From cb65fe1439de4be32b41d02f19f0a619a592d444 Mon Sep 17 00:00:00 2001
From: Tony Theodore <tonyt@logyst.com>
Date: Wed, 6 Dec 2017 12:50:24 +1100
Subject: hyperscan: fix build where native SSSE3 detection fails
closes #1997
---
src/hyperscan.mk | 14 ++++++++++++--
1 file changed, 12 insertions(+), 2 deletions(-)
diff --git a/src/hyperscan.mk b/src/hyperscan.mk
index cbea2f0..5179b54 100644
--- a/src/hyperscan.mk
+++ b/src/hyperscan.mk
@@ -10,12 +10,22 @@ $(PKG)_GH_CONF := 01org/hyperscan/tags, v
$(PKG)_DEPS := gcc boost
# $(PKG)_NATIVE_DEPS := ragel
+# Add the following options to run on (virtual) machine without AVX2 or
+# build on machine where native detection of SSSE3 may fail
+# -DCMAKE_C_FLAGS="-march=core2" -DCMAKE_CXX_FLAGS="-march=core2"
+
+$(PKG)_ARCH_FLAGS = \
+ $(TARGET)-gcc -xc /dev/null -o- -S -fverbose-asm \
+ -march=native | \
+ grep mssse3 >/dev/null 2>&1 || \
+ echo -march=core2
+
define $(PKG)_BUILD
- # Add the following options to run on (virtual) machine without AVX2
- # -DCMAKE_C_FLAGS="-march=core2" -DCMAKE_CXX_FLAGS="-march=core2"
cd '$(BUILD_DIR)' && $(TARGET)-cmake \
-DRAGEL='$(PREFIX)/$(BUILD)/bin/ragel' \
-DMXE_DISABLE_INCLUDE_SYSTEM_FLAG=TRUE \
+ -DCMAKE_C_FLAGS="`$($(PKG)_ARCH_FLAGS)`" \
+ -DCMAKE_CXX_FLAGS="`$($(PKG)_ARCH_FLAGS)`" \
'$(SOURCE_DIR)'
$(MAKE) -C '$(BUILD_DIR)' -j '$(JOBS)'
$(MAKE) -C '$(BUILD_DIR)' -j 1 install
--
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