libcruft-util/m4/nc_cxx.m4

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AC_DEFUN([NC_CXX],[
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AX_CHECK_COMPILE_FLAG(
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[-std=c++1z],
[AX_APPEND_FLAG([-std=c++1z], [CXXFLAGS])],
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[AC_MSG_ERROR([Unable to enable c++1z])]
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)
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AX_APPEND_COMPILE_FLAGS([-pipe], [], [-Werror])
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
AX_APPEND_COMPILE_FLAGS([-fvisibility=hidden], [], [-Werror])
])