From: Vincent Bernat <vincent@bernat.im>
Date: Thu, 28 Sep 2017 11:11:32 +0000 (+0200)
Subject: build: only enable safe-stack if linker supports it
X-Git-Tag: 0.9.9~9^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=refs%2Fpull%2F246%2Fhead;p=thirdparty%2Flldpd.git

build: only enable safe-stack if linker supports it
---

diff --git a/configure.ac b/configure.ac
index 773a81f9..0edceb12 100644
--- a/configure.ac
+++ b/configure.ac
@@ -111,7 +111,9 @@ if test x"$hardening" != x"no"; then
   AX_CFLAGS_GCC_OPTION([-fstack-protector-strong], [LLDP_CFLAGS])
   AX_CFLAGS_GCC_OPTION([-D_FORTIFY_SOURCE=2], [LLDP_CPPFLAGS])
   AX_LDFLAGS_OPTION([-fsanitize=safe-stack], [LLDP_BIN_LDFLAGS])
-  AX_CFLAGS_GCC_OPTION([-fsanitize=safe-stack], [LLDP_CFLAGS])
+  if test x"$ax_cv_ld_check_flag__fsanitize_safe_stack" != x"no"; then
+    AX_CFLAGS_GCC_OPTION([-fsanitize=safe-stack], [LLDP_CFLAGS])
+  fi
 fi
 if test x"$pie" = x"yes"; then
   AX_CFLAGS_GCC_OPTION([-fPIE], [LLDP_CFLAGS])