libcruft-util/m4/nc_cxx.m4

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AC_DEFUN([NC_CXX],[
2015-02-03 00:15:28 +11:00
AX_CHECK_COMPILE_FLAG(
[-std=c++1y],
[AX_APPEND_FLAG([-std=c++1y], [CXXFLAGS])],
[AC_ERROR([Unable to enable c++1y])]
)
AX_APPEND_COMPILE_FLAGS([-fno-deduce-init-list], [], [-Werror])
AX_APPEND_COMPILE_FLAGS([-fno-deduce-init-list], [], [-Werror])
AC_C_CONST
AC_C_RESTRICT
AC_C_INLINE
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([struct A { virtual void C (void) = 0; };
struct B : A { void C (void) override; }; ],
[])],
[], [AC_DEFINE([override], [], [Pretend about override keyword support])])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([struct A final { }; ],
[])],
[], [AC_DEFINE([final], [], [Pretend about final keyword support])])
])