On powerpc-ibm-aix5.3.0.0, poll is not deemed acceptable: the test in m4/poll.m4 fails because polling on /dev/null does not work. It does work to poll on regular files, though. Polling on /dev/tty does not work either.
This documentation may be helpful: http://www16.boulder.ibm.com/doc_link/en_US/a_doc_lib/libs/basetrf1/poll.htm#a1289b55 http://www16.boulder.ibm.com/doc_link/en_US/a_doc_lib/files/aixfiles/poll.h.htm#a16691c07 I'm not sure whether the test in m4/poll.m4 should be adjusted or not: it mentions OS X poll as buggy; judging from the change http://thread.gmane.org/gmane.comp.lib.gnulib.bugs/3622 it looks to me that the test should fail on AIX 5.3 as well. In that case, the test is fine, but the build fails later: | xlc -DHAVE_CONFIG_H -DEXEEXT=\"\" -DEXEEXT=\"\" -DLIBDIR=\"/usr/local/lib\" -I. -I../../dummy-0/lib -I.. -D_THREAD_SAFE -g -c ../../dummy-0/lib/poll.c | "../../dummy-0/lib/poll.c", line 54.1: 1506-343 (S) Redeclaration of rpl_poll differs from previous declaration on line 119 of "/usr/include/sys/poll.h". | "../../dummy-0/lib/poll.c", line 54.1: 1506-381 (I) The type "void*" of parameter 1 in the prototype declaration is not compatible with the corresponding parameter type "struct pollfd*" in the nonprototype declaration. because /usr/include/poll.h exists and thus the replacement header is not added (earlier in gl_FUNC_POLL). The patch below adds it anyway in case we deem poll() inacceptable. I'm not sure if this is generally the right thing to do, but this works on AIX. Cheers, Ralf * poll.m4 (gl_FUNC_POLL): If we deem poll(2) unacceptable, use our replacement poll.h in any case, to avoid a differing declaration from a system header. Seen on AIX. Index: m4/poll.m4 =================================================================== RCS file: /cvsroot/gnulib/gnulib/m4/poll.m4,v retrieving revision 1.4 diff -u -r1.4 poll.m4 --- m4/poll.m4 15 Jul 2005 10:34:31 -0000 1.4 +++ m4/poll.m4 22 Feb 2006 22:23:19 -0000 @@ -57,6 +57,7 @@ fi if test $gl_cv_func_poll = no; then + POLL_H=poll.h AC_LIBOBJ(poll) AC_DEFINE(poll, rpl_poll, [Define to poll if the replacement function should be used.]) _______________________________________________ bug-gnulib mailing list bug-gnulib@gnu.org http://lists.gnu.org/mailman/listinfo/bug-gnulib