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diff --git a/CMakeLists.txt b/CMakeLists.txt
index 49be67d..ef69fa6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -66,6 +66,7 @@ check_prototype_definition (cosl "long double cosl( long double arg )" "0" math.
check_prototype_definition (sinl "long double sinl( long double arg )" "0" math.h HAVE_DECL_SINL)
check_prototype_definition (memalign "void *memalign(size_t alignment, size_t size)" "0" malloc.h HAVE_DECL_MEMALIGN)
check_prototype_definition (posix_memalign "int posix_memalign(void **memptr, size_t alignment, size_t size)" "0" stdlib.h HAVE_DECL_POSIX_MEMALIGN)
+check_prototype_definition (_aligned_malloc "void* __cdecl _aligned_malloc(size_t _Size, size_t _Alignment)" "0" malloc.h HAVE_DECL_ALIGNED_MALLOC)
include (CheckSymbolExists)
check_symbol_exists (clock_gettime time.h HAVE_CLOCK_GETTIME)
@@ -75,6 +76,7 @@ check_symbol_exists (drand48 stdlib.h HAVE_DRAND48)
check_symbol_exists (srand48 stdlib.h HAVE_SRAND48)
check_symbol_exists (memalign malloc.h HAVE_MEMALIGN)
check_symbol_exists (posix_memalign stdlib.h HAVE_POSIX_MEMALIGN)
+check_symbol_exists (_aligned_malloc malloc.h HAVE_ALIGNED_MALLOC)
check_symbol_exists (mach_absolute_time mach/mach_time.h HAVE_MACH_ABSOLUTE_TIME)
check_symbol_exists (alloca alloca.h HAVE_ALLOCA)
if (NOT HAVE_ALLOCA)
@@ -131,6 +133,7 @@ endif ()
include (CheckCCompilerFlag)
+#All those checks fail due to linkage errors so we directly set HAVE_<ARCH> in the PORTFILE! We assume the user knows what (s)he is doing!
if (ENABLE_SSE)
foreach (FLAG "-msse" "/arch:SSE")
unset (HAVE_SSE CACHE)
@@ -180,8 +183,9 @@ if (ENABLE_AVX2)
endif ()
# AVX2 codelets require FMA support as well
+# AVX2 implicitly includes FMA using Visual Studio (also definition __FMA__ is not set)
if (ENABLE_AVX2)
- foreach (FLAG "-mfma" "/arch:FMA")
+ foreach (FLAG "-mfma" "/arch:AVX2")
unset (HAVE_FMA CACHE)
unset (HAVE_FMA)
check_c_compiler_flag (${FLAG} HAVE_FMA)
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