vcpkg/ports/fftw3/fftw3_arch_fix.patch
kjpus bd795cb040 [fftw3] Fix SIMD compiler flag and mingw build failure (#9794)
* [fftw3] Fix SIMD compiler flag and mingw build failure

* Use vcpkg_check_features and single ENABLE_[SIMD]
2020-01-27 11:53:59 -08:00

41 lines
1.8 KiB
Diff

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 95bd537a..245acc8f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -66,6 +66,8 @@
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 +77,7 @@
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 +131,7 @@ 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)
@@ -176,8 +177,9 @@ 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)
check_c_compiler_flag (${FLAG} HAVE_FMA)
if (HAVE_FMA)