gnulib: m4/ptsname.m4 annotate

annotate m4/ptsname.m4 @ 40057:b06060465f09

maint: Run 'make update-copyright'

author	Paul Eggert <eggert@cs.ucla.edu>
date	Tue, 01 Jan 2019 00:25:11 +0100
parents	10eb9086bea0
children

rev	line source
19479 4bc5b8cefed7 Add cross-compilation results for GNU/Hurd. Samuel Thibault <samuel.thibault@gnu.org> parents: 18985 diff changeset	1 # ptsname.m4 serial 5
40057 b06060465f09 maint: Run 'make update-copyright' Paul Eggert <eggert@cs.ucla.edu> parents: 19484 diff changeset	2 dnl Copyright (C) 2010-2019 Free Software Foundation, Inc.
13025 89efc5fdcef3 New module 'ptsname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	3 dnl This file is free software; the Free Software Foundation
89efc5fdcef3 New module 'ptsname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	4 dnl gives unlimited permission to copy and/or distribute it,
89efc5fdcef3 New module 'ptsname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	5 dnl with or without modifications, as long as this notice is preserved.
89efc5fdcef3 New module 'ptsname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	6
89efc5fdcef3 New module 'ptsname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	7 AC_DEFUN([gl_FUNC_PTSNAME],
89efc5fdcef3 New module 'ptsname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	8 [
89efc5fdcef3 New module 'ptsname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	9 AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
18985 89722d6723c5 Make sure $host and $host_os are defined when used. Bruno Haible <bruno@clisp.org> parents: 18626 diff changeset	10 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
13025 89efc5fdcef3 New module 'ptsname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	11
89efc5fdcef3 New module 'ptsname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	12 dnl Persuade glibc <stdlib.h> to declare ptsname().
89efc5fdcef3 New module 'ptsname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	13 AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
89efc5fdcef3 New module 'ptsname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	14
89efc5fdcef3 New module 'ptsname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	15 AC_CHECK_FUNCS([ptsname])
89efc5fdcef3 New module 'ptsname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	16 if test $ac_cv_func_ptsname = no; then
89efc5fdcef3 New module 'ptsname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	17 HAVE_PTSNAME=0
17121 4e2101c3d42c ptsname: reject invalid file descriptors Eric Blake <eblake@redhat.com> parents: 16201 diff changeset	18 else
4e2101c3d42c ptsname: reject invalid file descriptors Eric Blake <eblake@redhat.com> parents: 16201 diff changeset	19 AC_CACHE_CHECK([whether ptsname sets errno on failure],
4e2101c3d42c ptsname: reject invalid file descriptors Eric Blake <eblake@redhat.com> parents: 16201 diff changeset	20 [gl_cv_func_ptsname_sets_errno],
4e2101c3d42c ptsname: reject invalid file descriptors Eric Blake <eblake@redhat.com> parents: 16201 diff changeset	21 [AC_RUN_IFELSE(
4e2101c3d42c ptsname: reject invalid file descriptors Eric Blake <eblake@redhat.com> parents: 16201 diff changeset	22 [AC_LANG_PROGRAM([[#include <errno.h>
4e2101c3d42c ptsname: reject invalid file descriptors Eric Blake <eblake@redhat.com> parents: 16201 diff changeset	23 ]], [[
4e2101c3d42c ptsname: reject invalid file descriptors Eric Blake <eblake@redhat.com> parents: 16201 diff changeset	24 return ptsname (-1) \|\| !errno;
4e2101c3d42c ptsname: reject invalid file descriptors Eric Blake <eblake@redhat.com> parents: 16201 diff changeset	25 ]])],
4e2101c3d42c ptsname: reject invalid file descriptors Eric Blake <eblake@redhat.com> parents: 16201 diff changeset	26 [gl_cv_func_ptsname_sets_errno=yes],
4e2101c3d42c ptsname: reject invalid file descriptors Eric Blake <eblake@redhat.com> parents: 16201 diff changeset	27 [gl_cv_func_ptsname_sets_errno=no],
4e2101c3d42c ptsname: reject invalid file descriptors Eric Blake <eblake@redhat.com> parents: 16201 diff changeset	28 [case "$host_os" in
19479 4bc5b8cefed7 Add cross-compilation results for GNU/Hurd. Samuel Thibault <samuel.thibault@gnu.org> parents: 18985 diff changeset	29 # Guess yes on glibc systems.
4bc5b8cefed7 Add cross-compilation results for GNU/Hurd. Samuel Thibault <samuel.thibault@gnu.org> parents: 18985 diff changeset	30 -gnu \| gnu*) gl_cv_func_ptsname_sets_errno="guessing yes" ;;
4bc5b8cefed7 Add cross-compilation results for GNU/Hurd. Samuel Thibault <samuel.thibault@gnu.org> parents: 18985 diff changeset	31 # If we don't know, assume the worst.
4bc5b8cefed7 Add cross-compilation results for GNU/Hurd. Samuel Thibault <samuel.thibault@gnu.org> parents: 18985 diff changeset	32 *) gl_cv_func_ptsname_sets_errno="guessing no" ;;
17121 4e2101c3d42c ptsname: reject invalid file descriptors Eric Blake <eblake@redhat.com> parents: 16201 diff changeset	33 esac
4e2101c3d42c ptsname: reject invalid file descriptors Eric Blake <eblake@redhat.com> parents: 16201 diff changeset	34 ])])
4e2101c3d42c ptsname: reject invalid file descriptors Eric Blake <eblake@redhat.com> parents: 16201 diff changeset	35 case $gl_cv_func_ptsname_sets_errno in
4e2101c3d42c ptsname: reject invalid file descriptors Eric Blake <eblake@redhat.com> parents: 16201 diff changeset	36 *no) REPLACE_PTSNAME=1 ;;
4e2101c3d42c ptsname: reject invalid file descriptors Eric Blake <eblake@redhat.com> parents: 16201 diff changeset	37 esac
13025 89efc5fdcef3 New module 'ptsname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	38 fi
89efc5fdcef3 New module 'ptsname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	39 ])
89efc5fdcef3 New module 'ptsname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	40
89efc5fdcef3 New module 'ptsname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	41 # Prerequisites of lib/ptsname.c.
89efc5fdcef3 New module 'ptsname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	42 AC_DEFUN([gl_PREREQ_PTSNAME], [
89efc5fdcef3 New module 'ptsname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	43 :
89efc5fdcef3 New module 'ptsname'. Bruno Haible <bruno@clisp.org> parents: diff changeset	44 ])

Mercurial > gnulib

annotate m4/ptsname.m4 @ 40057:b06060465f09