Detect gcc c++0x headers brokenness and don't use -std=gnu++0x then. r=bsmedberg

This commit is contained in:
Mike Hommey 2011-05-05 12:26:32 -04:00
Родитель 98e5ce2261
Коммит f9a70a4291
1 изменённых файлов: 32 добавлений и 18 удалений

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@ -2961,11 +2961,43 @@ else
AC_MSG_RESULT(no)
fi
dnl ========================================================
dnl C++ rtti
dnl Should be smarter and check that the compiler does indeed have rtti
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(cpp-rtti,
[ --enable-cpp-rtti Enable C++ RTTI ],
[ _MOZ_USE_RTTI=1 ],
[ _MOZ_USE_RTTI= ])
if test "$_MOZ_USE_RTTI"; then
_MOZ_RTTI_FLAGS=$_MOZ_RTTI_FLAGS_ON
else
_MOZ_RTTI_FLAGS=$_MOZ_RTTI_FLAGS_OFF
fi
AC_SUBST(_MOZ_RTTI_FLAGS_ON)
dnl Check whether we can use gcc's c++0x mode
AC_LANG_CPLUSPLUS
if test "$GNU_CXX"; then
_SAVE_CXXFLAGS=$CXXFLAGS
CXXFLAGS="$CXXFLAGS -std=gnu++0x"
if test -z "$_MOZ_USE_RTTI"; then
CXXFLAGS="$CXXFLAGS $_MOZ_RTTI_FLAGS"
AC_CACHE_CHECK(for gcc c++0x headers bug without rtti,
ac_cv_cxx0x_headers_bug,
[AC_TRY_COMPILE([#include <memory>], [],
ac_cv_cxx0x_headers_bug="no",
ac_cv_cxx0x_headers_bug="yes")])
CXXFLAGS="$_SAVE_CXXFLAGS"
if test "$ac_cv_cxx0x_headers_bug" = "no"; then
CXXFLAGS="$CXXFLAGS -std=gnu++0x"
fi
fi
fi
dnl Check for usable char16_t (2 bytes, unsigned)
@ -7929,24 +7961,6 @@ if test "$ac_nscap_nonconst_opeq_bug" = "yes" ; then
fi
fi # SKIP_COMPILER_CHECKS
dnl ========================================================
dnl C++ rtti
dnl Should be smarter and check that the compiler does indeed have rtti
dnl ========================================================
MOZ_ARG_ENABLE_BOOL(cpp-rtti,
[ --enable-cpp-rtti Enable C++ RTTI ],
[ _MOZ_USE_RTTI=1 ],
[ _MOZ_USE_RTTI= ])
if test "$_MOZ_USE_RTTI"; then
_MOZ_RTTI_FLAGS=$_MOZ_RTTI_FLAGS_ON
else
_MOZ_RTTI_FLAGS=$_MOZ_RTTI_FLAGS_OFF
fi
AC_SUBST(_MOZ_RTTI_FLAGS_ON)
dnl ========================================================
dnl C++ exceptions (g++/VC/irix6/Sun only - for now)
dnl Should be smarter and check that the compiler does indeed have exceptions