INT_ADD_WRAPV     391 maint/gnulib/lib/intprops.h # define INT_ADD_WRAPV(a, b, r) __builtin_add_overflow (a, b, r)
INT_ADD_WRAPV     394 maint/gnulib/lib/intprops.h # define INT_ADD_WRAPV(a, b, r) \