-# spawn_h.m4 serial 2
-dnl Copyright (C) 2008-2009 Free Software Foundation, Inc.
+# spawn_h.m4 serial 16
+dnl Copyright (C) 2008-2013 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])
if test $ac_cv_header_spawn_h = yes; then
HAVE_SPAWN_H=1
+ AC_CHECK_TYPES([posix_spawnattr_t], [], [HAVE_POSIX_SPAWNATTR_T=0], [[
+#include <spawn.h>
+ ]])
+ AC_CHECK_TYPES([posix_spawn_file_actions_t], [],
+ [HAVE_POSIX_SPAWN_FILE_ACTIONS_T=0], [[
+#include <spawn.h>
+ ]])
else
HAVE_SPAWN_H=0
+ HAVE_POSIX_SPAWNATTR_T=0
+ HAVE_POSIX_SPAWN_FILE_ACTIONS_T=0
fi
AC_SUBST([HAVE_SPAWN_H])
+ dnl Ensure the type pid_t gets defined.
+ AC_REQUIRE([AC_TYPE_PID_T])
+
+ dnl Ensure the type mode_t gets defined.
+ AC_REQUIRE([AC_TYPE_MODE_T])
+
+ 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 Unconditionally enables the replacement of <spawn.h>.
-AC_DEFUN([gl_REPLACE_SPAWN_H],
+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])
- SPAWN_H='spawn.h'
+
+ AC_CHECK_FUNCS_ONCE([posix_spawn])
+ if test $ac_cv_func_posix_spawn != yes; then
+ HAVE_POSIX_SPAWN=0
+ fi
])
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
+ 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],
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])
+ HAVE_POSIX_SPAWN=1; AC_SUBST([HAVE_POSIX_SPAWN])
+ HAVE_POSIX_SPAWNATTR_T=1; AC_SUBST([HAVE_POSIX_SPAWNATTR_T])
+ HAVE_POSIX_SPAWN_FILE_ACTIONS_T=1;
+ AC_SUBST([HAVE_POSIX_SPAWN_FILE_ACTIONS_T])
+ REPLACE_POSIX_SPAWN=0; AC_SUBST([REPLACE_POSIX_SPAWN])
+ REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE=0;
+ AC_SUBST([REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE])
+ REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2=0;
+ AC_SUBST([REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2])
+ REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN=0;
+ AC_SUBST([REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN])
])