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Bug 689609 - Move the changes back in. Needs a clobber. r=re-revert.

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This commit is contained in:
Rafael Ávila de Espíndola 2011-09-28 17:49:18 -04:00
parent 6c638adde5
commit 57abd19f9d
1 changed files with 16 additions and 12 deletions
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28
configure.in
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@ -2824,24 +2824,28 @@ fi
AC_SUBST(_MOZ_RTTI_FLAGS_ON)
dnl Check whether we can use gcc's c++0x mode
dnl Check whether we can use gcc's c++0x mode. We check for some basic
dnl features that we need.
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
CXXFLAGS="$CXXFLAGS $_MOZ_RTTI_FLAGS"
AC_CACHE_CHECK(for c++0x support,
ac_cv_cxx0x_support,
[AC_TRY_COMPILE([#include <memory>
#include <utility>
void f(int&&);], [
int a;
f(std::move(a));
],
ac_cv_cxx0x_support="yes",
ac_cv_cxx0x_support="no")])
CXXFLAGS="$_SAVE_CXXFLAGS"
if test "$ac_cv_cxx0x_support" = "yes"; then
CXXFLAGS="$CXXFLAGS -std=gnu++0x"
fi
fi