_GL_HAS_BUILTIN_OVERFLOW_P  256 maint/gnulib/lib/intprops.h # define _GL_HAS_BUILTIN_OVERFLOW_P 0
_GL_HAS_BUILTIN_OVERFLOW_P  258 maint/gnulib/lib/intprops.h # define _GL_HAS_BUILTIN_OVERFLOW_P __has_builtin (__builtin_mul_overflow_p)
_GL_HAS_BUILTIN_OVERFLOW_P  260 maint/gnulib/lib/intprops.h # define _GL_HAS_BUILTIN_OVERFLOW_P (7 <= __GNUC__)