From: pwpiwi <pwpiwi@users.noreply.github.com>
Date: Tue, 5 Dec 2017 07:25:10 +0000 (+0100)
Subject: fix: AVX512 detection
X-Git-Tag: v3.1.0~110^2
X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/commitdiff_plain/c656c870ae9a4ab52874f945748065227cdb1ad7

fix: AVX512 detection
---

diff --git a/client/Makefile b/client/Makefile
index 5df99de7..b9f5e78b 100644
--- 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