From 1a3bb66608b2f96407d14fe13b782626990060f1 Mon Sep 17 00:00:00 2001
From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Date: Tue, 20 Nov 2018 08:20:13 +0100
Subject: [PATCH] CMakeLists.txt: conditionally use -fsanitize=address

Check that compiler supports -fsanitize=address before using it

Fixes:
 - http://autobuild.buildroot.net/results/221d6a418e75b39fe645c3a56cee676518d2cff6

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
---
 CMakeLists.txt | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2e8e07e..c3f71ce 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -17,7 +17,11 @@ if(COMPILER_SUPPORTS_WPEDANTIC)
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wpedantic")
 endif()
 if(CMAKE_BUILD_TYPE STREQUAL "Debug")
-    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g3 -O0 -fsanitize=address")
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g3 -O0")
+    check_c_compiler_flag("-fsanitize=address -Werror" COMPILER_SUPPORTS_SANITIZE_ADDRESS)
+    if(COMPILER_SUPPORTS_SANITIZE_ADDRESS)
+        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fsanitize=address")
+    endif()
     set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,-no_pie,")
 else()
   if("${CMAKE_C_COMPILER_ID}" STREQUAL "Clang")
-- 
2.14.1