Only check for -fno-strict-overflow if -fwrapv does not work.
authorGuus Sliepen <guus@tinc-vpn.org>
Sun, 5 Jul 2015 14:03:03 +0000 (16:03 +0200)
committerGuus Sliepen <guus@tinc-vpn.org>
Sun, 28 Feb 2016 14:42:04 +0000 (15:42 +0100)
configure.ac

index 89957ac..b51c47b 100644 (file)
@@ -149,8 +149,8 @@ dnl No -fstack-protector-all because it doesn't work on all platforms or archite
 AC_ARG_ENABLE([hardening], AS_HELP_STRING([--disable-hardening], [disable compiler and linker hardening flags]))
 AS_IF([test "x$enable_hardening" != "xno"],
   [AX_CHECK_COMPILE_FLAG([-DFORTIFY_SOURCE=2], [CPPFLAGS="$CPPFLAGS -DFORTIFY_SOURCE=2"])
-   AX_CHECK_COMPILE_FLAG([-fno-strict-overflow], [CPPFLAGS="$CPPFLAGS -fno-strict-overflow"])
-   AX_CHECK_COMPILE_FLAG([-fwrapv], [CPPFLAGS="$CPPFLAGS -fwrapv"])
+   AX_CHECK_COMPILE_FLAG([-fwrapv], [CPPFLAGS="$CPPFLAGS -fwrapv"],
+   AX_CHECK_COMPILE_FLAG([-fno-strict-overflow], [CPPFLAGS="$CPPFLAGS -fno-strict-overflow"]))
    case $host_os in
      *mingw*)
        AX_CHECK_LINK_FLAG([-Wl,--dynamicbase], [LDFLAGS="$LDFLAGS -Wl,--dynamicbase"])