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Separate the module 'waitpid' from the module 'sys_wait'. * lib/sys_wait.in.h (waitpid): Declare only if the 'waitpid' module is present. * m4/sys_wait_h.m4 (gl_SYS_WAIT_MODULE_INDICATOR): Invoke gl_MODULE_INDICATOR_FOR_TESTS. (gl_SYS_WAIT_H_DEFAULTS): Initialize GNULIB_WAITPID. * modules/sys_wait (Depends-on): Remove waitpid. (Makefile.am): Substitute GNULIB_WAITPID. * modules/waitpid (configure.ac): Invoke gl_SYS_WAIT_MODULE_INDICATOR. * tests/test-sys_wait-c++.cc (GNULIB_NAMESPACE::waitpid): Check the signature only if the 'waitpid' module is present. * doc/posix-functions/waitpid.texi: Mention the 'waitpid' module. * NEWS: Mention the change. * modules/grantpt (Depends-on): Add waitpid. * modules/wait-process (Depends-on): Likewise.
author Bruno Haible <bruno@clisp.org>
date Wed, 29 Sep 2010 16:14:55 +0200
parents 886a8812ecd0
children 97fc9a21a8fb
line wrap: on
line source

# sys_wait_h.m4 serial 5
dnl Copyright (C) 2008-2010 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.

AC_DEFUN([gl_SYS_WAIT_H],
[
  AC_REQUIRE([gl_SYS_WAIT_H_DEFAULTS])

  dnl <sys/wait.h> is always overridden, because of GNULIB_POSIXCHECK.
  gl_CHECK_NEXT_HEADERS([sys/wait.h])

  dnl Check for declarations of anything we want to poison if the
  dnl corresponding gnulib module is not in use.
  gl_WARN_ON_USE_PREPARE([[#include <sys/wait.h>]],
    [waitpid])
])

AC_DEFUN([gl_SYS_WAIT_MODULE_INDICATOR],
[
  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
  AC_REQUIRE([gl_SYS_WAIT_H_DEFAULTS])
  gl_MODULE_INDICATOR_SET_VARIABLE([$1])
  dnl Define it also as a C macro, for the benefit of the unit tests.
  gl_MODULE_INDICATOR_FOR_TESTS([$1])
])

AC_DEFUN([gl_SYS_WAIT_H_DEFAULTS],
[
  GNULIB_WAITPID=0; AC_SUBST([GNULIB_WAITPID])
  dnl Assume proper GNU behavior unless another module says otherwise.
])