fix: AVX512 detection

diff --git a/client/Makefile b/client/Makefile
index 5df99de775ad6da7cfb8cf41eeea4ab58553a09c..b9f5e78ba464ce20f24e35268590a50c97c8e910 100644 (file)
--- a/client/Makefile
+++ b/client/Makefile
@@ -192,14 +192,7 @@ MULTIARCHOBJS = $(MULTIARCHSRCS:%.c=$(OBJDIR)/%_NOSIMD.o) \
                        $(MULTIARCHSRCS:%.c=$(OBJDIR)/%_AVX.o) \
                        $(MULTIARCHSRCS:%.c=$(OBJDIR)/%_AVX2.o)
 
-GCC_VERSION := $(shell gcc --version | awk '/gcc/{print $$NF;}' | sed -e 's/\.\([0-9][0-9]\)/\1/g' -e 's/\.\([0-9]\)/0\1/g' -e 's/^[0-9]\{3,4\}$$/&00/')
-CLANG_VERSION := $(shell gcc --version | awk '/Apple LLVM version/{print $$4;}' | sed -e 's/\.\([0-9][0-9]\)/\1/g' -e 's/\.\([0-9]\)/0\1/g' -e 's/^[0-9]\{3,4\}$$/&00/')
-ifneq ($(CLANG_VERSION), )
-       SUPPORTS_AVX512 :=  $(shell [ $(CLANG_VERSION) -ge 80000 ] && echo "True" )
-endif
-ifneq ($(GCC_VERSION), )
-       SUPPORTS_AVX512 :=  $(shell [ $(GCC_VERSION) -ge 40900 ] && echo "True" )
-endif
+SUPPORTS_AVX512 :=  $(shell echo | gcc -E -mavx512f - &> /dev/null && echo "True" )
 HARD_SWITCH_NOSIMD = -mno-mmx -mno-sse2 -mno-avx -mno-avx2
 HARD_SWITCH_MMX = -mmmx -mno-sse2 -mno-avx -mno-avx2
 HARD_SWITCH_SSE2 = -mmmx -msse2 -mno-avx -mno-avx2