diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 0cf2dba4cb09..6b2808354e14 100644 --- a/configure.ac +++ b/configure.ac @@ -6390,6 +6390,20 @@ if test "$cxx11_ref_qualifier" = yes; then AC_DEFINE([HAVE_CXX11_REF_QUALIFIER]) fi +AC_MSG_CHECKING([whether $CXX supports C++11 char16_t string literals]) +save_CXXFLAGS=$CXXFLAGS +CXXFLAGS="$CXXFLAGS $CXXFLAGS_CXX11" +AC_LANG_PUSH([C++]) +AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[ + auto s = u""; + ]])], [cxx11_utf16_string_literal=yes], [cxx11_utf16_string_literal=no]) +AC_LANG_POP([C++]) +CXXFLAGS=$save_CXXFLAGS +AC_MSG_RESULT([$cxx11_utf16_string_literal]) +if test "$cxx11_utf16_string_literal" = yes; then + AC_DEFINE([HAVE_CXX11_UTF16_STRING_LITERAL]) +fi + AC_MSG_CHECKING([whether $CXX supports C++14 sized deallocation]) dnl At least Clang -fsanitize=address causes "multiple definition of dnl `operator delete(void*, unsigned long)'" also defined in |