From: Matthew Barr <matthew.barr@intel.com>
Date: Wed, 22 Jun 2016 05:03:22 +0000 (+1000)
Subject: Disable strict aliasing
X-Git-Tag: v4.3.0^2~95
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f9ded5936173fb97fb0d5e5943d87fb91a114b51;p=thirdparty%2Fvectorscan.git

Disable strict aliasing

Strict aliasing allows to compiler to make some optimisations, but they aren't
without risk. The benefits do not appear to be worth the risk.
---

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2652cea3..1b6e0e94 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -173,8 +173,8 @@ else()
     endif()
 
     # set compiler flags - more are tested and added later
-    set(EXTRA_C_FLAGS "-std=c99 -Wall -Wextra -Wshadow -Wcast-qual")
-    set(EXTRA_CXX_FLAGS "-std=c++11 -Wall -Wextra -Wno-shadow -Wswitch -Wreturn-type -Wcast-qual -Wno-deprecated -Wnon-virtual-dtor")
+    set(EXTRA_C_FLAGS "-std=c99 -Wall -Wextra -Wshadow -Wcast-qual -fno-strict-aliasing")
+    set(EXTRA_CXX_FLAGS "-std=c++11 -Wall -Wextra -Wno-shadow -Wswitch -Wreturn-type -Wcast-qual -Wno-deprecated -Wnon-virtual-dtor -fno-strict-aliasing")
     if (NOT RELEASE_BUILD)
         # -Werror is most useful during development, don't potentially break
         # release builds