configure.ac: don't disable C++ exceptions

We may start using C++ exceptions for error handling soon.
This commit is contained in:
Max Kellermann 2015-12-15 22:08:39 +01:00
parent c11345c4d9
commit 16218c8680

View File

@ -448,27 +448,8 @@ dnl ---------------------------------------------------------------------------
dnl Mandatory Libraries
dnl ---------------------------------------------------------------------------
no_exceptions=yes
AX_BOOST_BASE([1.46],, [AC_MSG_ERROR([Boost not found])])
dnl Don't disable exceptions on Boost older than 1.54, because
dnl Boost.Intrusive supports this compiler mode only since 1.54;
dnl see https://svn.boost.org/trac/boost/ticket/7849
CPPFLAGS_SAVED="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
export CPPFLAGS
AC_LANG_PUSH(C++)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
@%:@include <boost/version.hpp>
]], [[
#if BOOST_VERSION < 105400
#error detected Boost older than 1.54
#endif
]])],, [no_exceptions=no])
AC_LANG_POP([C++])
CPPFLAGS="$CPPFLAGS_SAVED"
AC_ARG_ENABLE(icu,
AS_HELP_STRING([--enable-icu],
[enable libicu for Unicode (default: auto)]),,
@ -1326,12 +1307,6 @@ AC_LANG_PUSH([C++])
AX_APPEND_COMPILE_FLAGS([-fvisibility=hidden])
AX_APPEND_COMPILE_FLAGS([-fno-threadsafe-statics])
AX_APPEND_COMPILE_FLAGS([-fmerge-all-constants])
if test x$no_exceptions = xyes; then
AX_APPEND_COMPILE_FLAGS([-fno-exceptions])
AX_APPEND_COMPILE_FLAGS([-fno-rtti])
fi
AX_APPEND_COMPILE_FLAGS([-ffast-math])
AX_APPEND_COMPILE_FLAGS([-ftree-vectorize])
AC_LANG_POP