From 709523366d3161cdc3d1416707a79ad4a9f54208 Mon Sep 17 00:00:00 2001
From: Andrei Karas <akaras@inbox.ru>
Date: Thu, 28 Apr 2016 20:30:22 +0300
Subject: Add new gcc sanitize flag -fsanitize=bounds-strict

---
 configure    | 50 +++++++++++++++++++++++++++++++++++++++++++++++++-
 configure.in |  1 +
 2 files changed, 50 insertions(+), 1 deletion(-)

diff --git a/configure b/configure
index ba2cc3815..a29752859 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in 367e95d.
+# From configure.in 8291fd8.
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.69.
 #
@@ -5537,6 +5537,54 @@ rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 
 
 
+		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -fsanitize=bounds-strict" >&5
+$as_echo_n "checking whether $CC supports -fsanitize=bounds-strict... " >&6; }
+		OLD_CFLAGS="$CFLAGS"
+		CFLAGS="$CFLAGS -fsanitize=bounds-strict"
+		OLD_LDFLAGS="$LDFLAGS"
+		LDFLAGS="$LDFLAGS -fsanitize=bounds-strict"
+		cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int foo;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+				{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+else
+
+				{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+				{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC requires -fsanitize-undefined-trap-on-error for -fsanitize=bounds-strict" >&5
+$as_echo_n "checking whether $CC requires -fsanitize-undefined-trap-on-error for -fsanitize=bounds-strict... " >&6; }
+				CFLAGS="$CFLAGS -fsanitize-undefined-trap-on-error"
+				cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int foo;
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+						{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+else
+
+						{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+						CFLAGS="$OLD_CFLAGS"
+						LDFLAGS="$OLD_LDFLAGS"
+
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+
+
 		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -fsanitize=object-size" >&5
 $as_echo_n "checking whether $CC supports -fsanitize=object-size... " >&6; }
 		OLD_CFLAGS="$CFLAGS"
diff --git a/configure.in b/configure.in
index 848e055ea..3968dc568 100644
--- a/configure.in
+++ b/configure.in
@@ -728,6 +728,7 @@ if test "$enable_sanitize" != "no" ; then
 		AC_CHECK_SANITIZER_FLAG(return)
 		AC_CHECK_SANITIZER_FLAG(signed-integer-overflow)
 		AC_CHECK_SANITIZER_FLAG(bounds)
+		AC_CHECK_SANITIZER_FLAG(bounds-strict)
 		AC_CHECK_SANITIZER_FLAG(object-size)
 		AC_CHECK_SANITIZER_FLAG(float-divide-by-zero)
 		AC_CHECK_SANITIZER_FLAG(float-cast-overflow)
-- 
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