diff options
| -rw-r--r-- | configure.ac | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac index c16eae8ba1..677a700ef5 100644 --- a/configure.ac +++ b/configure.ac @@ -854,7 +854,10 @@ if test x$use_hardening != xno; then AX_CHECK_COMPILE_FLAG([-Wstack-protector],[HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -Wstack-protector"]) AX_CHECK_COMPILE_FLAG([-fstack-protector-all],[HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -fstack-protector-all"]) - AX_CHECK_COMPILE_FLAG([-fcf-protection=full],[HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -fcf-protection=full"]) + dnl -fcf-protection used with Clang 7 causes ld to emit warnings: + dnl ld: error: ... <corrupt x86 feature size: 0x8> + dnl Use CHECK_LINK_FLAG & --fatal-warnings to ensure we wont use the flag in this case. + AX_CHECK_LINK_FLAG([-fcf-protection=full],[HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -fcf-protection=full"],, [[$LDFLAG_WERROR]]) dnl stack-clash-protection does not work properly when building for Windows. dnl We use the test case from https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90458 |