-# spawn_h.m4 serial 5
-dnl Copyright (C) 2008-2009 Free Software Foundation, Inc.
+# spawn_h.m4 serial 11
+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.
dnl once only, before all statements that occur in other macros.
AC_REQUIRE([gl_SPAWN_H_DEFAULTS])
- dnl Execute this unconditionally, because SPAWN_H may be set by other
- dnl modules, after this code is executed.
+ dnl <spawn.h> is always overridden, because of GNULIB_POSIXCHECK.
gl_CHECK_NEXT_HEADERS([spawn.h])
AC_CHECK_HEADERS_ONCE([spawn.h])
fi
AC_SUBST([HAVE_SPAWN_H])
+ AC_REQUIRE([gl_HAVE_POSIX_SPAWN])
+
AC_REQUIRE([AC_C_RESTRICT])
+
+ 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 <spawn.h>
+ ]], [posix_spawn posix_spawnp posix_spawnattr_init posix_spawnattr_destroy
+ posix_spawnattr_getsigdefault posix_spawnattr_setsigdefault
+ posix_spawnattr_getsigmask posix_spawnattr_setsigmask
+ posix_spawnattr_getflags posix_spawnattr_setflags
+ posix_spawnattr_getpgroup posix_spawnattr_setpgroup
+ posix_spawnattr_getschedpolicy posix_spawnattr_setschedpolicy
+ posix_spawnattr_getschedparam posix_spawnattr_setschedparam
+ posix_spawn_file_actions_init posix_spawn_file_actions_destroy
+ posix_spawn_file_actions_addopen posix_spawn_file_actions_addclose
+ posix_spawn_file_actions_adddup2])
+])
+
+dnl Checks whether the system has the functions posix_spawn.
+dnl Sets ac_cv_func_posix_spawn and HAVE_POSIX_SPAWN.
+AC_DEFUN([gl_HAVE_POSIX_SPAWN],
+[
+ 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])
+
+ AC_CHECK_FUNCS_ONCE([posix_spawn])
+ if test $ac_cv_func_posix_spawn != yes; then
+ HAVE_POSIX_SPAWN=0
+ fi
])
dnl Unconditionally enables the replacement of <spawn.h>.
AC_DEFUN([gl_REPLACE_SPAWN_H],
[
- AC_REQUIRE([gl_SPAWN_H_DEFAULTS])
+ dnl This is a no-op, because <spawn.h> is always overridden.
:
])
[
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
+ 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_SPAWN_H_DEFAULTS],