On Mon, Apr 14, 2014 at 09:16:31PM +0200, Ludovic Courtès wrote: > This is because you’re compiling with -Wundef -Werror, something that > libc 2.19 headers apparently don’t support.
I tried without both, and then it works. Do you have a source and suggestion on what to do in such a case? Is it deprecated to use -Werror with the autotoools? Pari/GP now also works without modifying anything; maybe this was just a problem of needing to start a new shell, as sometimes new binaries in the path are not taken into account due to caching. Andreas