--- /dev/null
+/* Definitions for POSIX spawn interface.
+ Copyright (C) 2000, 2003, 2004, 2008 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
+
+#ifndef _GL_SPAWN_H
+
+@PRAGMA_SYSTEM_HEADER@
+
+/* The include_next requires a split double-inclusion guard. */
+#if @HAVE_SPAWN_H@
+# @INCLUDE_NEXT@ @NEXT_SPAWN_H@
+#endif
+
+#ifndef _GL_SPAWN_H
+#define _GL_SPAWN_H
+
+#include <sched.h>
+#include <signal.h>
+#include <sys/types.h>
+
+#ifndef __THROW
+# define __THROW
+#endif
+
+/* GCC 2.95 and later have "__restrict"; C99 compilers have
+ "restrict", and "configure" may have defined "restrict".
+ Other compilers use __restrict, __restrict__, and _Restrict, and
+ 'configure' might #define 'restrict' to those words, so pick a
+ different name. */
+#ifndef _Restrict_
+# if 199901L <= __STDC_VERSION__
+# define _Restrict_ restrict
+# elif 2 < __GNUC__ || (2 == __GNUC__ && 95 <= __GNUC_MINOR__)
+# define _Restrict_ __restrict
+# else
+# define _Restrict_
+# endif
+#endif
+/* gcc 3.1 and up support the [restrict] syntax. Don't trust
+ sys/cdefs.h's definition of __restrict_arr, though, as it
+ mishandles gcc -ansi -pedantic. */
+#ifndef _Restrict_arr_
+# if ((199901L <= __STDC_VERSION__ \
+ || ((3 < __GNUC__ || (3 == __GNUC__ && 1 <= __GNUC_MINOR__)) \
+ && !__STRICT_ANSI__)) \
+ && !defined __GNUG__)
+# define _Restrict_arr_ _Restrict_
+# else
+# define _Restrict_arr_
+# endif
+#endif
+
+/* The definition of GL_LINK_WARNING is copied here. */
+
+
+/* Data structure to contain attributes for thread creation. */
+#if @REPLACE_POSIX_SPAWN@
+# define posix_spawnattr_t rpl_posix_spawnattr_t
+#endif
+typedef struct
+{
+ short int _flags;
+ pid_t _pgrp;
+ sigset_t _sd;
+ sigset_t _ss;
+ struct sched_param _sp;
+ int _policy;
+ int __pad[16];
+} posix_spawnattr_t;
+
+
+/* Data structure to contain information about the actions to be
+ performed in the new process with respect to file descriptors. */
+#if @REPLACE_POSIX_SPAWN@
+# define posix_spawn_file_actions_t rpl_posix_spawn_file_actions_t
+#endif
+typedef struct
+{
+ int _allocated;
+ int _used;
+ struct __spawn_action *_actions;
+ int __pad[16];
+} posix_spawn_file_actions_t;
+
+
+/* Flags to be set in the `posix_spawnattr_t'. */
+#define POSIX_SPAWN_RESETIDS 0x01
+#define POSIX_SPAWN_SETPGROUP 0x02
+#define POSIX_SPAWN_SETSIGDEF 0x04
+#define POSIX_SPAWN_SETSIGMASK 0x08
+#define POSIX_SPAWN_SETSCHEDPARAM 0x10
+#define POSIX_SPAWN_SETSCHEDULER 0x20
+/* A GNU extension. */
+#define POSIX_SPAWN_USEVFORK 0x40
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+#if @GNULIB_POSIX_SPAWN@
+/* Spawn a new process executing PATH with the attributes describes in *ATTRP.
+ Before running the process perform the actions described in FILE-ACTIONS.
+
+ This function is a possible cancellation points and therefore not
+ marked with __THROW. */
+# if @REPLACE_POSIX_SPAWN@
+# define posix_spawn rpl_posix_spawn
+# endif
+# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
+extern int posix_spawn (pid_t *_Restrict_ __pid,
+ const char *_Restrict_ __path,
+ const posix_spawn_file_actions_t *_Restrict_ __file_actions,
+ const posix_spawnattr_t *_Restrict_ __attrp,
+ char *const argv[_Restrict_arr_],
+ char *const envp[_Restrict_arr_]);
+# endif
+#endif
+
+#if @GNULIB_POSIX_SPAWNP@
+/* Similar to `posix_spawn' but search for FILE in the PATH.
+
+ This function is a possible cancellation points and therefore not
+ marked with __THROW. */
+# if @REPLACE_POSIX_SPAWN@
+# define posix_spawnp rpl_posix_spawnp
+# endif
+# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
+extern int posix_spawnp (pid_t *__pid, const char *__file,
+ const posix_spawn_file_actions_t *__file_actions,
+ const posix_spawnattr_t *__attrp,
+ char *const argv[], char *const envp[]);
+# endif
+#endif
+
+
+#if @GNULIB_POSIX_SPAWNATTR_INIT@
+/* Initialize data structure with attributes for `spawn' to default values. */
+# if @REPLACE_POSIX_SPAWN@
+# define posix_spawnattr_init rpl_posix_spawnattr_init
+# endif
+# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
+extern int posix_spawnattr_init (posix_spawnattr_t *__attr) __THROW;
+# endif
+#endif
+
+#if @GNULIB_POSIX_SPAWNATTR_DESTROY@
+/* Free resources associated with ATTR. */
+# if @REPLACE_POSIX_SPAWN@
+# define posix_spawnattr_destroy rpl_posix_spawnattr_destroy
+# endif
+# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
+extern int posix_spawnattr_destroy (posix_spawnattr_t *__attr) __THROW;
+# endif
+#endif
+
+#if @GNULIB_POSIX_SPAWNATTR_GETSIGDEFAULT@
+/* Store signal mask for signals with default handling from ATTR in
+ SIGDEFAULT. */
+# if @REPLACE_POSIX_SPAWN@
+# define posix_spawnattr_getsigdefault rpl_posix_spawnattr_getsigdefault
+# endif
+# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
+extern int posix_spawnattr_getsigdefault (const posix_spawnattr_t *_Restrict_ __attr,
+ sigset_t *_Restrict_ __sigdefault)
+ __THROW;
+# endif
+#endif
+
+#if @GNULIB_POSIX_SPAWNATTR_SETSIGDEFAULT@
+/* Set signal mask for signals with default handling in ATTR to SIGDEFAULT. */
+# if @REPLACE_POSIX_SPAWN@
+# define posix_spawnattr_setsigdefault rpl_posix_spawnattr_setsigdefault
+# endif
+# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
+extern int posix_spawnattr_setsigdefault (posix_spawnattr_t *_Restrict_ __attr,
+ const sigset_t *_Restrict_ __sigdefault)
+ __THROW;
+# endif
+#endif
+
+#if @GNULIB_POSIX_SPAWNATTR_GETSIGMASK@
+/* Store signal mask for the new process from ATTR in SIGMASK. */
+# if @REPLACE_POSIX_SPAWN@
+# define posix_spawnattr_getsigmask rpl_posix_spawnattr_getsigmask
+# endif
+# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
+extern int posix_spawnattr_getsigmask (const posix_spawnattr_t *_Restrict_ __attr,
+ sigset_t *_Restrict_ __sigmask) __THROW;
+# endif
+#endif
+
+#if @GNULIB_POSIX_SPAWNATTR_SETSIGMASK@
+/* Set signal mask for the new process in ATTR to SIGMASK. */
+# if @REPLACE_POSIX_SPAWN@
+# define posix_spawnattr_setsigmask rpl_posix_spawnattr_setsigmask
+# endif
+# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
+extern int posix_spawnattr_setsigmask (posix_spawnattr_t *_Restrict_ __attr,
+ const sigset_t *_Restrict_ __sigmask)
+ __THROW;
+# endif
+#endif
+
+#if @GNULIB_POSIX_SPAWNATTR_GETFLAGS@
+/* Get flag word from the attribute structure. */
+# if @REPLACE_POSIX_SPAWN@
+# define posix_spawnattr_getflags rpl_posix_spawnattr_getflags
+# endif
+# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
+extern int posix_spawnattr_getflags (const posix_spawnattr_t *_Restrict_ __attr,
+ short int *_Restrict_ __flags) __THROW;
+# endif
+#endif
+
+#if @GNULIB_POSIX_SPAWNATTR_SETFLAGS@
+/* Store flags in the attribute structure. */
+# if @REPLACE_POSIX_SPAWN@
+# define posix_spawnattr_setflags rpl_posix_spawnattr_setflags
+# endif
+# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
+extern int posix_spawnattr_setflags (posix_spawnattr_t *__attr,
+ short int __flags) __THROW;
+# endif
+#endif
+
+#if @GNULIB_POSIX_SPAWNATTR_GETPGROUP@
+/* Get process group ID from the attribute structure. */
+# if @REPLACE_POSIX_SPAWN@
+# define posix_spawnattr_getpgroup rpl_posix_spawnattr_getpgroup
+# endif
+# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
+extern int posix_spawnattr_getpgroup (const posix_spawnattr_t *_Restrict_ __attr,
+ pid_t *_Restrict_ __pgroup)
+ __THROW;
+# endif
+#endif
+
+#if @GNULIB_POSIX_SPAWNATTR_SETPGROUP@
+/* Store process group ID in the attribute structure. */
+# if @REPLACE_POSIX_SPAWN@
+# define posix_spawnattr_setpgroup rpl_posix_spawnattr_setpgroup
+# endif
+# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
+extern int posix_spawnattr_setpgroup (posix_spawnattr_t *__attr,
+ pid_t __pgroup) __THROW;
+# endif
+#endif
+
+#if @GNULIB_POSIX_SPAWNATTR_GETSCHEDPOLICY@
+/* Get scheduling policy from the attribute structure. */
+# if @REPLACE_POSIX_SPAWN@
+# define posix_spawnattr_getschedpolicy rpl_posix_spawnattr_getschedpolicy
+# endif
+# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
+extern int posix_spawnattr_getschedpolicy (const posix_spawnattr_t *_Restrict_ __attr,
+ int *_Restrict_ __schedpolicy)
+ __THROW;
+# endif
+#endif
+
+#if @GNULIB_POSIX_SPAWNATTR_SETSCHEDPOLICY@
+/* Store scheduling policy in the attribute structure. */
+# if @REPLACE_POSIX_SPAWN@
+# define posix_spawnattr_setschedpolicy rpl_posix_spawnattr_setschedpolicy
+# endif
+# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
+extern int posix_spawnattr_setschedpolicy (posix_spawnattr_t *__attr,
+ int __schedpolicy) __THROW;
+# endif
+#endif
+
+#if @GNULIB_POSIX_SPAWNATTR_GETSCHEDPARAM@
+/* Get scheduling parameters from the attribute structure. */
+# if @REPLACE_POSIX_SPAWN@
+# define posix_spawnattr_getschedparam rpl_posix_spawnattr_getschedparam
+# endif
+# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
+extern int posix_spawnattr_getschedparam (const posix_spawnattr_t *_Restrict_ __attr,
+ struct sched_param *_Restrict_ __schedparam) __THROW;
+# endif
+#endif
+
+#if @GNULIB_POSIX_SPAWNATTR_SETSCHEDPARAM@
+/* Store scheduling parameters in the attribute structure. */
+# if @REPLACE_POSIX_SPAWN@
+# define posix_spawnattr_setschedparam rpl_posix_spawnattr_setschedparam
+# endif
+# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
+extern int posix_spawnattr_setschedparam (posix_spawnattr_t *_Restrict_ __attr,
+ const struct sched_param *_Restrict_ __schedparam) __THROW;
+# endif
+#endif
+
+
+#if @GNULIB_POSIX_SPAWN_FILE_ACTIONS_INIT@
+/* Initialize data structure for file attribute for `spawn' call. */
+# if @REPLACE_POSIX_SPAWN@
+# define posix_spawn_file_actions_init rpl_posix_spawn_file_actions_init
+# endif
+# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
+extern int posix_spawn_file_actions_init (posix_spawn_file_actions_t *__file_actions) __THROW;
+# endif
+#endif
+
+#if @GNULIB_POSIX_SPAWN_FILE_ACTIONS_DESTROY@
+/* Free resources associated with FILE-ACTIONS. */
+# if @REPLACE_POSIX_SPAWN@
+# define posix_spawn_file_actions_destroy rpl_posix_spawn_file_actions_destroy
+# endif
+# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
+extern int posix_spawn_file_actions_destroy (posix_spawn_file_actions_t *__file_actions) __THROW;
+# endif
+#endif
+
+#if @GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN@
+/* Add an action to FILE-ACTIONS which tells the implementation to call
+ `open' for the given file during the `spawn' call. */
+# if @REPLACE_POSIX_SPAWN@
+# define posix_spawn_file_actions_addopen rpl_posix_spawn_file_actions_addopen
+# endif
+# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
+extern int posix_spawn_file_actions_addopen (posix_spawn_file_actions_t *_Restrict_ __file_actions,
+ int __fd,
+ const char *_Restrict_ __path,
+ int __oflag, mode_t __mode)
+ __THROW;
+# endif
+#endif
+
+#if @GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE@
+/* Add an action to FILE-ACTIONS which tells the implementation to call
+ `close' for the given file descriptor during the `spawn' call. */
+# if @REPLACE_POSIX_SPAWN@
+# define posix_spawn_file_actions_addclose rpl_posix_spawn_file_actions_addclose
+# endif
+# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
+extern int posix_spawn_file_actions_addclose (posix_spawn_file_actions_t *__file_actions,
+ int __fd)
+ __THROW;
+# endif
+#endif
+
+#if @GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2@
+/* Add an action to FILE-ACTIONS which tells the implementation to call
+ `dup2' for the given file descriptors during the `spawn' call. */
+# if @REPLACE_POSIX_SPAWN@
+# define posix_spawn_file_actions_adddup2 rpl_posix_spawn_file_actions_adddup2
+# endif
+# if !@HAVE_POSIX_SPAWN@ || @REPLACE_POSIX_SPAWN@
+extern int posix_spawn_file_actions_adddup2 (posix_spawn_file_actions_t *__file_actions,
+ int __fd, int __newfd) __THROW;
+# endif
+#endif
+
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* _GL_SPAWN_H */
+#endif /* _GL_SPAWN_H */
--- /dev/null
+# spawn_h.m4 serial 1
+dnl Copyright (C) 2008 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.
+
+dnl Written by Bruno Haible.
+
+AC_DEFUN([gl_SPAWN_H],
+[
+ dnl Use AC_REQUIRE here, so that the default behavior below is expanded
+ dnl once only, before all statements that occur in other macros.
+ AC_REQUIRE([gl_SPAWN_H_DEFAULTS])
+
+ gl_CHECK_NEXT_HEADERS([spawn.h])
+
+ AC_CHECK_HEADERS_ONCE([spawn.h])
+ if test $ac_cv_header_spawn_h = yes; then
+ HAVE_SPAWN_H=1
+ else
+ HAVE_SPAWN_H=0
+ fi
+ AC_SUBST([HAVE_SPAWN_H])
+
+ AC_REQUIRE([AC_C_RESTRICT])
+])
+
+dnl Unconditionally enables the replacement of <spawn.h>.
+AC_DEFUN([gl_REPLACE_SPAWN_H],
+[
+ AC_REQUIRE([gl_SPAWN_H_DEFAULTS])
+ SPAWN_H='spawn.h'
+])
+
+AC_DEFUN([gl_SPAWN_MODULE_INDICATOR],
+[
+ dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
+ AC_REQUIRE([gl_SPAWN_H_DEFAULTS])
+ GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
+])
+
+AC_DEFUN([gl_SPAWN_H_DEFAULTS],
+[
+ GNULIB_POSIX_SPAWN=0; AC_SUBST([GNULIB_POSIX_SPAWN])
+ GNULIB_POSIX_SPAWNP=0; AC_SUBST([GNULIB_POSIX_SPAWNP])
+ GNULIB_POSIX_SPAWN_FILE_ACTIONS_INIT=0; AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_INIT])
+ GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE=0; AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE])
+ GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2=0; AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2])
+ GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN=0; AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN])
+ GNULIB_POSIX_SPAWN_FILE_ACTIONS_DESTROY=0; AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_DESTROY])
+ GNULIB_POSIX_SPAWNATTR_INIT=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_INIT])
+ GNULIB_POSIX_SPAWNATTR_GETFLAGS=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETFLAGS])
+ GNULIB_POSIX_SPAWNATTR_SETFLAGS=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETFLAGS])
+ GNULIB_POSIX_SPAWNATTR_GETPGROUP=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETPGROUP])
+ GNULIB_POSIX_SPAWNATTR_SETPGROUP=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETPGROUP])
+ GNULIB_POSIX_SPAWNATTR_GETSCHEDPARAM=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETSCHEDPARAM])
+ GNULIB_POSIX_SPAWNATTR_SETSCHEDPARAM=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETSCHEDPARAM])
+ GNULIB_POSIX_SPAWNATTR_GETSCHEDPOLICY=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETSCHEDPOLICY])
+ GNULIB_POSIX_SPAWNATTR_SETSCHEDPOLICY=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETSCHEDPOLICY])
+ GNULIB_POSIX_SPAWNATTR_GETSIGDEFAULT=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETSIGDEFAULT])
+ GNULIB_POSIX_SPAWNATTR_SETSIGDEFAULT=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETSIGDEFAULT])
+ GNULIB_POSIX_SPAWNATTR_GETSIGMASK=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETSIGMASK])
+ GNULIB_POSIX_SPAWNATTR_SETSIGMASK=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETSIGMASK])
+ GNULIB_POSIX_SPAWNATTR_DESTROY=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_DESTROY])
+ dnl Assume proper GNU behavior unless another module says otherwise.
+ HAVE_POSIX_SPAWN=1; AC_SUBST([HAVE_POSIX_SPAWN])
+ REPLACE_POSIX_SPAWN=0; AC_SUBST([REPLACE_POSIX_SPAWN])
+ SPAWN_H=''; AC_SUBST([SPAWN_H])
+])
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