diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 22 |
1 files changed, 0 insertions, 22 deletions
diff --git a/configure.ac b/configure.ac index 49bc0fc63497..a3c4eca8cbf6 100644 --- a/configure.ac +++ b/configure.ac @@ -6191,28 +6191,6 @@ CXXFLAGS=$save_CXXFLAGS AC_SUBST(CXXFLAGS_CXX11) -dnl =================================================================== -dnl Check for C++11 perfect forwarding support -dnl =================================================================== -AC_MSG_CHECKING([whether $CXX supports C++11 perfect forwarding]) -save_CXXFLAGS=$CXXFLAGS -CXXFLAGS="$CXXFLAGS $CXXFLAGS_CXX11" -AC_LANG_PUSH([C++]) -AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ - #include <utility> - template<typename T, typename... Args> T * f(Args &&... v) { - return new T(std::forward<Args>(v)...); - } - ]], [[ - f<int>(0); - ]])], [perfect_forwarding=yes], [perfect_forwarding=no]) -AC_LANG_POP([C++]) -CXXFLAGS=$save_CXXFLAGS -AC_MSG_RESULT([$perfect_forwarding]) -if test "$perfect_forwarding" = yes; then - AC_DEFINE([HAVE_CXX11_PERFECT_FORWARDING]) -fi - AC_MSG_CHECKING([whether $CXX supports C++11 constexpr]) save_CXXFLAGS=$CXXFLAGS CXXFLAGS="$CXXFLAGS $CXXFLAGS_CXX11" |