Hi Eric, > after looking into this deeper, it (happily) appears that I > may have been mistaken. It looks like the gnulib vasprintf module > _already_ performs printf parsing on mingw; and that as a virtue of that > printf parsing, %zu and %llu are already rewritten into modifiers > understood by mingw. And if this were not the case, I would recommend to you to use #include <inttypes.h> printf ("%" PRIuPTR, (uintptr_t) size_t_value); with the gnulib module 'inttypes' (LGPLv2+). If someone insists on a guarantee that printf ("%zu", size_t_value); works, he needs the 'printf-posix' module, which is not available under LGPLv2. I'm reluctant to move all of 'printf-posix', 'fprintf-posix', 'sprintf-posix' to LGPLv2+, including the auxiliary modules fseterr, isnand-nolibm, isnanl-nolibm, frexp-nolibm, frexpl-nolibm, printf-frexp, printf-frexpl, signbit, fpucw, because this is a significant piece of code, and LGPLv3+ has benefits over LGPLv2+ for us. Bruno -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list