On 05/21/2011 12:02 PM, Bruno Haible wrote: > Eric Blake wrote: >> @@ -48,7 +48,6 @@ AC_DEFUN([gl_FUNC_STRERROR_R], >> [AC_LANG_PROGRAM( >> [[#include <errno.h> >> #include <string.h> >> - int strerror_r (int, char *, size_t); >> ]], >> [[int result = 0; >> char buf[79]; > > This part doesn't look good to me. The line was meant to provide a declaration > if the system's <string.h> doesn't.
But we don't get to this part of the m4 file unless we've already passed the earlier part about checking if the strerror_r signature complies with POSIX. At which point, either that earlier test already passed because the signatures were identical, or it passed because there was no declaration at all. In the former case, deleting the redundant declaration here makes no difference; in the latter case, deleting the only declaration here makes compilation fail (which is what we want, since that means the system didn't really comply with POSIX after all). -- Eric Blake ebl...@redhat.com +1-801-349-2682 Libvirt virtualization library http://libvirt.org
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