From 20463e956e9e7431f968e09d71f95cb58bccb7b4 Mon Sep 17 00:00:00 2001
From: prascle <prascle>
Date: Thu, 12 Jun 2003 10:38:56 +0000
Subject: [PATCH] PR: avoids unnecessary compilation after regeneration of
 SALOMEconfig.h, with gcc3.2

---
 Makefile.in | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/Makefile.in b/Makefile.in
index e6d9a7669..0fad469f3 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -135,10 +135,19 @@ endif
 
 inc: idl $(include_list)
 
-include/salome/SALOMEconfig.h: salome_adm/unix/SALOMEconfig.h
+include/salome/SALOMEconfig.h: salome_adm/unix/SALOMEconfig.ref
 	-$(RM) $@
 	$(LN_S) ../../$< $@
 
+# test if SALOMEconfig.h has changed (contents)
+salome_adm/unix/SALOMEconfig.ref: salome_adm/unix/SALOMEconfig.h
+	@if ! [ -a $@ ]; then \
+	  cp -p $< $@;        \
+	fi;		      \
+	if ! cmp $< $@; then  \
+	  cp -p $< $@;        \
+	fi;		      \
+
 include/salome/sstream: salome_adm/unix/sstream
 	-$(RM) $@
 	$(LN_S) ../../$< $@