diff options
| author | Luke Dashjr <luke-jr+git@utopios.org> | 2013-11-12 21:01:36 +0000 |
|---|---|---|
| committer | Luke Dashjr <luke-jr+git@utopios.org> | 2014-01-18 19:41:10 +0000 |
| commit | 9b4e03b27b04f6dc687409a13859d59bb7909d8f (patch) | |
| tree | 567a7c188751400b59a53c5a22ea8e726015b02b /configure.ac | |
| parent | 123e4f878eb96ccd1a0de5d0a16230a2c2df41d1 (diff) | |
Bugfix: Undefine _FORTIFY_SOURCE before redefining it, to avoid warnings on compilers that define it by default
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac index d12ccd24b2..994c74858a 100644 --- a/configure.ac +++ b/configure.ac @@ -286,7 +286,12 @@ if test x$use_hardening != xno; then AX_CHECK_COMPILE_FLAG([-Wstack-protector],[HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -Wstack-protector"]) AX_CHECK_COMPILE_FLAG([-fPIE],[HARDENED_CXXFLAGS="$HARDENED_CXXFLAGS -fPIE"]) - AX_CHECK_PREPROC_FLAG([-D_FORTIFY_SOURCE=2],[HARDENED_CPPFLAGS="$HARDENED_CPPFLAGS -D_FORTIFY_SOURCE=2"]) + AX_CHECK_PREPROC_FLAG([-D_FORTIFY_SOURCE=2],[ + AX_CHECK_PREPROC_FLAG([-U_FORTIFY_SOURCE],[ + HARDENED_CPPFLAGS="$HARDENED_CPPFLAGS -U_FORTIFY_SOURCE" + ]) + HARDENED_CPPFLAGS="$HARDENED_CPPFLAGS -D_FORTIFY_SOURCE=2" + ]) AX_CHECK_LINK_FLAG([[-Wl,--dynamicbase]], [HARDENED_LDFLAGS="$HARDENED_LDFLAGS -Wl,--dynamicbase"]) AX_CHECK_LINK_FLAG([[-Wl,--nxcompat]], [HARDENED_LDFLAGS="$HARDENED_LDFLAGS -Wl,--nxcompat"]) |