diff --git a/client/Makefile b/client/Makefile
index afff83845..a53903dd6 100644
--- a/client/Makefile
+++ b/client/Makefile
@@ -210,7 +210,16 @@ MULTIARCHOBJS = $(MULTIARCHSRCS:%.c=$(OBJDIR)/%_NOSIMD.o) \
 			$(MULTIARCHSRCS:%.c=$(OBJDIR)/%_AVX.o) \
 			$(MULTIARCHSRCS:%.c=$(OBJDIR)/%_AVX2.o)
 
-SUPPORTS_AVX512 :=  $(shell echo | gcc -E -mavx512f - &> /dev/null && echo "True" )
+#GCC_GTEQ_490 := $(shell expr `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\}$$/&00/'` \>= 40900)
+GCC_VERSION := $(shell gcc --version | awk '/gcc/{print $$NF;}' | sed -e 's/\-.*//g' -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 -e 's/\-.*//g' '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
+
 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