diff --git a/CMake/cmake_config.h.in b/CMake/cmake_config.h.in
index ea4742a59c..3106478b12 100644
--- a/CMake/cmake_config.h.in
+++ b/CMake/cmake_config.h.in
@@ -21,13 +21,6 @@
 #cmakedefine FLINT_HAVE_FFT_SMALL
 
 #ifdef _MSC_VER
-# define access _access
-# define strcasecmp _stricmp
-# define strncasecmp	_strnicmp
-# define alloca _alloca
-# define MSC_C_(x) #x  
-# define MSC_CC_(x)  MSC_C_(x)
-# define MSC_VERSION "Microsoft C++ (Version " MSC_CC_(_MSC_FULL_VER) ")"
 # if defined(FLINT_BUILD_DLL)
 #  define FLINT_DLL __declspec(dllexport)
 # else