2 dnl Copyright (C) 2008-2010 Free Software Foundation, Inc.
3 dnl This file is free software; the Free Software Foundation
4 dnl gives unlimited permission to copy and/or distribute it,
5 dnl with or without modifications, as long as this notice is preserved.
7 dnl Written by Bruno Haible.
11 dnl Use AC_REQUIRE here, so that the default behavior below is expanded
12 dnl once only, before all statements that occur in other macros.
13 AC_REQUIRE([gl_SPAWN_H_DEFAULTS])
15 dnl <spawn.h> is always overridden, because of GNULIB_POSIXCHECK.
16 gl_CHECK_NEXT_HEADERS([spawn.h])
18 AC_CHECK_HEADERS_ONCE([spawn.h])
19 if test $ac_cv_header_spawn_h = yes; then
21 AC_CHECK_TYPES([posix_spawnattr_t], [], [HAVE_POSIX_SPAWNATTR_T=0], [[
24 AC_CHECK_TYPES([posix_spawn_file_actions_t], [],
25 [HAVE_POSIX_SPAWN_FILE_ACTIONS_T=0], [[
30 HAVE_POSIX_SPAWNATTR_T=0
31 HAVE_POSIX_SPAWN_FILE_ACTIONS_T=0
34 AC_SUBST([HAVE_SPAWN_H])
36 AC_CHECK_FUNCS_ONCE([posix_spawn])
37 if test $ac_cv_func_posix_spawn != yes; then
41 AC_REQUIRE([AC_C_RESTRICT])
43 dnl Check for declarations of anything we want to poison if the
44 dnl corresponding gnulib module is not in use.
45 gl_WARN_ON_USE_PREPARE([[#include <spawn.h>
46 ]], [posix_spawn posix_spawnp posix_spawnattr_init posix_spawnattr_destroy
47 posix_spawnattr_getsigdefault posix_spawnattr_setsigdefault
48 posix_spawnattr_getsigmask posix_spawnattr_setsigmask
49 posix_spawnattr_getflags posix_spawnattr_setflags
50 posix_spawnattr_getpgroup posix_spawnattr_setpgroup
51 posix_spawnattr_getschedpolicy posix_spawnattr_setschedpolicy
52 posix_spawnattr_getschedparam posix_spawnattr_setschedparam
53 posix_spawn_file_actions_init posix_spawn_file_actions_destroy
54 posix_spawn_file_actions_addopen posix_spawn_file_actions_addclose
55 posix_spawwn_file_actions_adddup2])
58 dnl Unconditionally enables the replacement of <spawn.h>.
59 AC_DEFUN([gl_REPLACE_SPAWN_H],
61 dnl This is a no-op, because <spawn.h> is always overridden.
65 AC_DEFUN([gl_SPAWN_MODULE_INDICATOR],
67 dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
68 AC_REQUIRE([gl_SPAWN_H_DEFAULTS])
69 GNULIB_[]m4_translit([$1],[abcdefghijklmnopqrstuvwxyz./-],[ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=1
70 dnl Define it also as a C macro, for the benefit of the unit tests.
71 gl_MODULE_INDICATOR([$1])
74 AC_DEFUN([gl_SPAWN_H_DEFAULTS],
76 GNULIB_POSIX_SPAWN=0; AC_SUBST([GNULIB_POSIX_SPAWN])
77 GNULIB_POSIX_SPAWNP=0; AC_SUBST([GNULIB_POSIX_SPAWNP])
78 GNULIB_POSIX_SPAWN_FILE_ACTIONS_INIT=0; AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_INIT])
79 GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE=0; AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE])
80 GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2=0; AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2])
81 GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN=0; AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN])
82 GNULIB_POSIX_SPAWN_FILE_ACTIONS_DESTROY=0; AC_SUBST([GNULIB_POSIX_SPAWN_FILE_ACTIONS_DESTROY])
83 GNULIB_POSIX_SPAWNATTR_INIT=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_INIT])
84 GNULIB_POSIX_SPAWNATTR_GETFLAGS=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETFLAGS])
85 GNULIB_POSIX_SPAWNATTR_SETFLAGS=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETFLAGS])
86 GNULIB_POSIX_SPAWNATTR_GETPGROUP=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETPGROUP])
87 GNULIB_POSIX_SPAWNATTR_SETPGROUP=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETPGROUP])
88 GNULIB_POSIX_SPAWNATTR_GETSCHEDPARAM=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETSCHEDPARAM])
89 GNULIB_POSIX_SPAWNATTR_SETSCHEDPARAM=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETSCHEDPARAM])
90 GNULIB_POSIX_SPAWNATTR_GETSCHEDPOLICY=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETSCHEDPOLICY])
91 GNULIB_POSIX_SPAWNATTR_SETSCHEDPOLICY=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETSCHEDPOLICY])
92 GNULIB_POSIX_SPAWNATTR_GETSIGDEFAULT=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETSIGDEFAULT])
93 GNULIB_POSIX_SPAWNATTR_SETSIGDEFAULT=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETSIGDEFAULT])
94 GNULIB_POSIX_SPAWNATTR_GETSIGMASK=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_GETSIGMASK])
95 GNULIB_POSIX_SPAWNATTR_SETSIGMASK=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_SETSIGMASK])
96 GNULIB_POSIX_SPAWNATTR_DESTROY=0; AC_SUBST([GNULIB_POSIX_SPAWNATTR_DESTROY])
97 dnl Assume proper GNU behavior unless another module says otherwise.
98 HAVE_POSIX_SPAWN=1; AC_SUBST([HAVE_POSIX_SPAWN])
99 HAVE_POSIX_SPAWNATTR_T=1; AC_SUBST([HAVE_POSIX_SPAWNATTR_T])
100 HAVE_POSIX_SPAWN_FILE_ACTIONS_T=1;
101 AC_SUBST([HAVE_POSIX_SPAWN_FILE_ACTIONS_T])
102 REPLACE_POSIX_SPAWN=0; AC_SUBST([REPLACE_POSIX_SPAWN])