https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63471
--- Comment #3 from dave.anglin at bell dot net --- On 10/8/2014 9:43 AM, jb at gcc dot gnu.org wrote: > Hmm, maybe add something like > > AC_CHECK_DECLS_ONCE([ttyname_r]) > > to configure.ac and then in unix.c(stream_ttyname) check with > > #ifdef HAVE_TTYNAME_R && HAVE_DECL_TTYNAME_R Don't we want to use ttyname_r in multithreaded applications? It seems HP-UX is the only platform to hide the declaration of ttyname_r using _REENTRANT :-( If configure finds ttyname_r, then presumably we don't need pthread linking for it. On some platforms (MacOS 10.4 and Solaris 11), ttyname_r may return a 'char *', not 'int'. Dave
