From 6d3c5357b99d6c1a8246385d3f7f303734cbad52 Mon Sep 17 00:00:00 2001
From: Patrick McDermott <pj@pehjota.net>
Date: Sun, 05 Nov 2017 12:33:45 -0500
Subject: configure.ac: Optionally enable address sanitization

---
(limited to 'configure.ac')

diff --git a/configure.ac b/configure.ac
index 2a03704..3d90581 100644
--- a/configure.ac
+++ b/configure.ac
@@ -65,6 +65,26 @@ fi
 AX_CHECK_COMPILE_FLAG([-fdiagnostics-color=auto],
 	[AX_APPEND_FLAG([-fdiagnostics-color=auto])])
 
+AC_ARG_ENABLE([address-sanitization],
+	[AS_HELP_STRING([--enable-address-sanitization],
+		[turn on AddressSanitizer (if available)])],
+	[case "${enableval}" in yes|no);; *) AC_MSG_ERROR(
+		[bad value ${enableval} for address-sanitization option]);;
+	esac],
+	[
+		address_sanitization=no
+		gl_GCC_VERSION_IFELSE([4], [8],
+			[test -d "${srcdir}/.git" && address_sanitization=yes])
+	]
+)
+if test "x${address_sanitization}" = 'xyes'; then
+	AX_CHECK_COMPILE_FLAG([-fsanitize=address],
+		[AX_APPEND_FLAG([-fsanitize=address], [ASAN_CFLAGS])])
+	AX_CHECK_COMPILE_FLAG([-fno-omit-frame-pointer],
+		[AX_APPEND_FLAG([-fno-omit-frame-pointer], [ASAN_CFLAGS])])
+	AC_SUBST([ASAN_CFLAGS])
+fi
+
 PKG_PROG_PKG_CONFIG()
 PKG_CHECK_MODULES([GTK], [gtk+-3.0])
 PKG_CHECK_MODULES([WEBKIT2GTK], [webkit2gtk-4.0])
--
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