  dynamicmem.hpp moveablemem.hpp  parthreads.hpp ngexception.hp
 
 AM_CPPFLAGS = -I$(top_srcdir)/libsrc/include
 METASOURCES = AUTO
-noinst_LIBRARIES = libgeneral.a
-libgeneral_a_SOURCES = array.cpp bitarray.cpp dynamicmem.cpp flags.cpp \
+noinst_LTLIBRARIES = libgeneral.la
+libgeneral_la_SOURCES = array.cpp bitarray.cpp dynamicmem.cpp flags.cpp \
 	hashtabl.cpp moveablemem.cpp mystring.cpp ngexception.cpp optmem.cpp parthreads.cpp \
 	profiler.cpp seti.cpp sort.cpp spbita2d.cpp symbolta.cpp table.cpp
diff --git a/libsrc/general/Makefile.in b/libsrc/general/Makefile.in
index 954bc778..dc690bdf 100644
--- a/libsrc/general/Makefile.in
+++ b/libsrc/general/Makefile.in
@@ -46,17 +46,13 @@ am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
 CONFIG_HEADER = $(top_builddir)/config.h
 CONFIG_CLEAN_FILES =
-LIBRARIES = $(noinst_LIBRARIES)
-ARFLAGS = cru
-libgeneral_a_AR = $(AR) $(ARFLAGS)
-libgeneral_a_LIBADD =
-am_libgeneral_a_OBJECTS = array.$(OBJEXT) bitarray.$(OBJEXT) \
-	dynamicmem.$(OBJEXT) flags.$(OBJEXT) hashtabl.$(OBJEXT) \
-	moveablemem.$(OBJEXT) mystring.$(OBJEXT) ngexception.$(OBJEXT) \
-	optmem.$(OBJEXT) parthreads.$(OBJEXT) profiler.$(OBJEXT) \
-	seti.$(OBJEXT) sort.$(OBJEXT) spbita2d.$(OBJEXT) \
-	symbolta.$(OBJEXT) table.$(OBJEXT)
-libgeneral_a_OBJECTS = $(am_libgeneral_a_OBJECTS)
+LTLIBRARIES = $(noinst_LTLIBRARIES)
+libgeneral_la_LIBADD =
+am_libgeneral_la_OBJECTS = array.lo bitarray.lo dynamicmem.lo flags.lo \
+	hashtabl.lo moveablemem.lo mystring.lo ngexception.lo \
+	optmem.lo parthreads.lo profiler.lo seti.lo sort.lo \
+	spbita2d.lo symbolta.lo table.lo
+libgeneral_la_OBJECTS = $(am_libgeneral_la_OBJECTS)
 DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
 depcomp = $(SHELL) $(top_srcdir)/depcomp
 am__depfiles_maybe = depfiles
@@ -69,8 +65,8 @@ CXXLD = $(CXX)
 CXXLINK = $(LIBTOOL) --tag=CXX $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
 	--mode=link $(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) \
 	$(LDFLAGS) -o $@
-SOURCES = $(libgeneral_a_SOURCES)
-DIST_SOURCES = $(libgeneral_a_SOURCES)
+SOURCES = $(libgeneral_la_SOURCES)
+DIST_SOURCES = $(libgeneral_la_SOURCES)
 am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
 am__vpath_adj = case $$p in \
     $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
@@ -241,8 +237,8 @@ noinst_HEADERS = array.hpp myadt.hpp optmem.hpp sort.hpp table.hpp autodiff.hpp
 include_HEADERS = dynamicmem.hpp moveablemem.hpp  parthreads.hpp ngexception.hpp
 AM_CPPFLAGS = -I$(top_srcdir)/libsrc/include
 METASOURCES = AUTO
-noinst_LIBRARIES = libgeneral.a
-libgeneral_a_SOURCES = array.cpp bitarray.cpp dynamicmem.cpp flags.cpp \
+noinst_LTLIBRARIES = libgeneral.la
+libgeneral_la_SOURCES = array.cpp bitarray.cpp dynamicmem.cpp flags.cpp \
 	hashtabl.cpp moveablemem.cpp mystring.cpp ngexception.cpp optmem.cpp parthreads.cpp \
 	profiler.cpp seti.cpp sort.cpp spbita2d.cpp symbolta.cpp table.cpp
 
@@ -280,12 +276,16 @@ $(top_srcdir)/configure:  $(am__configure_deps)
 $(ACLOCAL_M4):  $(am__aclocal_m4_deps)
 	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
 
-clean-noinstLIBRARIES:
-	-test -z "$(noinst_LIBRARIES)" || rm -f $(noinst_LIBRARIES)
-libgeneral.a: $(libgeneral_a_OBJECTS) $(libgeneral_a_DEPENDENCIES) 
-	-rm -f libgeneral.a
-	$(libgeneral_a_AR) libgeneral.a $(libgeneral_a_OBJECTS) $(libgeneral_a_LIBADD)
-	$(RANLIB) libgeneral.a
+clean-noinstLTLIBRARIES:
+	-test -z "$(noinst_LTLIBRARIES)" || rm -f $(noinst_LTLIBRARIES)
+	@list='$(noinst_LTLIBRARIES)'; for p in $$list; do \
+	  dir="`echo $$p | sed -e 's|/[^/]*$$||'`"; \
+	  test "$$dir" != "$$p" || dir=.; \
+	  echo "rm -f \"$${dir}/so_locations\""; \
+	  rm -f "$${dir}/so_locations"; \
+	done
+libgeneral.la: $(libgeneral_la_OBJECTS) $(libgeneral_la_DEPENDENCIES) 
+	$(CXXLINK)  $(libgeneral_la_OBJECTS) $(libgeneral_la_LIBADD) $(LIBS)
 
 mostlyclean-compile:
 	-rm -f *.$(OBJEXT)
@@ -293,22 +293,22 @@ mostlyclean-compile:
 distclean-compile:
 	-rm -f *.tab.c
 
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/array.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/bitarray.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/dynamicmem.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/flags.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/hashtabl.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/moveablemem.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/mystring.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ngexception.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/optmem.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/parthreads.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/profiler.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/seti.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/sort.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/spbita2d.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/symbolta.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/table.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/array.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/bitarray.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/dynamicmem.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/flags.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/hashtabl.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/moveablemem.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/mystring.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ngexception.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/optmem.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/parthreads.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/profiler.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/seti.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/sort.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/spbita2d.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/symbolta.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/table.Plo@am__quote@
 
 .cpp.o:
 @am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
@@ -429,7 +429,7 @@ distdir: $(DISTFILES)
 	done
 check-am: all-am
 check: check-am
-all-am: Makefile $(LIBRARIES) $(HEADERS)
+all-am: Makefile $(LTLIBRARIES) $(HEADERS)
 installdirs:
 	for dir in "$(DESTDIR)$(includedir)"; do \
 	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
@@ -460,7 +460,7 @@ maintainer-clean-generic:
 	@echo "it deletes files that may require special tools to rebuild."
 clean: clean-am
 
-clean-am: clean-generic clean-libtool clean-noinstLIBRARIES \
+clean-am: clean-generic clean-libtool clean-noinstLTLIBRARIES \
 	mostlyclean-am
 
 distclean: distclean-am
@@ -520,7 +520,7 @@ uninstall-am: uninstall-includeHEADERS
 .MAKE: install-am install-strip
 
 .PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \
-	clean-libtool clean-noinstLIBRARIES ctags distclean \
+	clean-libtool clean-noinstLTLIBRARIES ctags distclean \
 	distclean-compile distclean-generic distclean-libtool \
 	distclean-tags distdir dvi dvi-am html html-am info info-am \
 	install install-am install-data install-data-am install-dvi \
diff --git a/libsrc/geom2d/Makefile.am b/libsrc/geom2d/Makefile.am
index 9214056e..2e2c30af 100644
--- a/libsrc/geom2d/Makefile.am
+++ b/libsrc/geom2d/Makefile.am
@@ -2,6 +2,6 @@ noinst_HEADERS = geom2dmesh.hpp  spline2d.hpp splinegeometry.hpp  spline.hpp geo
 
 AM_CPPFLAGS = -I$(top_srcdir)/libsrc/include
 METASOURCES = AUTO
-noinst_LIBRARIES = libgeom2d.a
-libgeom2d_a_SOURCES = genmesh2d.cpp geom2dmesh.cpp spline.cpp \
+noinst_LTLIBRARIES = libgeom2d.la
+libgeom2d_la_SOURCES = genmesh2d.cpp geom2dmesh.cpp spline.cpp \
 	splinegeometry.cpp
diff --git a/libsrc/geom2d/Makefile.in b/libsrc/geom2d/Makefile.in
index 6ae2c18c..f04691a4 100644
--- a/libsrc/geom2d/Makefile.in
+++ b/libsrc/geom2d/Makefile.in
@@ -46,13 +46,11 @@ am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
 CONFIG_HEADER = $(top_builddir)/config.h
 CONFIG_CLEAN_FILES =
-LIBRARIES = $(noinst_LIBRARIES)
-ARFLAGS = cru
-libgeom2d_a_AR = $(AR) $(ARFLAGS)
-libgeom2d_a_LIBADD =
-am_libgeom2d_a_OBJECTS = genmesh2d.$(OBJEXT) geom2dmesh.$(OBJEXT) \
-	spline.$(OBJEXT) splinegeometry.$(OBJEXT)
-libgeom2d_a_OBJECTS = $(am_libgeom2d_a_OBJECTS)
+LTLIBRARIES = $(noinst_LTLIBRARIES)
+libgeom2d_la_LIBADD =
+am_libgeom2d_la_OBJECTS = genmesh2d.lo geom2dmesh.lo spline.lo \
+	splinegeometry.lo
+libgeom2d_la_OBJECTS = $(am_libgeom2d_la_OBJECTS)
 DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
 depcomp = $(SHELL) $(top_srcdir)/depcomp
 am__depfiles_maybe = depfiles
@@ -65,8 +63,8 @@ CXXLD = $(CXX)
 CXXLINK = $(LIBTOOL) --tag=CXX $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
 	--mode=link $(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) \
 	$(LDFLAGS) -o $@
-SOURCES = $(libgeom2d_a_SOURCES)
-DIST_SOURCES = $(libgeom2d_a_SOURCES)
+SOURCES = $(libgeom2d_la_SOURCES)
+DIST_SOURCES = $(libgeom2d_la_SOURCES)
 HEADERS = $(noinst_HEADERS)
 ETAGS = etags
 CTAGS = ctags
@@ -228,8 +226,8 @@ top_srcdir = @top_srcdir@
 noinst_HEADERS = geom2dmesh.hpp  spline2d.hpp splinegeometry.hpp  spline.hpp geometry2d.hpp
 AM_CPPFLAGS = -I$(top_srcdir)/libsrc/include
 METASOURCES = AUTO
-noinst_LIBRARIES = libgeom2d.a
-libgeom2d_a_SOURCES = genmesh2d.cpp geom2dmesh.cpp spline.cpp \
+noinst_LTLIBRARIES = libgeom2d.la
+libgeom2d_la_SOURCES = genmesh2d.cpp geom2dmesh.cpp spline.cpp \
 	splinegeometry.cpp
 
 all: all-am
@@ -266,12 +264,16 @@ $(top_srcdir)/configure:  $(am__configure_deps)
 $(ACLOCAL_M4):  $(am__aclocal_m4_deps)
 	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
 
-clean-noinstLIBRARIES:
-	-test -z "$(noinst_LIBRARIES)" || rm -f $(noinst_LIBRARIES)
-libgeom2d.a: $(libgeom2d_a_OBJECTS) $(libgeom2d_a_DEPENDENCIES) 
-	-rm -f libgeom2d.a
-	$(libgeom2d_a_AR) libgeom2d.a $(libgeom2d_a_OBJECTS) $(libgeom2d_a_LIBADD)
-	$(RANLIB) libgeom2d.a
+clean-noinstLTLIBRARIES:
+	-test -z "$(noinst_LTLIBRARIES)" || rm -f $(noinst_LTLIBRARIES)
+	@list='$(noinst_LTLIBRARIES)'; for p in $$list; do \
+	  dir="`echo $$p | sed -e 's|/[^/]*$$||'`"; \
+	  test "$$dir" != "$$p" || dir=.; \
+	  echo "rm -f \"$${dir}/so_locations\""; \
+	  rm -f "$${dir}/so_locations"; \
+	done
+libgeom2d.la: $(libgeom2d_la_OBJECTS) $(libgeom2d_la_DEPENDENCIES) 
+	$(CXXLINK)  $(libgeom2d_la_OBJECTS) $(libgeom2d_la_LIBADD) $(LIBS)
 
 mostlyclean-compile:
 	-rm -f *.$(OBJEXT)
@@ -279,10 +281,10 @@ mostlyclean-compile:
 distclean-compile:
 	-rm -f *.tab.c
 
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/genmesh2d.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/geom2dmesh.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/spline.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/splinegeometry.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/genmesh2d.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/geom2dmesh.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/spline.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/splinegeometry.Plo@am__quote@
 
 .cpp.o:
 @am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
@@ -386,7 +388,7 @@ distdir: $(DISTFILES)
 	done
 check-am: all-am
 check: check-am
-all-am: Makefile $(LIBRARIES) $(HEADERS)
+all-am: Makefile $(LTLIBRARIES) $(HEADERS)
 installdirs:
 install: install-am
 install-exec: install-exec-am
@@ -414,7 +416,7 @@ maintainer-clean-generic:
 	@echo "it deletes files that may require special tools to rebuild."
 clean: clean-am
 
-clean-am: clean-generic clean-libtool clean-noinstLIBRARIES \
+clean-am: clean-generic clean-libtool clean-noinstLTLIBRARIES \
 	mostlyclean-am
 
 distclean: distclean-am
@@ -474,7 +476,7 @@ uninstall-am:
 .MAKE: install-am install-strip
 
 .PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \
-	clean-libtool clean-noinstLIBRARIES ctags distclean \
+	clean-libtool clean-noinstLTLIBRARIES ctags distclean \
 	distclean-compile distclean-generic distclean-libtool \
 	distclean-tags distdir dvi dvi-am html html-am info info-am \
 	install install-am install-data install-data-am install-dvi \
diff --git a/libsrc/gprim/Makefile.am b/libsrc/gprim/Makefile.am
index 6bb5638c..ed680a05 100644
--- a/libsrc/gprim/Makefile.am
+++ b/libsrc/gprim/Makefile.am
@@ -2,6 +2,6 @@ noinst_HEADERS = adtree.hpp  geom3d.hpp     geomobjects2.hpp  geomops2.hpp  geom
 
 AM_CPPFLAGS = -I$(top_srcdir)/libsrc/include
 METASOURCES = AUTO
-noinst_LIBRARIES = libgprim.a
-libgprim_a_SOURCES = adtree.cpp geom2d.cpp geom3d.cpp geomfuncs.cpp \
+noinst_LTLIBRARIES = libgprim.la
+libgprim_la_SOURCES = adtree.cpp geom2d.cpp geom3d.cpp geomfuncs.cpp \
 	geomtest3d.cpp transform3d.cpp
diff --git a/libsrc/gprim/Makefile.in b/libsrc/gprim/Makefile.in
index 1aca4929..d9cec928 100644
--- a/libsrc/gprim/Makefile.in
+++ b/libsrc/gprim/Makefile.in
@@ -46,14 +46,11 @@ am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
 CONFIG_HEADER = $(top_builddir)/config.h
 CONFIG_CLEAN_FILES =
-LIBRARIES = $(noinst_LIBRARIES)
-ARFLAGS = cru
-libgprim_a_AR = $(AR) $(ARFLAGS)
-libgprim_a_LIBADD =
-am_libgprim_a_OBJECTS = adtree.$(OBJEXT) geom2d.$(OBJEXT) \
-	geom3d.$(OBJEXT) geomfuncs.$(OBJEXT) geomtest3d.$(OBJEXT) \
-	transform3d.$(OBJEXT)
-libgprim_a_OBJECTS = $(am_libgprim_a_OBJECTS)
+LTLIBRARIES = $(noinst_LTLIBRARIES)
+libgprim_la_LIBADD =
+am_libgprim_la_OBJECTS = adtree.lo geom2d.lo geom3d.lo geomfuncs.lo \
+	geomtest3d.lo transform3d.lo
+libgprim_la_OBJECTS = $(am_libgprim_la_OBJECTS)
 DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
 depcomp = $(SHELL) $(top_srcdir)/depcomp
 am__depfiles_maybe = depfiles
@@ -66,8 +63,8 @@ CXXLD = $(CXX)
 CXXLINK = $(LIBTOOL) --tag=CXX $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
 	--mode=link $(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) \
 	$(LDFLAGS) -o $@
-SOURCES = $(libgprim_a_SOURCES)
-DIST_SOURCES = $(libgprim_a_SOURCES)
+SOURCES = $(libgprim_la_SOURCES)
+DIST_SOURCES = $(libgprim_la_SOURCES)
 HEADERS = $(noinst_HEADERS)
 ETAGS = etags
 CTAGS = ctags
@@ -229,8 +226,8 @@ top_srcdir = @top_srcdir@
 noinst_HEADERS = adtree.hpp  geom3d.hpp     geomobjects2.hpp  geomops2.hpp  geomtest3d.hpp  transform3d.hpp geom2d.hpp  geomfuncs.hpp  geomobjects.hpp   geomops.hpp   gprim.hpp
 AM_CPPFLAGS = -I$(top_srcdir)/libsrc/include
 METASOURCES = AUTO
-noinst_LIBRARIES = libgprim.a
-libgprim_a_SOURCES = adtree.cpp geom2d.cpp geom3d.cpp geomfuncs.cpp \
+noinst_LTLIBRARIES = libgprim.la
+libgprim_la_SOURCES = adtree.cpp geom2d.cpp geom3d.cpp geomfuncs.cpp \
 	geomtest3d.cpp transform3d.cpp
 
 all: all-am
@@ -267,12 +264,16 @@ $(top_srcdir)/configure:  $(am__configure_deps)
 $(ACLOCAL_M4):  $(am__aclocal_m4_deps)
 	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
 
-clean-noinstLIBRARIES:
-	-test -z "$(noinst_LIBRARIES)" || rm -f $(noinst_LIBRARIES)
-libgprim.a: $(libgprim_a_OBJECTS) $(libgprim_a_DEPENDENCIES) 
-	-rm -f libgprim.a
-	$(libgprim_a_AR) libgprim.a $(libgprim_a_OBJECTS) $(libgprim_a_LIBADD)
-	$(RANLIB) libgprim.a
+clean-noinstLTLIBRARIES:
+	-test -z "$(noinst_LTLIBRARIES)" || rm -f $(noinst_LTLIBRARIES)
+	@list='$(noinst_LTLIBRARIES)'; for p in $$list; do \
+	  dir="`echo $$p | sed -e 's|/[^/]*$$||'`"; \
+	  test "$$dir" != "$$p" || dir=.; \
+	  echo "rm -f \"$${dir}/so_locations\""; \
+	  rm -f "$${dir}/so_locations"; \
+	done
+libgprim.la: $(libgprim_la_OBJECTS) $(libgprim_la_DEPENDENCIES) 
+	$(CXXLINK)  $(libgprim_la_OBJECTS) $(libgprim_la_LIBADD) $(LIBS)
 
 mostlyclean-compile:
 	-rm -f *.$(OBJEXT)
@@ -280,12 +281,12 @@ mostlyclean-compile:
 distclean-compile:
 	-rm -f *.tab.c
 
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/adtree.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/geom2d.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/geom3d.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/geomfuncs.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/geomtest3d.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/transform3d.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/adtree.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/geom2d.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/geom3d.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/geomfuncs.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/geomtest3d.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/transform3d.Plo@am__quote@
 
 .cpp.o:
 @am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
@@ -389,7 +390,7 @@ distdir: $(DISTFILES)
 	done
 check-am: all-am
 check: check-am
-all-am: Makefile $(LIBRARIES) $(HEADERS)
+all-am: Makefile $(LTLIBRARIES) $(HEADERS)
 installdirs:
 install: install-am
 install-exec: install-exec-am
@@ -417,7 +418,7 @@ maintainer-clean-generic:
 	@echo "it deletes files that may require special tools to rebuild."
 clean: clean-am
 
-clean-am: clean-generic clean-libtool clean-noinstLIBRARIES \
+clean-am: clean-generic clean-libtool clean-noinstLTLIBRARIES \
 	mostlyclean-am
 
 distclean: distclean-am
@@ -477,7 +478,7 @@ uninstall-am:
 .MAKE: install-am install-strip
 
 .PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \
-	clean-libtool clean-noinstLIBRARIES ctags distclean \
+	clean-libtool clean-noinstLTLIBRARIES ctags distclean \
 	distclean-compile distclean-generic distclean-libtool \
 	distclean-tags distdir dvi dvi-am html html-am info info-am \
 	install install-am install-data install-data-am install-dvi \
diff --git a/libsrc/include/Makefile.am b/libsrc/include/Makefile.am
index 67660728..60cfbe60 100644
--- a/libsrc/include/Makefile.am
+++ b/libsrc/include/Makefile.am
@@ -3,5 +3,7 @@ stepgeom.hpp visual.hpp csg.hpp incvis.hpp myadt.hpp opti.hpp	 \
 stepreader.hpp geometry2d.hpp linalg.hpp mydefs.hpp parallel.hpp \
 stlgeom.hpp mystdlib.h
 
+include_HEADERS = nginterface.h
+
 AM_CPPFLAGS = 
 METASOURCES = AUTO
diff --git a/libsrc/include/Makefile.in b/libsrc/include/Makefile.in
index d254069e..3b86051f 100644
--- a/libsrc/include/Makefile.in
+++ b/libsrc/include/Makefile.in
@@ -33,8 +33,8 @@ POST_UNINSTALL = :
 build_triplet = @build@
 host_triplet = @host@
 subdir = libsrc/include
-DIST_COMMON = $(noinst_HEADERS) $(srcdir)/Makefile.am \
-	$(srcdir)/Makefile.in
+DIST_COMMON = $(include_HEADERS) $(noinst_HEADERS) \
+	$(srcdir)/Makefile.am $(srcdir)/Makefile.in
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
 am__aclocal_m4_deps = $(top_srcdir)/m4/libtool.m4 \
 	$(top_srcdir)/m4/ltoptions.m4 $(top_srcdir)/m4/ltsugar.m4 \
@@ -47,7 +47,15 @@ CONFIG_HEADER = $(top_builddir)/config.h
 CONFIG_CLEAN_FILES =
 SOURCES =
 DIST_SOURCES =
-HEADERS = $(noinst_HEADERS)
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
+am__vpath_adj = case $$p in \
+    $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
+    *) f=$$p;; \
+  esac;
+am__strip_dir = `echo $$p | sed -e 's|^.*/||'`;
+am__installdirs = "$(DESTDIR)$(includedir)"
+includeHEADERS_INSTALL = $(INSTALL_HEADER)
+HEADERS = $(include_HEADERS) $(noinst_HEADERS)
 ETAGS = etags
 CTAGS = ctags
 DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
@@ -210,6 +218,7 @@ stepgeom.hpp visual.hpp csg.hpp incvis.hpp myadt.hpp opti.hpp	 \
 stepreader.hpp geometry2d.hpp linalg.hpp mydefs.hpp parallel.hpp \
 stlgeom.hpp mystdlib.h
 
+include_HEADERS = nginterface.h
 AM_CPPFLAGS = 
 METASOURCES = AUTO
 all: all-am
@@ -250,6 +259,23 @@ mostlyclean-libtool:
 
 clean-libtool:
 	-rm -rf .libs _libs
+install-includeHEADERS: $(include_HEADERS)
+	@$(NORMAL_INSTALL)
+	test -z "$(includedir)" || $(MKDIR_P) "$(DESTDIR)$(includedir)"
+	@list='$(include_HEADERS)'; for p in $$list; do \
+	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+	  f=$(am__strip_dir) \
+	  echo " $(includeHEADERS_INSTALL) '$$d$$p' '$(DESTDIR)$(includedir)/$$f'"; \
+	  $(includeHEADERS_INSTALL) "$$d$$p" "$(DESTDIR)$(includedir)/$$f"; \
+	done
+
+uninstall-includeHEADERS:
+	@$(NORMAL_UNINSTALL)
+	@list='$(include_HEADERS)'; for p in $$list; do \
+	  f=$(am__strip_dir) \
+	  echo " rm -f '$(DESTDIR)$(includedir)/$$f'"; \
+	  rm -f "$(DESTDIR)$(includedir)/$$f"; \
+	done
 
 ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
 	list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
@@ -328,6 +354,9 @@ check-am: all-am
 check: check-am
 all-am: Makefile $(HEADERS)
 installdirs:
+	for dir in "$(DESTDIR)$(includedir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
 install: install-am
 install-exec: install-exec-am
 install-data: install-data-am
@@ -370,7 +399,7 @@ info: info-am
 
 info-am:
 
-install-data-am:
+install-data-am: install-includeHEADERS
 
 install-dvi: install-dvi-am
 
@@ -404,7 +433,7 @@ ps: ps-am
 
 ps-am:
 
-uninstall-am:
+uninstall-am: uninstall-includeHEADERS
 
 .MAKE: install-am install-strip
 
@@ -413,13 +442,13 @@ uninstall-am:
 	distclean-libtool distclean-tags distdir dvi dvi-am html \
 	html-am info info-am install install-am install-data \
 	install-data-am install-dvi install-dvi-am install-exec \
-	install-exec-am install-html install-html-am install-info \
-	install-info-am install-man install-pdf install-pdf-am \
-	install-ps install-ps-am install-strip installcheck \
-	installcheck-am installdirs maintainer-clean \
-	maintainer-clean-generic mostlyclean mostlyclean-generic \
-	mostlyclean-libtool pdf pdf-am ps ps-am tags uninstall \
-	uninstall-am
+	install-exec-am install-html install-html-am \
+	install-includeHEADERS install-info install-info-am \
+	install-man install-pdf install-pdf-am install-ps \
+	install-ps-am install-strip installcheck installcheck-am \
+	installdirs maintainer-clean maintainer-clean-generic \
+	mostlyclean mostlyclean-generic mostlyclean-libtool pdf pdf-am \
+	ps ps-am tags uninstall uninstall-am uninstall-includeHEADERS
 
 # Tell versions [3.59,3.63) of GNU make to not export all variables.
 # Otherwise a system limit (for SysV at least) may be exceeded.
diff --git a/libsrc/interface/nginterface.h b/libsrc/include/nginterface.h
similarity index 100%
rename from libsrc/interface/nginterface.h
rename to libsrc/include/nginterface.h
diff --git a/libsrc/interface/Makefile.am b/libsrc/interface/Makefile.am
index 19ea2043..5da4d6c8 100644
--- a/libsrc/interface/Makefile.am
+++ b/libsrc/interface/Makefile.am
@@ -1,11 +1,10 @@
-include_HEADERS = nginterface.h
+# include_HEADERS = nginterface.h
 noinst_HEADERS = writeuser.hpp
 
 AM_CPPFLAGS = -I$(top_srcdir)/libsrc/include -I$(top_srcdir)/libsrc/interface $(TCL_INCLUDES) -DOPENGL
 METASOURCES = AUTO
-noinst_LIBRARIES = libinterface.a
-libinterface_a_SOURCES = importsolution.cpp nginterface.cpp printdest.cpp \
-	read_fnf_mesh.cpp readtetmesh.cpp readuser.cpp writeabaqus.cpp writediffpack.cpp \
+noinst_LTLIBRARIES = libinterface.la
+libinterface_la_SOURCES = read_fnf_mesh.cpp readtetmesh.cpp readuser.cpp writeabaqus.cpp writediffpack.cpp \
 	writedolfin.cpp writeelmer.cpp writefeap.cpp writefluent.cpp writegmsh.cpp writejcm.cpp \
 	writepermas.cpp writetecplot.cpp writetet.cpp writetochnog.cpp writeuser.cpp \
 	wuchemnitz.cpp
diff --git a/libsrc/interface/Makefile.in b/libsrc/interface/Makefile.in
index 1ea8aa4b..aa87bd82 100644
--- a/libsrc/interface/Makefile.in
+++ b/libsrc/interface/Makefile.in
@@ -34,8 +34,8 @@ POST_UNINSTALL = :
 build_triplet = @build@
 host_triplet = @host@
 subdir = libsrc/interface
-DIST_COMMON = $(include_HEADERS) $(noinst_HEADERS) \
-	$(srcdir)/Makefile.am $(srcdir)/Makefile.in
+DIST_COMMON = $(noinst_HEADERS) $(srcdir)/Makefile.am \
+	$(srcdir)/Makefile.in
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
 am__aclocal_m4_deps = $(top_srcdir)/m4/libtool.m4 \
 	$(top_srcdir)/m4/ltoptions.m4 $(top_srcdir)/m4/ltsugar.m4 \
@@ -46,21 +46,14 @@ am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
 CONFIG_HEADER = $(top_builddir)/config.h
 CONFIG_CLEAN_FILES =
-LIBRARIES = $(noinst_LIBRARIES)
-ARFLAGS = cru
-libinterface_a_AR = $(AR) $(ARFLAGS)
-libinterface_a_LIBADD =
-am_libinterface_a_OBJECTS = importsolution.$(OBJEXT) \
-	nginterface.$(OBJEXT) printdest.$(OBJEXT) \
-	read_fnf_mesh.$(OBJEXT) readtetmesh.$(OBJEXT) \
-	readuser.$(OBJEXT) writeabaqus.$(OBJEXT) \
-	writediffpack.$(OBJEXT) writedolfin.$(OBJEXT) \
-	writeelmer.$(OBJEXT) writefeap.$(OBJEXT) writefluent.$(OBJEXT) \
-	writegmsh.$(OBJEXT) writejcm.$(OBJEXT) writepermas.$(OBJEXT) \
-	writetecplot.$(OBJEXT) writetet.$(OBJEXT) \
-	writetochnog.$(OBJEXT) writeuser.$(OBJEXT) \
-	wuchemnitz.$(OBJEXT)
-libinterface_a_OBJECTS = $(am_libinterface_a_OBJECTS)
+LTLIBRARIES = $(noinst_LTLIBRARIES)
+libinterface_la_LIBADD =
+am_libinterface_la_OBJECTS = read_fnf_mesh.lo readtetmesh.lo \
+	readuser.lo writeabaqus.lo writediffpack.lo writedolfin.lo \
+	writeelmer.lo writefeap.lo writefluent.lo writegmsh.lo \
+	writejcm.lo writepermas.lo writetecplot.lo writetet.lo \
+	writetochnog.lo writeuser.lo wuchemnitz.lo
+libinterface_la_OBJECTS = $(am_libinterface_la_OBJECTS)
 DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
 depcomp = $(SHELL) $(top_srcdir)/depcomp
 am__depfiles_maybe = depfiles
@@ -73,17 +66,9 @@ CXXLD = $(CXX)
 CXXLINK = $(LIBTOOL) --tag=CXX $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
 	--mode=link $(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) \
 	$(LDFLAGS) -o $@
-SOURCES = $(libinterface_a_SOURCES)
-DIST_SOURCES = $(libinterface_a_SOURCES)
-am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
-am__vpath_adj = case $$p in \
-    $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
-    *) f=$$p;; \
-  esac;
-am__strip_dir = `echo $$p | sed -e 's|^.*/||'`;
-am__installdirs = "$(DESTDIR)$(includedir)"
-includeHEADERS_INSTALL = $(INSTALL_HEADER)
-HEADERS = $(include_HEADERS) $(noinst_HEADERS)
+SOURCES = $(libinterface_la_SOURCES)
+DIST_SOURCES = $(libinterface_la_SOURCES)
+HEADERS = $(noinst_HEADERS)
 ETAGS = etags
 CTAGS = ctags
 DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
@@ -241,13 +226,13 @@ target_alias = @target_alias@
 top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
-include_HEADERS = nginterface.h
+
+# include_HEADERS = nginterface.h
 noinst_HEADERS = writeuser.hpp
 AM_CPPFLAGS = -I$(top_srcdir)/libsrc/include -I$(top_srcdir)/libsrc/interface $(TCL_INCLUDES) -DOPENGL
 METASOURCES = AUTO
-noinst_LIBRARIES = libinterface.a
-libinterface_a_SOURCES = importsolution.cpp nginterface.cpp printdest.cpp \
-	read_fnf_mesh.cpp readtetmesh.cpp readuser.cpp writeabaqus.cpp writediffpack.cpp \
+noinst_LTLIBRARIES = libinterface.la
+libinterface_la_SOURCES = read_fnf_mesh.cpp readtetmesh.cpp readuser.cpp writeabaqus.cpp writediffpack.cpp \
 	writedolfin.cpp writeelmer.cpp writefeap.cpp writefluent.cpp writegmsh.cpp writejcm.cpp \
 	writepermas.cpp writetecplot.cpp writetet.cpp writetochnog.cpp writeuser.cpp \
 	wuchemnitz.cpp
@@ -286,12 +271,16 @@ $(top_srcdir)/configure:  $(am__configure_deps)
 $(ACLOCAL_M4):  $(am__aclocal_m4_deps)
 	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
 
-clean-noinstLIBRARIES:
-	-test -z "$(noinst_LIBRARIES)" || rm -f $(noinst_LIBRARIES)
-libinterface.a: $(libinterface_a_OBJECTS) $(libinterface_a_DEPENDENCIES) 
-	-rm -f libinterface.a
-	$(libinterface_a_AR) libinterface.a $(libinterface_a_OBJECTS) $(libinterface_a_LIBADD)
-	$(RANLIB) libinterface.a
+clean-noinstLTLIBRARIES:
+	-test -z "$(noinst_LTLIBRARIES)" || rm -f $(noinst_LTLIBRARIES)
+	@list='$(noinst_LTLIBRARIES)'; for p in $$list; do \
+	  dir="`echo $$p | sed -e 's|/[^/]*$$||'`"; \
+	  test "$$dir" != "$$p" || dir=.; \
+	  echo "rm -f \"$${dir}/so_locations\""; \
+	  rm -f "$${dir}/so_locations"; \
+	done
+libinterface.la: $(libinterface_la_OBJECTS) $(libinterface_la_DEPENDENCIES) 
+	$(CXXLINK)  $(libinterface_la_OBJECTS) $(libinterface_la_LIBADD) $(LIBS)
 
 mostlyclean-compile:
 	-rm -f *.$(OBJEXT)
@@ -299,26 +288,23 @@ mostlyclean-compile:
 distclean-compile:
 	-rm -f *.tab.c
 
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/importsolution.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/nginterface.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/printdest.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/read_fnf_mesh.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/readtetmesh.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/readuser.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/writeabaqus.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/writediffpack.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/writedolfin.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/writeelmer.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/writefeap.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/writefluent.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/writegmsh.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/writejcm.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/writepermas.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/writetecplot.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/writetet.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/writetochnog.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/writeuser.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/wuchemnitz.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/read_fnf_mesh.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/readtetmesh.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/readuser.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/writeabaqus.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/writediffpack.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/writedolfin.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/writeelmer.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/writefeap.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/writefluent.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/writegmsh.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/writejcm.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/writepermas.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/writetecplot.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/writetet.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/writetochnog.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/writeuser.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/wuchemnitz.Plo@am__quote@
 
 .cpp.o:
 @am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
@@ -346,23 +332,6 @@ mostlyclean-libtool:
 
 clean-libtool:
 	-rm -rf .libs _libs
-install-includeHEADERS: $(include_HEADERS)
-	@$(NORMAL_INSTALL)
-	test -z "$(includedir)" || $(MKDIR_P) "$(DESTDIR)$(includedir)"
-	@list='$(include_HEADERS)'; for p in $$list; do \
-	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
-	  f=$(am__strip_dir) \
-	  echo " $(includeHEADERS_INSTALL) '$$d$$p' '$(DESTDIR)$(includedir)/$$f'"; \
-	  $(includeHEADERS_INSTALL) "$$d$$p" "$(DESTDIR)$(includedir)/$$f"; \
-	done
-
-uninstall-includeHEADERS:
-	@$(NORMAL_UNINSTALL)
-	@list='$(include_HEADERS)'; for p in $$list; do \
-	  f=$(am__strip_dir) \
-	  echo " rm -f '$(DESTDIR)$(includedir)/$$f'"; \
-	  rm -f "$(DESTDIR)$(includedir)/$$f"; \
-	done
 
 ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
 	list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
@@ -439,11 +408,8 @@ distdir: $(DISTFILES)
 	done
 check-am: all-am
 check: check-am
-all-am: Makefile $(LIBRARIES) $(HEADERS)
+all-am: Makefile $(LTLIBRARIES) $(HEADERS)
 installdirs:
-	for dir in "$(DESTDIR)$(includedir)"; do \
-	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
-	done
 install: install-am
 install-exec: install-exec-am
 install-data: install-data-am
@@ -470,7 +436,7 @@ maintainer-clean-generic:
 	@echo "it deletes files that may require special tools to rebuild."
 clean: clean-am
 
-clean-am: clean-generic clean-libtool clean-noinstLIBRARIES \
+clean-am: clean-generic clean-libtool clean-noinstLTLIBRARIES \
 	mostlyclean-am
 
 distclean: distclean-am
@@ -489,7 +455,7 @@ info: info-am
 
 info-am:
 
-install-data-am: install-includeHEADERS
+install-data-am:
 
 install-dvi: install-dvi-am
 
@@ -525,23 +491,22 @@ ps: ps-am
 
 ps-am:
 
-uninstall-am: uninstall-includeHEADERS
+uninstall-am:
 
 .MAKE: install-am install-strip
 
 .PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \
-	clean-libtool clean-noinstLIBRARIES ctags distclean \
+	clean-libtool clean-noinstLTLIBRARIES ctags distclean \
 	distclean-compile distclean-generic distclean-libtool \
 	distclean-tags distdir dvi dvi-am html html-am info info-am \
 	install install-am install-data install-data-am install-dvi \
 	install-dvi-am install-exec install-exec-am install-html \
-	install-html-am install-includeHEADERS install-info \
-	install-info-am install-man install-pdf install-pdf-am \
-	install-ps install-ps-am install-strip installcheck \
-	installcheck-am installdirs maintainer-clean \
-	maintainer-clean-generic mostlyclean mostlyclean-compile \
-	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
-	tags uninstall uninstall-am uninstall-includeHEADERS
+	install-html-am install-info install-info-am install-man \
+	install-pdf install-pdf-am install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	maintainer-clean maintainer-clean-generic mostlyclean \
+	mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+	pdf pdf-am ps ps-am tags uninstall uninstall-am
 
 # Tell versions [3.59,3.63) of GNU make to not export all variables.
 # Otherwise a system limit (for SysV at least) may be exceeded.
diff --git a/libsrc/interface/printdest.cpp b/libsrc/interface/printdest.cpp
deleted file mode 100644
index 0db654d9..00000000
--- a/libsrc/interface/printdest.cpp
+++ /dev/null
@@ -1,11 +0,0 @@
-#include <mystdlib.h>
-#include <myadt.hpp>
-
-namespace netgen
-{
-  //Destination for messages, errors, ...
-  void Ng_PrintDest(const char * s)
-  {
-    (*mycout) << s << flush;
-  }
-}
diff --git a/libsrc/interface/writeuser.hpp b/libsrc/interface/writeuser.hpp
index d9be90ec..9265f30c 100644
--- a/libsrc/interface/writeuser.hpp
+++ b/libsrc/interface/writeuser.hpp
@@ -22,10 +22,6 @@ extern
 void ReadFile (Mesh & mesh,
 	       const string & filename);
 
-extern 
-void ImportSolution (const char * filename);
-
-
 
 
 
diff --git a/libsrc/linalg/Makefile.am b/libsrc/linalg/Makefile.am
index da1dd338..77022183 100644
--- a/libsrc/linalg/Makefile.am
+++ b/libsrc/linalg/Makefile.am
@@ -1,5 +1,7 @@
 noinst_HEADERS = densemat.hpp linalg.hpp polynomial.hpp vector.hpp
 AM_CPPFLAGS = -I$(top_srcdir)/libsrc/include
 METASOURCES = AUTO
-noinst_LIBRARIES = libla.a
-libla_a_SOURCES = densemat.cpp polynomial.cpp vector.cpp
+noinst_LTLIBRARIES = libla.la
+libla_la_SOURCES = densemat.cpp polynomial.cpp vector.cpp
+
+libla_la_LDFLAGS = -rdynamic
diff --git a/libsrc/linalg/Makefile.in b/libsrc/linalg/Makefile.in
index 29ff7baf..826f6e8d 100644
--- a/libsrc/linalg/Makefile.in
+++ b/libsrc/linalg/Makefile.in
@@ -46,13 +46,13 @@ am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
 CONFIG_HEADER = $(top_builddir)/config.h
 CONFIG_CLEAN_FILES =
-LIBRARIES = $(noinst_LIBRARIES)
-ARFLAGS = cru
-libla_a_AR = $(AR) $(ARFLAGS)
-libla_a_LIBADD =
-am_libla_a_OBJECTS = densemat.$(OBJEXT) polynomial.$(OBJEXT) \
-	vector.$(OBJEXT)
-libla_a_OBJECTS = $(am_libla_a_OBJECTS)
+LTLIBRARIES = $(noinst_LTLIBRARIES)
+libla_la_LIBADD =
+am_libla_la_OBJECTS = densemat.lo polynomial.lo vector.lo
+libla_la_OBJECTS = $(am_libla_la_OBJECTS)
+libla_la_LINK = $(LIBTOOL) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CXXLD) $(AM_CXXFLAGS) \
+	$(CXXFLAGS) $(libla_la_LDFLAGS) $(LDFLAGS) -o $@
 DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
 depcomp = $(SHELL) $(top_srcdir)/depcomp
 am__depfiles_maybe = depfiles
@@ -65,8 +65,8 @@ CXXLD = $(CXX)
 CXXLINK = $(LIBTOOL) --tag=CXX $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
 	--mode=link $(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) \
 	$(LDFLAGS) -o $@
-SOURCES = $(libla_a_SOURCES)
-DIST_SOURCES = $(libla_a_SOURCES)
+SOURCES = $(libla_la_SOURCES)
+DIST_SOURCES = $(libla_la_SOURCES)
 HEADERS = $(noinst_HEADERS)
 ETAGS = etags
 CTAGS = ctags
@@ -228,8 +228,9 @@ top_srcdir = @top_srcdir@
 noinst_HEADERS = densemat.hpp linalg.hpp polynomial.hpp vector.hpp
 AM_CPPFLAGS = -I$(top_srcdir)/libsrc/include
 METASOURCES = AUTO
-noinst_LIBRARIES = libla.a
-libla_a_SOURCES = densemat.cpp polynomial.cpp vector.cpp
+noinst_LTLIBRARIES = libla.la
+libla_la_SOURCES = densemat.cpp polynomial.cpp vector.cpp
+libla_la_LDFLAGS = -rdynamic
 all: all-am
 
 .SUFFIXES:
@@ -264,12 +265,16 @@ $(top_srcdir)/configure:  $(am__configure_deps)
 $(ACLOCAL_M4):  $(am__aclocal_m4_deps)
 	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
 
-clean-noinstLIBRARIES:
-	-test -z "$(noinst_LIBRARIES)" || rm -f $(noinst_LIBRARIES)
-libla.a: $(libla_a_OBJECTS) $(libla_a_DEPENDENCIES) 
-	-rm -f libla.a
-	$(libla_a_AR) libla.a $(libla_a_OBJECTS) $(libla_a_LIBADD)
-	$(RANLIB) libla.a
+clean-noinstLTLIBRARIES:
+	-test -z "$(noinst_LTLIBRARIES)" || rm -f $(noinst_LTLIBRARIES)
+	@list='$(noinst_LTLIBRARIES)'; for p in $$list; do \
+	  dir="`echo $$p | sed -e 's|/[^/]*$$||'`"; \
+	  test "$$dir" != "$$p" || dir=.; \
+	  echo "rm -f \"$${dir}/so_locations\""; \
+	  rm -f "$${dir}/so_locations"; \
+	done
+libla.la: $(libla_la_OBJECTS) $(libla_la_DEPENDENCIES) 
+	$(libla_la_LINK)  $(libla_la_OBJECTS) $(libla_la_LIBADD) $(LIBS)
 
 mostlyclean-compile:
 	-rm -f *.$(OBJEXT)
@@ -277,9 +282,9 @@ mostlyclean-compile:
 distclean-compile:
 	-rm -f *.tab.c
 
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/densemat.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/polynomial.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/vector.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/densemat.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/polynomial.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/vector.Plo@am__quote@
 
 .cpp.o:
 @am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
@@ -383,7 +388,7 @@ distdir: $(DISTFILES)
 	done
 check-am: all-am
 check: check-am
-all-am: Makefile $(LIBRARIES) $(HEADERS)
+all-am: Makefile $(LTLIBRARIES) $(HEADERS)
 installdirs:
 install: install-am
 install-exec: install-exec-am
@@ -411,7 +416,7 @@ maintainer-clean-generic:
 	@echo "it deletes files that may require special tools to rebuild."
 clean: clean-am
 
-clean-am: clean-generic clean-libtool clean-noinstLIBRARIES \
+clean-am: clean-generic clean-libtool clean-noinstLTLIBRARIES \
 	mostlyclean-am
 
 distclean: distclean-am
@@ -471,7 +476,7 @@ uninstall-am:
 .MAKE: install-am install-strip
 
 .PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \
-	clean-libtool clean-noinstLIBRARIES ctags distclean \
+	clean-libtool clean-noinstLTLIBRARIES ctags distclean \
 	distclean-compile distclean-generic distclean-libtool \
 	distclean-tags distdir dvi dvi-am html html-am info info-am \
 	install install-am install-data install-data-am install-dvi \
diff --git a/libsrc/meshing/Makefile.am b/libsrc/meshing/Makefile.am
index 559ba3dd..8333d32f 100644
--- a/libsrc/meshing/Makefile.am
+++ b/libsrc/meshing/Makefile.am
@@ -10,12 +10,14 @@ curvedelems_new.hpp hpref_pyramid.hpp meshclass.hpp ruler2.hpp
 
 AM_CPPFLAGS = -I$(top_srcdir)/libsrc/include
 METASOURCES = AUTO
-noinst_LIBRARIES = libmesh.a
-libmesh_a_SOURCES = adfront2.cpp adfront3.cpp bisect.cpp boundarylayer.cpp \
+noinst_LTLIBRARIES = libmesh.la
+libmesh_la_SOURCES = adfront2.cpp adfront3.cpp bisect.cpp boundarylayer.cpp \
 	clusters.cpp curvedelems_new.cpp delaunay.cpp geomsearch.cpp global.cpp \
 	hprefinement.cpp improve2.cpp improve2gen.cpp improve3.cpp localh.cpp meshclass.cpp \
 	meshfunc.cpp meshfunc2d.cpp meshing2.cpp meshing3.cpp meshtool.cpp meshtype.cpp \
 	msghandler.cpp netrule2.cpp netrule3.cpp parser2.cpp parser3.cpp prism2rls.cpp \
-	prism2rls_2.cpp pyramid2rls.cpp pyramidrls.cpp quadrls.cpp refine.cpp ruler2.cpp \
+	pyramid2rls.cpp pyramidrls.cpp quadrls.cpp refine.cpp ruler2.cpp \
 	ruler3.cpp secondorder.cpp smoothing2.5.cpp smoothing2.cpp smoothing3.cpp \
 	specials.cpp tetrarls.cpp topology.cpp triarls.cpp validate.cpp zrefine.cpp
+
+
diff --git a/libsrc/meshing/Makefile.in b/libsrc/meshing/Makefile.in
index cd72df7e..d539841e 100644
--- a/libsrc/meshing/Makefile.in
+++ b/libsrc/meshing/Makefile.in
@@ -46,27 +46,19 @@ am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
 CONFIG_HEADER = $(top_builddir)/config.h
 CONFIG_CLEAN_FILES =
-LIBRARIES = $(noinst_LIBRARIES)
-ARFLAGS = cru
-libmesh_a_AR = $(AR) $(ARFLAGS)
-libmesh_a_LIBADD =
-am_libmesh_a_OBJECTS = adfront2.$(OBJEXT) adfront3.$(OBJEXT) \
-	bisect.$(OBJEXT) boundarylayer.$(OBJEXT) clusters.$(OBJEXT) \
-	curvedelems_new.$(OBJEXT) delaunay.$(OBJEXT) \
-	geomsearch.$(OBJEXT) global.$(OBJEXT) hprefinement.$(OBJEXT) \
-	improve2.$(OBJEXT) improve2gen.$(OBJEXT) improve3.$(OBJEXT) \
-	localh.$(OBJEXT) meshclass.$(OBJEXT) meshfunc.$(OBJEXT) \
-	meshfunc2d.$(OBJEXT) meshing2.$(OBJEXT) meshing3.$(OBJEXT) \
-	meshtool.$(OBJEXT) meshtype.$(OBJEXT) msghandler.$(OBJEXT) \
-	netrule2.$(OBJEXT) netrule3.$(OBJEXT) parser2.$(OBJEXT) \
-	parser3.$(OBJEXT) prism2rls.$(OBJEXT) prism2rls_2.$(OBJEXT) \
-	pyramid2rls.$(OBJEXT) pyramidrls.$(OBJEXT) quadrls.$(OBJEXT) \
-	refine.$(OBJEXT) ruler2.$(OBJEXT) ruler3.$(OBJEXT) \
-	secondorder.$(OBJEXT) smoothing2.5.$(OBJEXT) \
-	smoothing2.$(OBJEXT) smoothing3.$(OBJEXT) specials.$(OBJEXT) \
-	tetrarls.$(OBJEXT) topology.$(OBJEXT) triarls.$(OBJEXT) \
-	validate.$(OBJEXT) zrefine.$(OBJEXT)
-libmesh_a_OBJECTS = $(am_libmesh_a_OBJECTS)
+LTLIBRARIES = $(noinst_LTLIBRARIES)
+libmesh_la_LIBADD =
+am_libmesh_la_OBJECTS = adfront2.lo adfront3.lo bisect.lo \
+	boundarylayer.lo clusters.lo curvedelems_new.lo delaunay.lo \
+	geomsearch.lo global.lo hprefinement.lo improve2.lo \
+	improve2gen.lo improve3.lo localh.lo meshclass.lo meshfunc.lo \
+	meshfunc2d.lo meshing2.lo meshing3.lo meshtool.lo meshtype.lo \
+	msghandler.lo netrule2.lo netrule3.lo parser2.lo parser3.lo \
+	prism2rls.lo pyramid2rls.lo pyramidrls.lo quadrls.lo refine.lo \
+	ruler2.lo ruler3.lo secondorder.lo smoothing2.5.lo \
+	smoothing2.lo smoothing3.lo specials.lo tetrarls.lo \
+	topology.lo triarls.lo validate.lo zrefine.lo
+libmesh_la_OBJECTS = $(am_libmesh_la_OBJECTS)
 DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
 depcomp = $(SHELL) $(top_srcdir)/depcomp
 am__depfiles_maybe = depfiles
@@ -79,8 +71,8 @@ CXXLD = $(CXX)
 CXXLINK = $(LIBTOOL) --tag=CXX $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
 	--mode=link $(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) \
 	$(LDFLAGS) -o $@
-SOURCES = $(libmesh_a_SOURCES)
-DIST_SOURCES = $(libmesh_a_SOURCES)
+SOURCES = $(libmesh_la_SOURCES)
+DIST_SOURCES = $(libmesh_la_SOURCES)
 HEADERS = $(noinst_HEADERS)
 ETAGS = etags
 CTAGS = ctags
@@ -250,13 +242,13 @@ curvedelems_new.hpp hpref_pyramid.hpp meshclass.hpp ruler2.hpp
 
 AM_CPPFLAGS = -I$(top_srcdir)/libsrc/include
 METASOURCES = AUTO
-noinst_LIBRARIES = libmesh.a
-libmesh_a_SOURCES = adfront2.cpp adfront3.cpp bisect.cpp boundarylayer.cpp \
+noinst_LTLIBRARIES = libmesh.la
+libmesh_la_SOURCES = adfront2.cpp adfront3.cpp bisect.cpp boundarylayer.cpp \
 	clusters.cpp curvedelems_new.cpp delaunay.cpp geomsearch.cpp global.cpp \
 	hprefinement.cpp improve2.cpp improve2gen.cpp improve3.cpp localh.cpp meshclass.cpp \
 	meshfunc.cpp meshfunc2d.cpp meshing2.cpp meshing3.cpp meshtool.cpp meshtype.cpp \
 	msghandler.cpp netrule2.cpp netrule3.cpp parser2.cpp parser3.cpp prism2rls.cpp \
-	prism2rls_2.cpp pyramid2rls.cpp pyramidrls.cpp quadrls.cpp refine.cpp ruler2.cpp \
+	pyramid2rls.cpp pyramidrls.cpp quadrls.cpp refine.cpp ruler2.cpp \
 	ruler3.cpp secondorder.cpp smoothing2.5.cpp smoothing2.cpp smoothing3.cpp \
 	specials.cpp tetrarls.cpp topology.cpp triarls.cpp validate.cpp zrefine.cpp
 
@@ -294,12 +286,16 @@ $(top_srcdir)/configure:  $(am__configure_deps)
 $(ACLOCAL_M4):  $(am__aclocal_m4_deps)
 	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
 
-clean-noinstLIBRARIES:
-	-test -z "$(noinst_LIBRARIES)" || rm -f $(noinst_LIBRARIES)
-libmesh.a: $(libmesh_a_OBJECTS) $(libmesh_a_DEPENDENCIES) 
-	-rm -f libmesh.a
-	$(libmesh_a_AR) libmesh.a $(libmesh_a_OBJECTS) $(libmesh_a_LIBADD)
-	$(RANLIB) libmesh.a
+clean-noinstLTLIBRARIES:
+	-test -z "$(noinst_LTLIBRARIES)" || rm -f $(noinst_LTLIBRARIES)
+	@list='$(noinst_LTLIBRARIES)'; for p in $$list; do \
+	  dir="`echo $$p | sed -e 's|/[^/]*$$||'`"; \
+	  test "$$dir" != "$$p" || dir=.; \
+	  echo "rm -f \"$${dir}/so_locations\""; \
+	  rm -f "$${dir}/so_locations"; \
+	done
+libmesh.la: $(libmesh_la_OBJECTS) $(libmesh_la_DEPENDENCIES) 
+	$(CXXLINK)  $(libmesh_la_OBJECTS) $(libmesh_la_LIBADD) $(LIBS)
 
 mostlyclean-compile:
 	-rm -f *.$(OBJEXT)
@@ -307,50 +303,49 @@ mostlyclean-compile:
 distclean-compile:
 	-rm -f *.tab.c
 
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/adfront2.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/adfront3.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/bisect.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/boundarylayer.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/clusters.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/curvedelems_new.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/delaunay.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/geomsearch.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/global.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/hprefinement.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/improve2.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/improve2gen.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/improve3.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/localh.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/meshclass.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/meshfunc.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/meshfunc2d.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/meshing2.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/meshing3.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/meshtool.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/meshtype.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/msghandler.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/netrule2.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/netrule3.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/parser2.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/parser3.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/prism2rls.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/prism2rls_2.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/pyramid2rls.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/pyramidrls.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/quadrls.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/refine.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ruler2.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ruler3.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/secondorder.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/smoothing2.5.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/smoothing2.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/smoothing3.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/specials.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tetrarls.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/topology.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/triarls.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/validate.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/zrefine.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/adfront2.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/adfront3.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/bisect.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/boundarylayer.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/clusters.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/curvedelems_new.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/delaunay.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/geomsearch.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/global.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/hprefinement.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/improve2.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/improve2gen.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/improve3.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/localh.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/meshclass.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/meshfunc.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/meshfunc2d.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/meshing2.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/meshing3.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/meshtool.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/meshtype.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/msghandler.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/netrule2.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/netrule3.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/parser2.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/parser3.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/prism2rls.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/pyramid2rls.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/pyramidrls.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/quadrls.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/refine.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ruler2.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ruler3.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/secondorder.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/smoothing2.5.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/smoothing2.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/smoothing3.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/specials.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/tetrarls.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/topology.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/triarls.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/validate.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/zrefine.Plo@am__quote@
 
 .cpp.o:
 @am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
@@ -454,7 +449,7 @@ distdir: $(DISTFILES)
 	done
 check-am: all-am
 check: check-am
-all-am: Makefile $(LIBRARIES) $(HEADERS)
+all-am: Makefile $(LTLIBRARIES) $(HEADERS)
 installdirs:
 install: install-am
 install-exec: install-exec-am
@@ -482,7 +477,7 @@ maintainer-clean-generic:
 	@echo "it deletes files that may require special tools to rebuild."
 clean: clean-am
 
-clean-am: clean-generic clean-libtool clean-noinstLIBRARIES \
+clean-am: clean-generic clean-libtool clean-noinstLTLIBRARIES \
 	mostlyclean-am
 
 distclean: distclean-am
@@ -542,7 +537,7 @@ uninstall-am:
 .MAKE: install-am install-strip
 
 .PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \
-	clean-libtool clean-noinstLIBRARIES ctags distclean \
+	clean-libtool clean-noinstLTLIBRARIES ctags distclean \
 	distclean-compile distclean-generic distclean-libtool \
 	distclean-tags distdir dvi dvi-am html html-am info info-am \
 	install install-am install-data install-data-am install-dvi \
diff --git a/libsrc/occ/Makefile.am b/libsrc/occ/Makefile.am
index 8aa96411..99cd5caa 100644
--- a/libsrc/occ/Makefile.am
+++ b/libsrc/occ/Makefile.am
@@ -13,8 +13,8 @@ AM_CPPFLAGS = -I$(top_srcdir)/libsrc/include  $(OCCFLAGS)
 
 METASOURCES = AUTO
 
-noinst_LIBRARIES = libocc.a
+noinst_LTLIBRARIES = libocc.la
 
-libocc_a_SOURCES = Partition_Inter2d.cxx Partition_Inter3d.cxx \
+libocc_la_SOURCES = Partition_Inter2d.cxx Partition_Inter3d.cxx \
 	Partition_Loop.cxx Partition_Loop2d.cxx Partition_Loop3d.cxx Partition_Spliter.cxx \
 	occconstruction.cpp occgenmesh.cpp occgeom.cpp occmeshsurf.cpp
diff --git a/libsrc/occ/Makefile.in b/libsrc/occ/Makefile.in
index 5e977ea6..04c4a688 100644
--- a/libsrc/occ/Makefile.in
+++ b/libsrc/occ/Makefile.in
@@ -46,16 +46,13 @@ am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
 CONFIG_HEADER = $(top_builddir)/config.h
 CONFIG_CLEAN_FILES =
-LIBRARIES = $(noinst_LIBRARIES)
-ARFLAGS = cru
-libocc_a_AR = $(AR) $(ARFLAGS)
-libocc_a_LIBADD =
-am_libocc_a_OBJECTS = Partition_Inter2d.$(OBJEXT) \
-	Partition_Inter3d.$(OBJEXT) Partition_Loop.$(OBJEXT) \
-	Partition_Loop2d.$(OBJEXT) Partition_Loop3d.$(OBJEXT) \
-	Partition_Spliter.$(OBJEXT) occconstruction.$(OBJEXT) \
-	occgenmesh.$(OBJEXT) occgeom.$(OBJEXT) occmeshsurf.$(OBJEXT)
-libocc_a_OBJECTS = $(am_libocc_a_OBJECTS)
+LTLIBRARIES = $(noinst_LTLIBRARIES)
+libocc_la_LIBADD =
+am_libocc_la_OBJECTS = Partition_Inter2d.lo Partition_Inter3d.lo \
+	Partition_Loop.lo Partition_Loop2d.lo Partition_Loop3d.lo \
+	Partition_Spliter.lo occconstruction.lo occgenmesh.lo \
+	occgeom.lo occmeshsurf.lo
+libocc_la_OBJECTS = $(am_libocc_la_OBJECTS)
 DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
 depcomp = $(SHELL) $(top_srcdir)/depcomp
 am__depfiles_maybe = depfiles
@@ -68,8 +65,8 @@ CXXLD = $(CXX)
 CXXLINK = $(LIBTOOL) --tag=CXX $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
 	--mode=link $(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) \
 	$(LDFLAGS) -o $@
-SOURCES = $(libocc_a_SOURCES)
-DIST_SOURCES = $(libocc_a_SOURCES)
+SOURCES = $(libocc_la_SOURCES)
+DIST_SOURCES = $(libocc_la_SOURCES)
 HEADERS = $(noinst_HEADERS)
 ETAGS = etags
 CTAGS = ctags
@@ -240,8 +237,8 @@ AM_CPPFLAGS = -I$(top_srcdir)/libsrc/include  $(OCCFLAGS)
 
 # $(OCC_INC_FLAG)
 METASOURCES = AUTO
-noinst_LIBRARIES = libocc.a
-libocc_a_SOURCES = Partition_Inter2d.cxx Partition_Inter3d.cxx \
+noinst_LTLIBRARIES = libocc.la
+libocc_la_SOURCES = Partition_Inter2d.cxx Partition_Inter3d.cxx \
 	Partition_Loop.cxx Partition_Loop2d.cxx Partition_Loop3d.cxx Partition_Spliter.cxx \
 	occconstruction.cpp occgenmesh.cpp occgeom.cpp occmeshsurf.cpp
 
@@ -279,12 +276,16 @@ $(top_srcdir)/configure:  $(am__configure_deps)
 $(ACLOCAL_M4):  $(am__aclocal_m4_deps)
 	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
 
-clean-noinstLIBRARIES:
-	-test -z "$(noinst_LIBRARIES)" || rm -f $(noinst_LIBRARIES)
-libocc.a: $(libocc_a_OBJECTS) $(libocc_a_DEPENDENCIES) 
-	-rm -f libocc.a
-	$(libocc_a_AR) libocc.a $(libocc_a_OBJECTS) $(libocc_a_LIBADD)
-	$(RANLIB) libocc.a
+clean-noinstLTLIBRARIES:
+	-test -z "$(noinst_LTLIBRARIES)" || rm -f $(noinst_LTLIBRARIES)
+	@list='$(noinst_LTLIBRARIES)'; for p in $$list; do \
+	  dir="`echo $$p | sed -e 's|/[^/]*$$||'`"; \
+	  test "$$dir" != "$$p" || dir=.; \
+	  echo "rm -f \"$${dir}/so_locations\""; \
+	  rm -f "$${dir}/so_locations"; \
+	done
+libocc.la: $(libocc_la_OBJECTS) $(libocc_la_DEPENDENCIES) 
+	$(CXXLINK)  $(libocc_la_OBJECTS) $(libocc_la_LIBADD) $(LIBS)
 
 mostlyclean-compile:
 	-rm -f *.$(OBJEXT)
@@ -292,16 +293,16 @@ mostlyclean-compile:
 distclean-compile:
 	-rm -f *.tab.c
 
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/Partition_Inter2d.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/Partition_Inter3d.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/Partition_Loop.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/Partition_Loop2d.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/Partition_Loop3d.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/Partition_Spliter.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/occconstruction.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/occgenmesh.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/occgeom.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/occmeshsurf.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/Partition_Inter2d.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/Partition_Inter3d.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/Partition_Loop.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/Partition_Loop2d.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/Partition_Loop3d.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/Partition_Spliter.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/occconstruction.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/occgenmesh.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/occgeom.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/occmeshsurf.Plo@am__quote@
 
 .cpp.o:
 @am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
@@ -426,7 +427,7 @@ distdir: $(DISTFILES)
 	done
 check-am: all-am
 check: check-am
-all-am: Makefile $(LIBRARIES) $(HEADERS)
+all-am: Makefile $(LTLIBRARIES) $(HEADERS)
 installdirs:
 install: install-am
 install-exec: install-exec-am
@@ -454,7 +455,7 @@ maintainer-clean-generic:
 	@echo "it deletes files that may require special tools to rebuild."
 clean: clean-am
 
-clean-am: clean-generic clean-libtool clean-noinstLIBRARIES \
+clean-am: clean-generic clean-libtool clean-noinstLTLIBRARIES \
 	mostlyclean-am
 
 distclean: distclean-am
@@ -514,7 +515,7 @@ uninstall-am:
 .MAKE: install-am install-strip
 
 .PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \
-	clean-libtool clean-noinstLIBRARIES ctags distclean \
+	clean-libtool clean-noinstLTLIBRARIES ctags distclean \
 	distclean-compile distclean-generic distclean-libtool \
 	distclean-tags distdir dvi dvi-am html html-am info info-am \
 	install install-am install-data install-data-am install-dvi \
diff --git a/libsrc/opti/Makefile.am b/libsrc/opti/Makefile.am
index 19ffbf59..a80f6e37 100644
--- a/libsrc/opti/Makefile.am
+++ b/libsrc/opti/Makefile.am
@@ -2,5 +2,5 @@ noinst_HEADERS = opti.hpp
 
 AM_CPPFLAGS = -I$(top_srcdir)/libsrc/include
 METASOURCES = AUTO
-noinst_LIBRARIES = libopti.a
-libopti_a_SOURCES = bfgs.cpp linopt.cpp linsearch.cpp
+noinst_LTLIBRARIES = libopti.la
+libopti_la_SOURCES = bfgs.cpp linopt.cpp linsearch.cpp
diff --git a/libsrc/opti/Makefile.in b/libsrc/opti/Makefile.in
index f9c8af3c..8aa52862 100644
--- a/libsrc/opti/Makefile.in
+++ b/libsrc/opti/Makefile.in
@@ -46,13 +46,10 @@ am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
 CONFIG_HEADER = $(top_builddir)/config.h
 CONFIG_CLEAN_FILES =
-LIBRARIES = $(noinst_LIBRARIES)
-ARFLAGS = cru
-libopti_a_AR = $(AR) $(ARFLAGS)
-libopti_a_LIBADD =
-am_libopti_a_OBJECTS = bfgs.$(OBJEXT) linopt.$(OBJEXT) \
-	linsearch.$(OBJEXT)
-libopti_a_OBJECTS = $(am_libopti_a_OBJECTS)
+LTLIBRARIES = $(noinst_LTLIBRARIES)
+libopti_la_LIBADD =
+am_libopti_la_OBJECTS = bfgs.lo linopt.lo linsearch.lo
+libopti_la_OBJECTS = $(am_libopti_la_OBJECTS)
 DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
 depcomp = $(SHELL) $(top_srcdir)/depcomp
 am__depfiles_maybe = depfiles
@@ -65,8 +62,8 @@ CXXLD = $(CXX)
 CXXLINK = $(LIBTOOL) --tag=CXX $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
 	--mode=link $(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) \
 	$(LDFLAGS) -o $@
-SOURCES = $(libopti_a_SOURCES)
-DIST_SOURCES = $(libopti_a_SOURCES)
+SOURCES = $(libopti_la_SOURCES)
+DIST_SOURCES = $(libopti_la_SOURCES)
 HEADERS = $(noinst_HEADERS)
 ETAGS = etags
 CTAGS = ctags
@@ -228,8 +225,8 @@ top_srcdir = @top_srcdir@
 noinst_HEADERS = opti.hpp
 AM_CPPFLAGS = -I$(top_srcdir)/libsrc/include
 METASOURCES = AUTO
-noinst_LIBRARIES = libopti.a
-libopti_a_SOURCES = bfgs.cpp linopt.cpp linsearch.cpp
+noinst_LTLIBRARIES = libopti.la
+libopti_la_SOURCES = bfgs.cpp linopt.cpp linsearch.cpp
 all: all-am
 
 .SUFFIXES:
@@ -264,12 +261,16 @@ $(top_srcdir)/configure:  $(am__configure_deps)
 $(ACLOCAL_M4):  $(am__aclocal_m4_deps)
 	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
 
-clean-noinstLIBRARIES:
-	-test -z "$(noinst_LIBRARIES)" || rm -f $(noinst_LIBRARIES)
-libopti.a: $(libopti_a_OBJECTS) $(libopti_a_DEPENDENCIES) 
-	-rm -f libopti.a
-	$(libopti_a_AR) libopti.a $(libopti_a_OBJECTS) $(libopti_a_LIBADD)
-	$(RANLIB) libopti.a
+clean-noinstLTLIBRARIES:
+	-test -z "$(noinst_LTLIBRARIES)" || rm -f $(noinst_LTLIBRARIES)
+	@list='$(noinst_LTLIBRARIES)'; for p in $$list; do \
+	  dir="`echo $$p | sed -e 's|/[^/]*$$||'`"; \
+	  test "$$dir" != "$$p" || dir=.; \
+	  echo "rm -f \"$${dir}/so_locations\""; \
+	  rm -f "$${dir}/so_locations"; \
+	done
+libopti.la: $(libopti_la_OBJECTS) $(libopti_la_DEPENDENCIES) 
+	$(CXXLINK)  $(libopti_la_OBJECTS) $(libopti_la_LIBADD) $(LIBS)
 
 mostlyclean-compile:
 	-rm -f *.$(OBJEXT)
@@ -277,9 +278,9 @@ mostlyclean-compile:
 distclean-compile:
 	-rm -f *.tab.c
 
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/bfgs.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/linopt.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/linsearch.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/bfgs.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/linopt.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/linsearch.Plo@am__quote@
 
 .cpp.o:
 @am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
@@ -383,7 +384,7 @@ distdir: $(DISTFILES)
 	done
 check-am: all-am
 check: check-am
-all-am: Makefile $(LIBRARIES) $(HEADERS)
+all-am: Makefile $(LTLIBRARIES) $(HEADERS)
 installdirs:
 install: install-am
 install-exec: install-exec-am
@@ -411,7 +412,7 @@ maintainer-clean-generic:
 	@echo "it deletes files that may require special tools to rebuild."
 clean: clean-am
 
-clean-am: clean-generic clean-libtool clean-noinstLIBRARIES \
+clean-am: clean-generic clean-libtool clean-noinstLTLIBRARIES \
 	mostlyclean-am
 
 distclean: distclean-am
@@ -471,7 +472,7 @@ uninstall-am:
 .MAKE: install-am install-strip
 
 .PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \
-	clean-libtool clean-noinstLIBRARIES ctags distclean \
+	clean-libtool clean-noinstLTLIBRARIES ctags distclean \
 	distclean-compile distclean-generic distclean-libtool \
 	distclean-tags distdir dvi dvi-am html html-am info info-am \
 	install install-am install-data install-data-am install-dvi \
diff --git a/libsrc/stlgeom/Makefile.am b/libsrc/stlgeom/Makefile.am
index 674ff1a7..b380120c 100644
--- a/libsrc/stlgeom/Makefile.am
+++ b/libsrc/stlgeom/Makefile.am
@@ -3,6 +3,6 @@ stltool.hpp stltopology.hpp
 
 AM_CPPFLAGS = -I$(top_srcdir)/libsrc/include
 METASOURCES = AUTO
-noinst_LIBRARIES = libstl.a
-libstl_a_SOURCES = meshstlsurface.cpp stlgeom.cpp stlgeomchart.cpp \
+noinst_LTLIBRARIES = libstl.la
+libstl_la_SOURCES = meshstlsurface.cpp stlgeom.cpp stlgeomchart.cpp \
 	stlgeommesh.cpp stlline.cpp stltool.cpp stltopology.cpp
diff --git a/libsrc/stlgeom/Makefile.in b/libsrc/stlgeom/Makefile.in
index 7bf2a429..7fae31d1 100644
--- a/libsrc/stlgeom/Makefile.in
+++ b/libsrc/stlgeom/Makefile.in
@@ -46,14 +46,11 @@ am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
 mkinstalldirs = $(SHELL) $(top_srcdir)/mkinstalldirs
 CONFIG_HEADER = $(top_builddir)/config.h
 CONFIG_CLEAN_FILES =
-LIBRARIES = $(noinst_LIBRARIES)
-ARFLAGS = cru
-libstl_a_AR = $(AR) $(ARFLAGS)
-libstl_a_LIBADD =
-am_libstl_a_OBJECTS = meshstlsurface.$(OBJEXT) stlgeom.$(OBJEXT) \
-	stlgeomchart.$(OBJEXT) stlgeommesh.$(OBJEXT) stlline.$(OBJEXT) \
-	stltool.$(OBJEXT) stltopology.$(OBJEXT)
-libstl_a_OBJECTS = $(am_libstl_a_OBJECTS)
+LTLIBRARIES = $(noinst_LTLIBRARIES)
+libstl_la_LIBADD =
+am_libstl_la_OBJECTS = meshstlsurface.lo stlgeom.lo stlgeomchart.lo \
+	stlgeommesh.lo stlline.lo stltool.lo stltopology.lo
+libstl_la_OBJECTS = $(am_libstl_la_OBJECTS)
 DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
 depcomp = $(SHELL) $(top_srcdir)/depcomp
 am__depfiles_maybe = depfiles
@@ -66,8 +63,8 @@ CXXLD = $(CXX)
 CXXLINK = $(LIBTOOL) --tag=CXX $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
 	--mode=link $(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) \
 	$(LDFLAGS) -o $@
-SOURCES = $(libstl_a_SOURCES)
-DIST_SOURCES = $(libstl_a_SOURCES)
+SOURCES = $(libstl_la_SOURCES)
+DIST_SOURCES = $(libstl_la_SOURCES)
 HEADERS = $(noinst_HEADERS)
 ETAGS = etags
 CTAGS = ctags
@@ -231,8 +228,8 @@ stltool.hpp stltopology.hpp
 
 AM_CPPFLAGS = -I$(top_srcdir)/libsrc/include
 METASOURCES = AUTO
-noinst_LIBRARIES = libstl.a
-libstl_a_SOURCES = meshstlsurface.cpp stlgeom.cpp stlgeomchart.cpp \
+noinst_LTLIBRARIES = libstl.la
+libstl_la_SOURCES = meshstlsurface.cpp stlgeom.cpp stlgeomchart.cpp \
 	stlgeommesh.cpp stlline.cpp stltool.cpp stltopology.cpp
 
 all: all-am
@@ -269,12 +266,16 @@ $(top_srcdir)/configure:  $(am__configure_deps)
 $(ACLOCAL_M4):  $(am__aclocal_m4_deps)
 	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
 
-clean-noinstLIBRARIES:
-	-test -z "$(noinst_LIBRARIES)" || rm -f $(noinst_LIBRARIES)
-libstl.a: $(libstl_a_OBJECTS) $(libstl_a_DEPENDENCIES) 
-	-rm -f libstl.a
-	$(libstl_a_AR) libstl.a $(libstl_a_OBJECTS) $(libstl_a_LIBADD)
-	$(RANLIB) libstl.a
+clean-noinstLTLIBRARIES:
+	-test -z "$(noinst_LTLIBRARIES)" || rm -f $(noinst_LTLIBRARIES)
+	@list='$(noinst_LTLIBRARIES)'; for p in $$list; do \
+	  dir="`echo $$p | sed -e 's|/[^/]*$$||'`"; \
+	  test "$$dir" != "$$p" || dir=.; \
+	  echo "rm -f \"$${dir}/so_locations\""; \
+	  rm -f "$${dir}/so_locations"; \
+	done
+libstl.la: $(libstl_la_OBJECTS) $(libstl_la_DEPENDENCIES) 
+	$(CXXLINK)  $(libstl_la_OBJECTS) $(libstl_la_LIBADD) $(LIBS)
 
 mostlyclean-compile:
 	-rm -f *.$(OBJEXT)
@@ -282,13 +283,13 @@ mostlyclean-compile:
 distclean-compile:
 	-rm -f *.tab.c
 
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/meshstlsurface.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/stlgeom.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/stlgeomchart.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/stlgeommesh.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/stlline.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/stltool.Po@am__quote@
-@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/stltopology.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/meshstlsurface.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/stlgeom.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/stlgeomchart.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/stlgeommesh.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/stlline.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/stltool.Plo@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/stltopology.Plo@am__quote@
 
 .cpp.o:
 @am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $(DEPDIR)/$*.Tpo -c -o $@ $<
@@ -392,7 +393,7 @@ distdir: $(DISTFILES)
 	done
 check-am: all-am
 check: check-am
-all-am: Makefile $(LIBRARIES) $(HEADERS)
+all-am: Makefile $(LTLIBRARIES) $(HEADERS)
 installdirs:
 install: install-am
 install-exec: install-exec-am
@@ -420,7 +421,7 @@ maintainer-clean-generic:
 	@echo "it deletes files that may require special tools to rebuild."
 clean: clean-am
 
-clean-am: clean-generic clean-libtool clean-noinstLIBRARIES \
+clean-am: clean-generic clean-libtool clean-noinstLTLIBRARIES \
 	mostlyclean-am
 
 distclean: distclean-am
@@ -480,7 +481,7 @@ uninstall-am:
 .MAKE: install-am install-strip
 
 .PHONY: CTAGS GTAGS all all-am check check-am clean clean-generic \
-	clean-libtool clean-noinstLIBRARIES ctags distclean \
+	clean-libtool clean-noinstLTLIBRARIES ctags distclean \
 	distclean-compile distclean-generic distclean-libtool \
 	distclean-tags distdir dvi dvi-am html html-am info info-am \
 	install install-am install-data install-data-am install-dvi \
diff --git a/libsrc/visualization/Makefile.am b/libsrc/visualization/Makefile.am
index 7fb7e349..f782cd16 100644
--- a/libsrc/visualization/Makefile.am
+++ b/libsrc/visualization/Makefile.am
@@ -7,5 +7,5 @@ AM_CPPFLAGS = -I$(top_srcdir)/libsrc/include  -DOPENGL  $(OCCFLAGS)    $(TCL_INC
 METASOURCES = AUTO
 noinst_LIBRARIES = libvisual.a
 libvisual_a_SOURCES = meshdoc.cpp mvdraw.cpp stlmeshing.cpp vscsg.cpp \
-	vsfieldlines.cpp vsmesh.cpp vsocc.cpp vssolution.cpp
+	vsfieldlines.cpp vsmesh.cpp vsocc.cpp vssolution.cpp importsolution.cpp
 AM_CXXFLAGS = -DOPENGL
diff --git a/libsrc/visualization/Makefile.in b/libsrc/visualization/Makefile.in
index 4b3aacf0..2010628c 100644
--- a/libsrc/visualization/Makefile.in
+++ b/libsrc/visualization/Makefile.in
@@ -52,7 +52,8 @@ libvisual_a_AR = $(AR) $(ARFLAGS)
 libvisual_a_LIBADD =
 am_libvisual_a_OBJECTS = meshdoc.$(OBJEXT) mvdraw.$(OBJEXT) \
 	stlmeshing.$(OBJEXT) vscsg.$(OBJEXT) vsfieldlines.$(OBJEXT) \
-	vsmesh.$(OBJEXT) vsocc.$(OBJEXT) vssolution.$(OBJEXT)
+	vsmesh.$(OBJEXT) vsocc.$(OBJEXT) vssolution.$(OBJEXT) \
+	importsolution.$(OBJEXT)
 libvisual_a_OBJECTS = $(am_libvisual_a_OBJECTS)
 DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
 depcomp = $(SHELL) $(top_srcdir)/depcomp
@@ -242,7 +243,7 @@ AM_CPPFLAGS = -I$(top_srcdir)/libsrc/include  -DOPENGL  $(OCCFLAGS)    $(TCL_INC
 METASOURCES = AUTO
 noinst_LIBRARIES = libvisual.a
 libvisual_a_SOURCES = meshdoc.cpp mvdraw.cpp stlmeshing.cpp vscsg.cpp \
-	vsfieldlines.cpp vsmesh.cpp vsocc.cpp vssolution.cpp
+	vsfieldlines.cpp vsmesh.cpp vsocc.cpp vssolution.cpp importsolution.cpp
 
 AM_CXXFLAGS = -DOPENGL
 all: all-am
@@ -292,6 +293,7 @@ mostlyclean-compile:
 distclean-compile:
 	-rm -f *.tab.c
 
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/importsolution.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/meshdoc.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/mvdraw.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/stlmeshing.Po@am__quote@
diff --git a/libsrc/interface/importsolution.cpp b/libsrc/visualization/importsolution.cpp
similarity index 98%
rename from libsrc/interface/importsolution.cpp
rename to libsrc/visualization/importsolution.cpp
index 4f9d3e67..cf182d71 100644
--- a/libsrc/interface/importsolution.cpp
+++ b/libsrc/visualization/importsolution.cpp
@@ -11,11 +11,11 @@
 #include <csg.hpp>
 #include <meshing.hpp>
 
-#include "nginterface.h"
+#include <nginterface.h>
 
 namespace netgen
 {
-#include "writeuser.hpp"
+
 
 
 void ImportSolution (const char * filename)
diff --git a/libsrc/visualization/vssolution.hpp b/libsrc/visualization/vssolution.hpp
index 139aa496..3dc4c2bc 100644
--- a/libsrc/visualization/vssolution.hpp
+++ b/libsrc/visualization/vssolution.hpp
@@ -6,6 +6,9 @@
 #ifndef SMALLLIB
 #ifndef NOTCL
 
+extern 
+void ImportSolution (const char * filename);
+
 extern int Ng_Vis_Set (ClientData clientData,
 		       Tcl_Interp * interp,
 		       int argc, tcl_const char *argv[]);
diff --git a/ng/Makefile.am b/ng/Makefile.am
index 0d2f5072..9cf31efd 100644
--- a/ng/Makefile.am
+++ b/ng/Makefile.am
@@ -3,15 +3,20 @@ noinst_HEADERS = demoview.hpp
 AM_CPPFLAGS = -I$(top_srcdir)/libsrc/include -I$(top_srcdir)/libsrc/interface -DOPENGL $(OCCFLAGS)  $(TCL_INCLUDES) 
 
 bin_PROGRAMS = netgen
-netgen_SOURCES = demoview.cpp ngappinit.cpp ngpkg.cpp onetcl.cpp
+netgen_SOURCES = demoview.cpp ngappinit.cpp ngpkg.cpp onetcl.cpp nginterface.cpp
 
 
-netgen_LDADD = $(top_builddir)/libsrc/csg/libcsg.a \
-	$(top_builddir)/libsrc/geom2d/libgeom2d.a $(top_builddir)/libsrc/interface/libinterface.a \
-	$(top_builddir)/libsrc/stlgeom/libstl.a $(top_builddir)/libsrc/occ/libocc.a \
-	$(top_builddir)/libsrc/visualization/libvisual.a $(top_builddir)/libsrc/meshing/libmesh.a \
-	$(top_builddir)/libsrc/gprim/libgprim.a $(top_builddir)/libsrc/opti/libopti.a \
-	$(top_builddir)/libsrc/linalg/libla.a $(top_builddir)/libsrc/general/libgeneral.a \
+netgen_LDADD = $(top_builddir)/libsrc/visualization/libvisual.a \
+	$(top_builddir)/libsrc/csg/libcsg.la \
+	$(top_builddir)/libsrc/geom2d/libgeom2d.la \
+	$(top_builddir)/libsrc/interface/libinterface.la \
+	$(top_builddir)/libsrc/stlgeom/libstl.la \
+	$(top_builddir)/libsrc/occ/libocc.la \
+	$(top_builddir)/libsrc/meshing/libmesh.la \
+	$(top_builddir)/libsrc/gprim/libgprim.la \
+	$(top_builddir)/libsrc/opti/libopti.la \
+	$(top_builddir)/libsrc/linalg/libla.la \
+	$(top_builddir)/libsrc/general/libgeneral.la \
 	$(OCCLIBS) $(TOGLLIBDIR) -lTogl1.7 -lGLU $(TK_LIB_SPEC) $(TCL_LIB_SPEC)
 
 
diff --git a/ng/Makefile.in b/ng/Makefile.in
index 28cb52c3..db64f586 100644
--- a/ng/Makefile.in
+++ b/ng/Makefile.in
@@ -52,20 +52,21 @@ am__installdirs = "$(DESTDIR)$(bindir)" "$(DESTDIR)$(bindir)"
 binPROGRAMS_INSTALL = $(INSTALL_PROGRAM)
 PROGRAMS = $(bin_PROGRAMS)
 am_netgen_OBJECTS = demoview.$(OBJEXT) ngappinit.$(OBJEXT) \
-	ngpkg.$(OBJEXT) onetcl.$(OBJEXT)
+	ngpkg.$(OBJEXT) onetcl.$(OBJEXT) nginterface.$(OBJEXT)
 netgen_OBJECTS = $(am_netgen_OBJECTS)
 am__DEPENDENCIES_1 =
-netgen_DEPENDENCIES = $(top_builddir)/libsrc/csg/libcsg.a \
-	$(top_builddir)/libsrc/geom2d/libgeom2d.a \
-	$(top_builddir)/libsrc/interface/libinterface.a \
-	$(top_builddir)/libsrc/stlgeom/libstl.a \
-	$(top_builddir)/libsrc/occ/libocc.a \
+netgen_DEPENDENCIES =  \
 	$(top_builddir)/libsrc/visualization/libvisual.a \
-	$(top_builddir)/libsrc/meshing/libmesh.a \
-	$(top_builddir)/libsrc/gprim/libgprim.a \
-	$(top_builddir)/libsrc/opti/libopti.a \
-	$(top_builddir)/libsrc/linalg/libla.a \
-	$(top_builddir)/libsrc/general/libgeneral.a \
+	$(top_builddir)/libsrc/csg/libcsg.la \
+	$(top_builddir)/libsrc/geom2d/libgeom2d.la \
+	$(top_builddir)/libsrc/interface/libinterface.la \
+	$(top_builddir)/libsrc/stlgeom/libstl.la \
+	$(top_builddir)/libsrc/occ/libocc.la \
+	$(top_builddir)/libsrc/meshing/libmesh.la \
+	$(top_builddir)/libsrc/gprim/libgprim.la \
+	$(top_builddir)/libsrc/opti/libopti.la \
+	$(top_builddir)/libsrc/linalg/libla.la \
+	$(top_builddir)/libsrc/general/libgeneral.la \
 	$(am__DEPENDENCIES_1) $(am__DEPENDENCIES_1) \
 	$(am__DEPENDENCIES_1) $(am__DEPENDENCIES_1)
 netgen_LINK = $(LIBTOOL) --tag=CXX $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
@@ -247,13 +248,18 @@ top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
 noinst_HEADERS = demoview.hpp
 AM_CPPFLAGS = -I$(top_srcdir)/libsrc/include -I$(top_srcdir)/libsrc/interface -DOPENGL $(OCCFLAGS)  $(TCL_INCLUDES) 
-netgen_SOURCES = demoview.cpp ngappinit.cpp ngpkg.cpp onetcl.cpp
-netgen_LDADD = $(top_builddir)/libsrc/csg/libcsg.a \
-	$(top_builddir)/libsrc/geom2d/libgeom2d.a $(top_builddir)/libsrc/interface/libinterface.a \
-	$(top_builddir)/libsrc/stlgeom/libstl.a $(top_builddir)/libsrc/occ/libocc.a \
-	$(top_builddir)/libsrc/visualization/libvisual.a $(top_builddir)/libsrc/meshing/libmesh.a \
-	$(top_builddir)/libsrc/gprim/libgprim.a $(top_builddir)/libsrc/opti/libopti.a \
-	$(top_builddir)/libsrc/linalg/libla.a $(top_builddir)/libsrc/general/libgeneral.a \
+netgen_SOURCES = demoview.cpp ngappinit.cpp ngpkg.cpp onetcl.cpp nginterface.cpp
+netgen_LDADD = $(top_builddir)/libsrc/visualization/libvisual.a \
+	$(top_builddir)/libsrc/csg/libcsg.la \
+	$(top_builddir)/libsrc/geom2d/libgeom2d.la \
+	$(top_builddir)/libsrc/interface/libinterface.la \
+	$(top_builddir)/libsrc/stlgeom/libstl.la \
+	$(top_builddir)/libsrc/occ/libocc.la \
+	$(top_builddir)/libsrc/meshing/libmesh.la \
+	$(top_builddir)/libsrc/gprim/libgprim.la \
+	$(top_builddir)/libsrc/opti/libopti.la \
+	$(top_builddir)/libsrc/linalg/libla.la \
+	$(top_builddir)/libsrc/general/libgeneral.la \
 	$(OCCLIBS) $(TOGLLIBDIR) -lTogl1.7 -lGLU $(TK_LIB_SPEC) $(TCL_LIB_SPEC)
 
 dist_bin_SCRIPTS = dialog.tcl menustat.tcl ngicon.tcl ng.tcl \
@@ -353,6 +359,7 @@ distclean-compile:
 
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/demoview.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ngappinit.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/nginterface.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/ngpkg.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/onetcl.Po@am__quote@
 
diff --git a/libsrc/interface/nginterface.cpp b/ng/nginterface.cpp
similarity index 100%
rename from libsrc/interface/nginterface.cpp
rename to ng/nginterface.cpp
diff --git a/nglib/Makefile.am b/nglib/Makefile.am
new file mode 100644
index 00000000..14d7178e
--- /dev/null
+++ b/nglib/Makefile.am
@@ -0,0 +1,45 @@
+include_HEADERS = nglib.h
+
+AM_CPPFLAGS = -I$(top_srcdir)/libsrc/include $(OCCFLAGS)
+
+lib_LTLIBRARIES = libnglib.la
+libnglib_la_SOURCES = nglib.cpp
+
+libnglib_la_LIBADD = \
+	$(top_builddir)/libsrc/interface/libinterface.la \
+	$(top_builddir)/libsrc/occ/libocc.la \
+	$(top_builddir)/libsrc/geom2d/libgeom2d.la \
+	$(top_builddir)/libsrc/csg/libcsg.la \
+	$(top_builddir)/libsrc/stlgeom/libstl.la \
+	$(top_builddir)/libsrc/meshing/libmesh.la \
+	$(top_builddir)/libsrc/gprim/libgprim.la \
+	$(top_builddir)/libsrc/opti/libopti.la \
+	$(top_builddir)/libsrc/linalg/libla.la \
+	$(top_builddir)/libsrc/general/libgeneral.la  
+
+libnglib_la_LDFLAGS = -avoid-version
+#  -rdynamic
+
+
+bin_PROGRAMS = ng_vol
+ng_vol_SOURCES = ng_vol.cpp
+ng_vol_LDADD = \
+	libnglib.la 
+
+
+#	$(top_builddir)/libsrc/occ/libocc.la 
+#	$(top_builddir)/libsrc/geom2d/libgeom2d.la 
+#	$(top_builddir)/libsrc/csg/libcsg.la 
+#	$(top_builddir)/libsrc/interface/libinterface.la \
+#	$(top_builddir)/libsrc/stlgeom/libstl.la \
+#	$(top_builddir)/libsrc/meshing/libmesh.la 
+#	$(top_builddir)/libsrc/gprim/libgprim.la 
+#	$(top_builddir)/libsrc/opti/libopti.la 
+#	$(top_builddir)/libsrc/linalg/libla.la \
+#	$(top_builddir)/libsrc/general/libgeneral.la  
+
+
+# ng_vol_LDFLAGS = -rdynamic
+
+
+
diff --git a/nglib/ng_vol.cpp b/nglib/ng_vol.cpp
new file mode 100644
index 00000000..bc954b25
--- /dev/null
+++ b/nglib/ng_vol.cpp
@@ -0,0 +1,95 @@
+#include <iostream>
+#include <fstream>
+
+using namespace std;
+
+namespace nglib {
+#include <nglib.h>
+}
+
+int main (int argc, char ** argv)
+{
+  using namespace nglib;
+
+  cout << "Netgen Testing" << endl;
+
+  if (argc < 2)
+    {
+      cerr << "use: ng_vol filename" << endl;
+      return 1;
+    }
+
+
+
+  Ng_Mesh * mesh;
+
+  Ng_Init();
+
+  // creates mesh structure
+  mesh = Ng_NewMesh ();
+
+
+
+
+
+  int i, np, nse, ne;
+  double point[3];
+  int trig[3], tet[4];
+
+
+  // reads surface mesh from file
+  ifstream in(argv[1]);
+
+  in >> np;
+  cout << "Reading " << np  << " points..."; cout.flush();
+  for (i = 1; i <= np; i++)
+    {
+      in >> point[0] >> point[1] >> point[2];
+      Ng_AddPoint (mesh, point);
+    }
+  cout << "done" << endl;
+
+  in >> nse;
+  cout << "Reading " << nse  << " faces..."; cout.flush();
+  for (i = 1; i <= nse; i++)
+    {
+      in >> trig[0] >> trig[1] >> trig[2];
+      Ng_AddSurfaceElement (mesh, NG_TRIG, trig);
+    }
+  cout << "done" << endl;
+
+
+  // generate volume mesh
+  Ng_Meshing_Parameters mp;
+  mp.maxh = 1e6;
+  mp.fineness = 1;
+  mp.secondorder = 0;
+
+  cout << "start meshing" << endl;
+  Ng_GenerateVolumeMesh (mesh, &mp);
+  cout << "meshing done" << endl;
+
+  // volume mesh output
+//   np = Ng_GetNP(mesh);
+//   cout << "Points: " << np << endl;
+
+//   for (i = 1; i <= np; i++)
+//     {
+//       Ng_GetPoint (mesh, i, point);
+//       cout << i << ": " << point[0] << " " << point[1] << " " << point[2] << endl;
+//     }
+
+//   ne = Ng_GetNE(mesh);
+//   cout << "Elements: " << ne << endl;
+//   for (i = 1; i <= ne; i++)
+//     {
+//       Ng_GetVolumeElement (mesh, i, tet);
+//       cout << i << ": " << tet[0] << " " << tet[1] 
+// 	   << " " << tet[2] << " " << tet[3] << endl;
+//     }
+
+  Ng_SaveMesh(mesh,"test.vol");
+
+
+  return 0;
+}
diff --git a/nglib/nglib.cpp b/nglib/nglib.cpp
new file mode 100644
index 00000000..764bcafb
--- /dev/null
+++ b/nglib/nglib.cpp
@@ -0,0 +1,593 @@
+/**************************************************************************/
+/* File:   nglib.cc                                                       */
+/* Author: Joachim Schoeberl                                              */
+/* Date:   7. May. 2000                                                   */
+/**************************************************************************/
+
+/*
+  
+  Interface to the netgen meshing kernel
+  
+*/
+
+
+#include <mystdlib.h>
+#include <myadt.hpp>
+
+#include <linalg.hpp>
+#include <csg.hpp>
+#include <stlgeom.hpp>
+#include <geometry2d.hpp>
+#include <meshing.hpp>
+
+
+
+namespace netgen {
+  extern void MeshFromSpline2D (SplineGeometry2d & geometry,
+				Mesh *& mesh, 
+				MeshingParameters & mp);
+}
+
+
+
+
+namespace nglib {
+#include "nglib.h"
+}
+
+using namespace netgen;
+
+// constants and types:
+
+namespace nglib
+{
+// initialize, deconstruct Netgen library:
+void Ng_Init ()
+{
+  mycout = &cout;
+  myerr = &cerr;
+  testout = new ofstream ("test.out");
+}
+
+void Ng_Exit ()
+{
+  ;
+}
+  
+
+
+Ng_Mesh * Ng_NewMesh ()
+{
+  Mesh * mesh = new Mesh;  
+  mesh->AddFaceDescriptor (FaceDescriptor (1, 1, 0, 1));
+  return (Ng_Mesh*)(void*)mesh;
+}
+
+void Ng_DeleteMesh (Ng_Mesh * mesh)
+{
+  delete (Mesh*)mesh;
+}
+
+
+// feeds points, surface elements and volume elements to the mesh
+void Ng_AddPoint (Ng_Mesh * mesh, double * x)
+{
+  Mesh * m = (Mesh*)mesh;
+  m->AddPoint (Point3d (x[0], x[1], x[2]));
+}
+  
+void Ng_AddSurfaceElement (Ng_Mesh * mesh, Ng_Surface_Element_Type et,
+			   int * pi)
+{
+  Mesh * m = (Mesh*)mesh;
+  Element2d el (3);
+  el.SetIndex (1);
+  el.PNum(1) = pi[0];
+  el.PNum(2) = pi[1];
+  el.PNum(3) = pi[2];
+  m->AddSurfaceElement (el);
+}
+
+void Ng_AddVolumeElement (Ng_Mesh * mesh, Ng_Volume_Element_Type et,
+			  int * pi)
+{
+  Mesh * m = (Mesh*)mesh;
+  Element el (4);
+  el.SetIndex (1);
+  el.PNum(1) = pi[0];
+  el.PNum(2) = pi[1];
+  el.PNum(3) = pi[2];
+  el.PNum(4) = pi[3];
+  m->AddVolumeElement (el);
+}
+
+// ask for number of points, surface and volume elements
+int Ng_GetNP (Ng_Mesh * mesh)
+{
+  return ((Mesh*)mesh) -> GetNP();
+}
+
+int Ng_GetNSE (Ng_Mesh * mesh)
+{
+  return ((Mesh*)mesh) -> GetNSE();
+}
+
+int Ng_GetNE (Ng_Mesh * mesh)
+{
+  return ((Mesh*)mesh) -> GetNE();
+}
+
+
+//  return point coordinates
+void Ng_GetPoint (Ng_Mesh * mesh, int num, double * x)
+{
+  const Point3d & p = ((Mesh*)mesh)->Point(num);
+  x[0] = p.X();
+  x[1] = p.Y();
+  x[2] = p.Z();
+}
+
+// return surface and volume element in pi
+Ng_Surface_Element_Type 
+Ng_GetSurfaceElement (Ng_Mesh * mesh, int num, int * pi)
+{
+  const Element2d & el = ((Mesh*)mesh)->SurfaceElement(num);
+  for (int i = 1; i <= el.GetNP(); i++)
+    pi[i-1] = el.PNum(i);
+  Ng_Surface_Element_Type et;
+  switch (el.GetNP())
+    {
+    case 3: et = NG_TRIG; break;
+    case 4: et = NG_QUAD; break;
+    case 6: et = NG_TRIG6; break;
+    }
+  return et;
+}
+
+Ng_Volume_Element_Type
+Ng_GetVolumeElement (Ng_Mesh * mesh, int num, int * pi)
+{
+  const Element & el = ((Mesh*)mesh)->VolumeElement(num);
+  for (int i = 1; i <= el.GetNP(); i++)
+    pi[i-1] = el.PNum(i);
+  Ng_Volume_Element_Type et;
+  switch (el.GetNP())
+    {
+    case 4: et = NG_TET; break;
+    case 5: et = NG_PYRAMID; break;
+    case 6: et = NG_PRISM; break;
+    case 10: et = NG_TET10; break;
+    }
+  return et;
+}
+
+void Ng_RestrictMeshSizeGlobal (Ng_Mesh * mesh, double h)
+{
+  ((Mesh*)mesh) -> SetGlobalH (h);
+}
+
+void Ng_RestrictMeshSizePoint (Ng_Mesh * mesh, double * p, double h)
+{
+  ((Mesh*)mesh) -> RestrictLocalH (Point3d (p[0], p[1], p[2]), h);
+}
+
+void Ng_RestrictMeshSizeBox (Ng_Mesh * mesh, double * pmin, double * pmax, double h)
+{
+  for (double x = pmin[0]; x < pmax[0]; x += h)
+    for (double y = pmin[1]; y < pmax[1]; y += h)
+      for (double z = pmin[2]; z < pmax[2]; z += h)
+        ((Mesh*)mesh) -> RestrictLocalH (Point3d (x, y, z), h);
+}
+
+
+// generates volume mesh from surface mesh
+Ng_Result Ng_GenerateVolumeMesh (Ng_Mesh * mesh, Ng_Meshing_Parameters * mp)
+{
+  Mesh * m = (Mesh*)mesh;
+  
+  
+  MeshingParameters mparam;
+  mparam.maxh = mp->maxh;
+  mparam.meshsizefilename = mp->meshsize_filename;
+
+  m->CalcLocalH();
+
+  MeshVolume (mparam, *m);
+  RemoveIllegalElements (*m);
+  OptimizeVolume (mparam, *m);
+
+  return NG_OK;
+}
+
+
+
+// 2D Meshing Functions:
+
+
+
+void Ng_AddPoint_2D (Ng_Mesh * mesh, double * x)
+{
+  Mesh * m = (Mesh*)mesh;
+  
+  m->AddPoint (Point3d (x[0], x[1], 0));
+}
+
+void Ng_AddBoundarySeg_2D (Ng_Mesh * mesh, int pi1, int pi2)
+{
+  Mesh * m = (Mesh*)mesh;
+
+  Segment seg;
+  seg.p1 = pi1;
+  seg.p2 = pi2;
+  m->AddSegment (seg);
+}
+  
+
+int Ng_GetNP_2D (Ng_Mesh * mesh)
+{
+  Mesh * m = (Mesh*)mesh;
+  return m->GetNP();
+}
+
+int Ng_GetNE_2D (Ng_Mesh * mesh)
+{
+  Mesh * m = (Mesh*)mesh;
+  return m->GetNSE();
+}
+
+int Ng_GetNSeg_2D (Ng_Mesh * mesh)
+{
+  Mesh * m = (Mesh*)mesh;
+  return m->GetNSeg();
+}
+  
+void Ng_GetPoint_2D (Ng_Mesh * mesh, int num, double * x)
+{
+  Mesh * m = (Mesh*)mesh;
+
+  Point<3> & p = m->Point(num);
+  x[0] = p(0);
+  x[1] = p(1);
+}
+
+void Ng_GetElement_2D (Ng_Mesh * mesh, int num, int * pi, int * matnum)
+{
+  const Element2d & el = ((Mesh*)mesh)->SurfaceElement(num);
+  for (int i = 1; i <= 3; i++)
+    pi[i-1] = el.PNum(i);
+  if (matnum)
+    *matnum = el.GetIndex();
+}
+
+
+void Ng_GetSegment_2D (Ng_Mesh * mesh, int num, int * pi, int * matnum)
+{
+  const Segment & seg = ((Mesh*)mesh)->LineSegment(num);
+  pi[0] = seg.p1;
+  pi[1] = seg.p2;
+
+  if (matnum)
+    *matnum = seg.edgenr;
+}
+
+
+
+
+Ng_Geometry_2D * Ng_LoadGeometry_2D (const char * filename)
+{
+  SplineGeometry2d * geom = new SplineGeometry2d();
+  geom -> Load (filename);
+  return (Ng_Geometry_2D *)geom;
+}
+
+Ng_Result Ng_GenerateMesh_2D (Ng_Geometry_2D * geom,
+			      Ng_Mesh ** mesh,
+			      Ng_Meshing_Parameters * mp)
+{
+  // use global variable mparam
+  //  MeshingParameters mparam;  
+  mparam.maxh = mp->maxh;
+  mparam.meshsizefilename = mp->meshsize_filename;
+  mparam.quad = mp->quad_dominated;
+
+  Mesh * m;
+  MeshFromSpline2D (*(SplineGeometry2d*)geom, m, mparam);
+  
+  cout << m->GetNSE() << " elements, " << m->GetNP() << " points" << endl;
+  
+  *mesh = (Ng_Mesh*)m;
+  return NG_OK;
+}
+
+void Ng_HP_Refinement (Ng_Geometry_2D * geom,
+		       Ng_Mesh * mesh,
+		       int levels)
+{
+  Refinement2d ref(*(SplineGeometry2d*)geom);
+  HPRefinement (*(Mesh*)mesh, &ref, levels);
+}
+
+void Ng_HP_Refinement (Ng_Geometry_2D * geom,
+		       Ng_Mesh * mesh,
+		       int levels, double parameter)
+{
+  Refinement2d ref(*(SplineGeometry2d*)geom);
+  HPRefinement (*(Mesh*)mesh, &ref, levels, parameter);
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ARRAY<STLReadTriangle> readtrias; //only before initstlgeometry
+ARRAY<Point<3> > readedges; //only before init stlgeometry
+ 
+void Ng_SaveMesh(Ng_Mesh * mesh, const char* filename)
+{
+  ((Mesh*)mesh)->Save(filename);
+}
+
+Ng_Mesh * Ng_LoadMesh(const char* filename)
+{
+  Mesh * mesh = new Mesh;
+  mesh->Load(filename);
+  return ( (Ng_Mesh*)mesh );
+}
+
+// loads geometry from STL file
+Ng_STL_Geometry * Ng_STL_LoadGeometry (const char * filename, int binary)
+{
+  int i;
+  STLGeometry geom;
+  STLGeometry* geo;
+  ifstream ist(filename);
+
+  if (binary)
+    {
+      geo = geom.LoadBinary(ist);
+    }
+  else
+    {
+      geo = geom.Load(ist);
+    }
+
+  readtrias.SetSize(0);
+  readedges.SetSize(0);
+
+  Point3d p;
+  Vec3d normal;
+  double p1[3];
+  double p2[3];
+  double p3[3];
+  double n[3];
+
+  Ng_STL_Geometry * geo2 = Ng_STL_NewGeometry();
+
+  for (i = 1; i <= geo->GetNT(); i++)
+    {
+      const STLTriangle& t = geo->GetTriangle(i);
+      p = geo->GetPoint(t.PNum(1));
+      p1[0] = p.X(); p1[1] = p.Y(); p1[2] = p.Z(); 
+      p = geo->GetPoint(t.PNum(2));
+      p2[0] = p.X(); p2[1] = p.Y(); p2[2] = p.Z(); 
+      p = geo->GetPoint(t.PNum(3));
+      p3[0] = p.X(); p3[1] = p.Y(); p3[2] = p.Z();
+      normal = t.Normal();
+      n[0] = normal.X(); n[1] = normal.Y(); n[2] = normal.Z();
+      
+      Ng_STL_AddTriangle(geo2, p1, p2, p3, n);
+    }
+
+  return geo2;
+}
+
+// generate new STL Geometry
+Ng_STL_Geometry * Ng_STL_NewGeometry ()
+{
+  return (Ng_STL_Geometry*)(void*)new STLGeometry;
+} 
+
+// after adding triangles (and edges) initialize
+Ng_Result Ng_STL_InitSTLGeometry (Ng_STL_Geometry * geom)
+{
+  STLGeometry* geo = (STLGeometry*)geom;
+  geo->InitSTLGeometry(readtrias);
+  readtrias.SetSize(0);
+
+  if (readedges.Size() != 0)
+    {
+      int i;
+      /*
+      for (i = 1; i <= readedges.Size(); i+=2)
+	{
+	  cout << "e(" << readedges.Get(i) << "," << readedges.Get(i+1) << ")" << endl;
+	}
+      */
+      geo->AddEdges(readedges);
+    }
+
+  if (geo->GetStatus() == STLTopology::STL_GOOD || geo->GetStatus() == STLTopology::STL_WARNING) return NG_OK;
+  return NG_SURFACE_INPUT_ERROR;
+}
+
+  // automatically generates edges:
+Ng_Result Ng_STL_MakeEdges (Ng_STL_Geometry * geom,
+		       Ng_Mesh* mesh,
+		       Ng_Meshing_Parameters * mp)
+{
+  STLGeometry* stlgeometry = (STLGeometry*)geom;
+  Mesh* me = (Mesh*)mesh;
+  
+  MeshingParameters mparam;
+
+  mparam.maxh = mp->maxh;
+  mparam.meshsizefilename = mp->meshsize_filename;
+
+  me -> SetGlobalH (mparam.maxh);
+  me -> SetLocalH (stlgeometry->GetBoundingBox().PMin() - Vec3d(10, 10, 10),
+		   stlgeometry->GetBoundingBox().PMax() + Vec3d(10, 10, 10),
+		   0.3);
+
+  me -> LoadLocalMeshSize (mp->meshsize_filename);
+  /*
+  if (mp->meshsize_filename)
+    {
+      ifstream infile (mp->meshsize_filename);
+      if (!infile.good()) return NG_FILE_NOT_FOUND;
+      me -> LoadLocalMeshSize (infile);
+    }
+  */
+
+  STLMeshing (*stlgeometry, *me);
+  
+  stlgeometry->edgesfound = 1;
+  stlgeometry->surfacemeshed = 0;
+  stlgeometry->surfaceoptimized = 0;
+  stlgeometry->volumemeshed = 0;
+  
+  return NG_OK;
+}
+
+  
+// generates mesh, empty mesh be already created.
+Ng_Result Ng_STL_GenerateSurfaceMesh (Ng_STL_Geometry * geom,
+				      Ng_Mesh* mesh,
+				      Ng_Meshing_Parameters * mp)
+{
+  STLGeometry* stlgeometry = (STLGeometry*)geom;
+  Mesh* me = (Mesh*)mesh;
+
+  MeshingParameters mparam;
+
+  mparam.maxh = mp->maxh;
+  mparam.meshsizefilename = mp->meshsize_filename;
+
+  /*
+  me -> SetGlobalH (mparam.maxh);
+  me -> SetLocalH (stlgeometry->GetBoundingBox().PMin() - Vec3d(10, 10, 10),
+		   stlgeometry->GetBoundingBox().PMax() + Vec3d(10, 10, 10),
+		   0.3);
+  */
+  /*
+  STLMeshing (*stlgeometry, *me);
+  
+  stlgeometry->edgesfound = 1;
+  stlgeometry->surfacemeshed = 0;
+  stlgeometry->surfaceoptimized = 0;
+  stlgeometry->volumemeshed = 0;
+  */  
+  int retval = STLSurfaceMeshing (*stlgeometry, *me);
+  if (retval == MESHING3_OK)
+    {
+      (*mycout) << "Success !!!!" << endl;
+      stlgeometry->surfacemeshed = 1;
+      stlgeometry->surfaceoptimized = 0;
+      stlgeometry->volumemeshed = 0;
+    } 
+  else if (retval == MESHING3_OUTERSTEPSEXCEEDED)
+    {
+      (*mycout) << "ERROR: Give up because of too many trials. Meshing aborted!" << endl;
+    }
+  else if (retval == MESHING3_TERMINATE)
+    {
+      (*mycout) << "Meshing Stopped!" << endl;
+    }
+  else
+    {
+      (*mycout) << "ERROR: Surface meshing not successful. Meshing aborted!" << endl;
+    }
+
+
+  STLSurfaceOptimization (*stlgeometry, *me, mparam);
+
+  return NG_OK;
+}
+
+
+  // fills STL Geometry
+  // positive orientation
+  // normal vector may be null-pointer
+void Ng_STL_AddTriangle (Ng_STL_Geometry * geom, 
+			 double * p1, double * p2, double * p3, double * nv)
+{
+  Point<3> apts[3];
+  apts[0] = Point<3>(p1[0],p1[1],p1[2]);
+  apts[1] = Point<3>(p2[0],p2[1],p2[2]);
+  apts[2] = Point<3>(p3[0],p3[1],p3[2]);
+
+  Vec<3> n;
+  if (!nv)
+    n = Cross (apts[0]-apts[1], apts[0]-apts[2]);
+  else
+    n = Vec<3>(nv[0],nv[1],nv[2]);
+
+  readtrias.Append(STLReadTriangle(apts,n));
+}
+
+  // add (optional) edges:
+void Ng_STL_AddEdge (Ng_STL_Geometry * geom, 
+		     double * p1, double * p2)
+{
+  readedges.Append(Point3d(p1[0],p1[1],p1[2]));
+  readedges.Append(Point3d(p2[0],p2[1],p2[2]));
+}
+
+
+
+Ng_Meshing_Parameters :: Ng_Meshing_Parameters()
+{
+  maxh = 1000;
+  fineness = 0.5;
+  secondorder = 0;
+  meshsize_filename = 0;
+  quad_dominated = 0;
+}
+
+
+}
+
+
+// compatibility functions:
+
+namespace netgen 
+{
+
+  char geomfilename[255];
+
+void MyError (const char * ch)
+{
+  cerr << ch;
+}
+
+//Destination for messages, errors, ...
+void Ng_PrintDest(const char * s)
+{
+  (*mycout) << s << flush;
+}
+
+double GetTime ()
+{
+  return 0;
+}
+
+void ResetTime ()
+{
+  ;
+}
+
+void MyBeep (int i)
+{
+  ;
+}
+
+}
diff --git a/nglib/nglib.h b/nglib/nglib.h
new file mode 100644
index 00000000..8c6285f6
--- /dev/null
+++ b/nglib/nglib.h
@@ -0,0 +1,221 @@
+#ifndef NGLIB
+#define NGLIB
+
+/**************************************************************************/
+/* File:   nglib.hh                                                       */
+/* Author: Joachim Schoeberl                                              */
+/* Date:   7. May. 2000                                                   */
+/**************************************************************************/
+
+/*
+  
+Interface to the netgen meshing kernel
+  
+*/
+
+/// Data type for NETGEN mesh
+typedef void * Ng_Mesh;
+
+/// Data type for NETGEN CSG geomty
+typedef void * Ng_CSG_Geometry;
+
+/// Data type for NETGEN 2D geomty
+typedef void * Ng_Geometry_2D;
+
+/// Data type for NETGEN STL geomty
+typedef void * Ng_STL_Geometry;
+
+
+
+// max number of nodes per element
+#define NG_VOLUME_ELEMENT_MAXPOINTS 10
+
+// implemented element types:
+enum Ng_Volume_Element_Type { NG_TET = 1, NG_PYRAMID = 2, NG_PRISM = 3,
+                              NG_TET10 = 4 };
+
+// max number of nodes per surface element
+#define NG_SURFACE_ELEMENT_MAXPOINTS 6
+
+// implemented element types:
+enum Ng_Surface_Element_Type { NG_TRIG = 1, NG_QUAD = 2, 
+			       NG_TRIG6 = 3 };
+
+
+
+class Ng_Meshing_Parameters 
+{
+ public:
+  
+  double maxh;
+  double fineness;   // 0 .. coarse, 1 .. fine
+  int secondorder;
+  char * meshsize_filename;
+  int quad_dominated;
+
+  Ng_Meshing_Parameters();
+};
+
+
+enum Ng_Result { NG_OK = 0, 
+		 NG_SURFACE_INPUT_ERROR = 1,
+		 NG_VOLUME_FAILURE = 2, 
+		 NG_STL_INPUT_ERROR = 3,
+		 NG_SURFACE_FAILURE = 4,
+		 NG_FILE_NOT_FOUND = 5 };
+
+
+
+
+  
+// initialize, deconstruct Netgen library:
+void Ng_Init ();
+void Ng_Exit ();
+  
+
+
+// Generates new mesh structure
+Ng_Mesh * Ng_NewMesh ();
+void Ng_DeleteMesh (Ng_Mesh * mesh);
+  
+// feeds points, surface elements and volume elements to the mesh
+void Ng_AddPoint (Ng_Mesh * mesh, double * x);
+void Ng_AddSurfaceElement (Ng_Mesh * mesh, Ng_Surface_Element_Type et,
+                           int * pi);
+void Ng_AddVolumeElement (Ng_Mesh * mesh, Ng_Volume_Element_Type et,
+                          int * pi);
+  
+// ask for number of points, surface and volume elements
+int Ng_GetNP (Ng_Mesh * mesh);
+int Ng_GetNSE (Ng_Mesh * mesh);
+int Ng_GetNE (Ng_Mesh * mesh);
+
+  
+//  return point coordinates
+void Ng_GetPoint (Ng_Mesh * mesh, int num, double * x);
+
+// return surface and volume element in pi
+Ng_Surface_Element_Type 
+Ng_GetSurfaceElement (Ng_Mesh * mesh, int num, int * pi);
+
+Ng_Volume_Element_Type
+Ng_GetVolumeElement (Ng_Mesh * mesh, int num, int * pi);
+
+
+// Defines MeshSize Functions
+void Ng_RestrictMeshSizeGlobal (Ng_Mesh * mesh, double h);
+void Ng_RestrictMeshSizePoint (Ng_Mesh * mesh, double * p, double h);
+void Ng_RestrictMeshSizeBox (Ng_Mesh * mesh, double * pmin, double * pmax, double h);
+  
+// generates volume mesh from surface mesh
+Ng_Result Ng_GenerateVolumeMesh (Ng_Mesh * mesh, Ng_Meshing_Parameters * mp);
+
+void Ng_SaveMesh(Ng_Mesh * mesh, const char* filename);
+Ng_Mesh * Ng_LoadMesh(const char* filename);
+
+
+
+
+
+// **********************************************************
+// **   2D Meshing                                         **
+// **********************************************************
+
+
+// feeds points and boundary to mesh
+
+void Ng_AddPoint_2D (Ng_Mesh * mesh, double * x);
+void Ng_AddBoundarySeg_2D (Ng_Mesh * mesh, int pi1, int pi2);
+  
+// ask for number of points, elements and boundary segments
+int Ng_GetNP_2D (Ng_Mesh * mesh);
+int Ng_GetNE_2D (Ng_Mesh * mesh);
+int Ng_GetNSeg_2D (Ng_Mesh * mesh);
+  
+//  return point coordinates
+void Ng_GetPoint_2D (Ng_Mesh * mesh, int num, double * x);
+
+// return 2d triangles
+void Ng_GetElement_2D (Ng_Mesh * mesh, int num, int * pi, int * matnum = NULL);
+
+// return 2d boundary segment
+void Ng_GetSegment_2D (Ng_Mesh * mesh, int num, int * pi, int * matnum = NULL);
+
+
+// load 2d netgen spline geometry
+Ng_Geometry_2D * Ng_LoadGeometry_2D (const char * filename);
+
+// generate 2d mesh, mesh is allocated by function
+Ng_Result Ng_GenerateMesh_2D (Ng_Geometry_2D * geom,
+                              Ng_Mesh ** mesh,
+                              Ng_Meshing_Parameters * mp);
+  
+void Ng_HP_Refinement (Ng_Geometry_2D * geom,
+                       Ng_Mesh * mesh,
+                       int levels);
+  
+
+
+
+
+// **********************************************************
+// **   STL Meshing                                        **
+// **********************************************************
+
+
+// loads geometry from STL file
+Ng_STL_Geometry * Ng_STL_LoadGeometry (const char * filename, int binary = 0);
+
+
+// generate new STL Geometry
+Ng_STL_Geometry * Ng_STL_NewGeometry ();
+  
+
+// fills STL Geometry
+// positive orientation
+// normal vector may be null-pointer
+void Ng_STL_AddTriangle (Ng_STL_Geometry * geom, 
+                         double * p1, double * p2, double * p3, 
+                         double * nv = NULL);
+
+// add (optional) edges :
+void Ng_STL_AddEdge (Ng_STL_Geometry * geom, 
+                     double * p1, double * p2);
+
+// after adding triangles (and edges) initialize
+Ng_Result Ng_STL_InitSTLGeometry (Ng_STL_Geometry * geom);
+
+// automatically generates edges:
+Ng_Result Ng_STL_MakeEdges (Ng_STL_Geometry * geom,
+                            Ng_Mesh* mesh,
+                            Ng_Meshing_Parameters * mp);
+
+
+// generates mesh, empty mesh must be already created.
+Ng_Result Ng_STL_GenerateSurfaceMesh (Ng_STL_Geometry * geom,
+                                      Ng_Mesh * mesh,
+                                      Ng_Meshing_Parameters * mp);
+
+
+#ifdef ACIS
+
+// **********************************************************
+// **   ACIS Meshing                                       **
+// **********************************************************
+
+/// Data type for NETGEN STL geomty
+typedef void * Ng_ACIS_Geometry;
+
+// loads geometry from STL file
+Ng_ACIS_Geometry * Ng_ACIS_LoadGeometry (const char * filename);
+  
+// generates mesh, empty mesh must be already created.
+Ng_Result Ng_ACIS_GenerateSurfaceMesh (Ng_ACIS_Geometry * geom,
+                                       Ng_Mesh * mesh,
+                                       Ng_Meshing_Parameters * mp);
+
+
+#endif
+
+
+#endif
\ No newline at end of file