From cc894a72098322e12700e543297dc333b11951de Mon Sep 17 00:00:00 2001
From: Tuncer Ayaz <tuncer.ayaz@gmail.com>
Date: Fri, 11 Jul 2014 21:24:50 +0200
Subject: Implement --enable-sanitizers[=sanitizers]

Similar to debugging with Valgrind, it's very useful to enable
-fsanitize= switches to catch bugs at runtime.

$ ./configure
Result: no sanitizer enabled

$ ./configure --enable-sanitizers
Result: -fsanitize=address,undefined

$ ./configure --enable-sanitizers=address,thread,undefined
Result: -fsanitize=address,thread,undefined

$ ./configure --enable-sanitizers=undefined
Result: -fsanitize=undefined
---
 configure.in | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'configure.in')

diff --git a/configure.in b/configure.in
index be906dcb4e..780e660f9d 100644
--- a/configure.in
+++ b/configure.in
@@ -366,6 +366,12 @@ elif test X"$TMPSYS" '=' X"Darwin-i386"; then
 	export LDFLAGS
 fi
 
+m4_define(DEFAULT_SANITIZERS, [address,undefined])
+AC_ARG_ENABLE(sanitizers,
+    AS_HELP_STRING(
+        [--enable-sanitizers@<:@=comma-separated list of sanitizers@:>@],
+	    [Default=DEFAULT_SANITIZERS]))
+
 AC_ARG_ENABLE([silent-rules], [dnl
 AS_HELP_STRING(
   [--enable-silent-rules],
-- 
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