_GL_HAS_BUILTIN_ADD_OVERFLOW  235 maint/gnulib/lib/intprops.h # define _GL_HAS_BUILTIN_ADD_OVERFLOW 1
_GL_HAS_BUILTIN_ADD_OVERFLOW  237 maint/gnulib/lib/intprops.h # define _GL_HAS_BUILTIN_ADD_OVERFLOW __has_builtin (__builtin_add_overflow)
_GL_HAS_BUILTIN_ADD_OVERFLOW  239 maint/gnulib/lib/intprops.h # define _GL_HAS_BUILTIN_ADD_OVERFLOW 0