diff --git a/libsrc/core/simd.hpp b/libsrc/core/simd.hpp
index 22be7bb1..d5a6341f 100644
--- a/libsrc/core/simd.hpp
+++ b/libsrc/core/simd.hpp
@@ -36,23 +36,23 @@
 
 namespace ngcore
 {
-  /*
 #ifndef __CUDA_ARCH__
 #ifdef NETGEN_ARCH_AMD64
+  /*
   NETGEN_INLINE auto HSum (SIMD<double,2> v1, SIMD<double,2> v2, SIMD<double,2> v3, SIMD<double,2> v4)
   {
     SIMD<double,2> hsum1 = my_mm_hadd_pd (v1.Data(), v2.Data());
     SIMD<double,2> hsum2 = my_mm_hadd_pd (v3.Data(), v4.Data());
     return SIMD<double,4> (hsum1, hsum2);
   }
-
+  */
+  
   NETGEN_INLINE auto GetMaskFromBits( unsigned int i )
   {
     return SIMD<mask64>::GetMaskFromBits(i);
   }
 #endif
 #endif // __CUDA_ARCH__
-  */
   
   NETGEN_INLINE void SIMDTranspose (SIMD<double,4> a1, SIMD<double,4> a2, SIMD <double,4> a3, SIMD<double,4> a4,
                                     SIMD<double,4> & b1, SIMD<double,4> & b2, SIMD<double,4> & b3, SIMD<double,4> & b4)
diff --git a/libsrc/general/autoptr.hpp b/libsrc/general/autoptr.hpp
index 3de595ad..6089ea50 100644
--- a/libsrc/general/autoptr.hpp
+++ b/libsrc/general/autoptr.hpp
@@ -1,3 +1,5 @@
+braucht man nicht mehr
+
 #ifndef FILE_AUTOPTR
 #define FILE_AUTOPTR
 
diff --git a/libsrc/general/myadt.hpp b/libsrc/general/myadt.hpp
index d117d55d..871de4f1 100644
--- a/libsrc/general/myadt.hpp
+++ b/libsrc/general/myadt.hpp
@@ -38,7 +38,7 @@ namespace netgen
 
 #include "seti.hpp"
 #include "optmem.hpp"
-#include "autoptr.hpp"
+// #include "autoptr.hpp"
 #include "sort.hpp"
 #include "stack.hpp"
 #include "mystring.hpp"