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authorCory Fields <cory-nospam-@coryfields.com>2015-02-23 17:48:57 -0500
committerCory Fields <cory-nospam-@coryfields.com>2015-02-23 17:48:57 -0500
commit3ee028f131db0ea78bfde0961a3fca7b9e95b193 (patch)
treef4f7828672be0e9daa5337a14d51bd61d400b697 /configure.ac
parent8b298ca7d7540acc19d1df79a5c2af7b5aca8cbe (diff)
build: disable reduced exports by default
This is really a packager's option. While it's helpful to encourage devs to test this option for daily builds, it's not reliable in several real-world use-cases. Some older libstdc++ runtimes (freebsd 9, debian wheezy, for example) fail to properly catch exceptions due to mismatched type_info. See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=19664 for more info.
Diffstat (limited to 'configure.ac')
-rw-r--r--configure.ac37
1 files changed, 9 insertions, 28 deletions
diff --git a/configure.ac b/configure.ac
index 85e3d1d669..9dd3f17d88 100644
--- a/configure.ac
+++ b/configure.ac
@@ -115,9 +115,9 @@ AC_ARG_ENABLE([hardening],
AC_ARG_ENABLE([reduce-exports],
[AS_HELP_STRING([--enable-reduce-exports],
- [attempt to reduce exported symbols in the resulting executables (default is yes)])],
+ [attempt to reduce exported symbols in the resulting executables (default is no)])],
[use_reduce_exports=$enableval],
- [use_reduce_exports=auto])
+ [use_reduce_exports=no])
AC_ARG_ENABLE([ccache],
[AS_HELP_STRING([--enable-ccache],
@@ -473,20 +473,12 @@ AC_LINK_IFELSE([AC_LANG_SOURCE([
if test x$use_reduce_exports = xyes; then
AC_MSG_ERROR([Cannot find a working visibility attribute. Use --disable-reduced-exports.])
fi
- AC_MSG_WARN([Cannot find a working visibility attribute. Disabling reduced exports.])
- use_reduce_exports=no
]
)
-if test x$use_reduce_exports != xno; then
+if test x$use_reduce_exports = xyes; then
AX_CHECK_COMPILE_FLAG([-fvisibility=hidden],[RE_CXXFLAGS="-fvisibility=hidden"],
- [
- if test x$use_reduce_exports = xyes; then
- AC_MSG_ERROR([Cannot set default symbol visibility. Use --disable-reduced-exports.])
- fi
- AC_MSG_WARN([Cannot set default symbol visibility. Disabling reduced exports.])
- use_reduce_exports=no
- ])
+ [AC_MSG_ERROR([Cannot set default symbol visibility. Use --disable-reduced-exports.])])
fi
LEVELDB_CPPFLAGS=
@@ -533,7 +525,7 @@ AX_BOOST_THREAD
AX_BOOST_CHRONO
-if test x$use_reduce_exports != xno; then
+if test x$use_reduce_exports = xyes; then
AC_MSG_CHECKING([for working boost reduced exports])
TEMP_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$BOOST_CPPFLAGS $CPPFLAGS"
@@ -547,25 +539,14 @@ if test x$use_reduce_exports != xno; then
#endif
]])],[
AC_MSG_RESULT(yes)
- ],[:
- if test x$use_reduce_exports = xauto; then
- use_reduce_exports=no
- else
- if test x$use_reduce_exports = xyes; then
- AC_MSG_ERROR([boost versions < 1.49 are known to be broken with reduced exports. Use --disable-reduced-exports.])
- fi
- fi
- AC_MSG_RESULT(no)
- AC_MSG_WARN([boost versions < 1.49 are known to have symbol visibility issues. Disabling reduced exports.])
+ ],[
+ AC_MSG_ERROR([boost versions < 1.49 are known to be broken with reduced exports. Use --disable-reduced-exports.])
])
CPPFLAGS="$TEMP_CPPFLAGS"
fi
-
-elif test x$use_reduce_exports = xauto; then
- use_reduce_exports=yes
fi
-if test x$use_reduce_exports != xno; then
+if test x$use_reduce_exports = xyes; then
CXXFLAGS="$CXXFLAGS $RE_CXXFLAGS"
AX_CHECK_LINK_FLAG([[-Wl,--exclude-libs,ALL]], [RELDFLAGS="-Wl,--exclude-libs,ALL"])
fi
@@ -827,7 +808,7 @@ else
fi
AC_MSG_CHECKING([whether to reduce exports])
-if test x$use_reduce_exports != xno; then
+if test x$use_reduce_exports = xyes; then
AC_MSG_RESULT([yes])
else
AC_MSG_RESULT([no])