-# posix_spawn.m4 serial 6
-dnl Copyright (C) 2008-2010 Free Software Foundation, Inc.
+# posix_spawn.m4 serial 11
+dnl Copyright (C) 2008-2014 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_POSIX_SPAWN_BODY],
[
AC_REQUIRE([gl_SPAWN_H_DEFAULTS])
- AC_CHECK_FUNCS_ONCE([posix_spawn])
+ AC_REQUIRE([gl_HAVE_POSIX_SPAWN])
dnl Assume that when the main function exists, all the others,
dnl except posix_spawnattr_{get,set}sched*, are available as well.
dnl AC_CHECK_FUNCS_ONCE([posix_spawnp])
gl_POSIX_SPAWN_WORKS
case "$gl_cv_func_posix_spawn_works" in
*yes)
+ AC_DEFINE([HAVE_WORKING_POSIX_SPAWN], [1],
+ [Define if you have the posix_spawn and posix_spawnp functions and
+ they work.])
dnl Assume that these functions are available if POSIX_SPAWN_SETSCHEDULER
dnl evaluates to nonzero.
dnl AC_CHECK_FUNCS_ONCE([posix_spawnattr_getschedpolicy])
if (fflush (fp) || fclose (fp))
{
perror ("cannot prepare data file");
- return 1;
+ return 2;
}
/* Avoid reading from our stdin, as it could block. */
posix_spawn_file_actions_destroy (&actions);
errno = err;
perror ("subprocess failed");
- return 1;
+ return 3;
}
posix_spawn_file_actions_destroy (&actions);
status = 0;
if (!WIFEXITED (status))
{
fprintf (stderr, "subprocess terminated with unexpected wait status %d\n", status);
- return 1;
+ return 4;
}
exitstatus = WEXITSTATUS (status);
if (exitstatus != 0)
{
fprintf (stderr, "subprocess terminated with unexpected exit status %d\n", exitstatus);
- return 1;
+ return 5;
}
return 0;
}
&& memcmp (buf, "Halle Potta", 11) == 0)
return 0;
else
- return 2;
+ return 8;
}
static void
])
])
-AC_DEFUN([gl_POSIX_SPAWN_INTERNAL],
+# Prerequisites of lib/spawni.c.
+AC_DEFUN([gl_PREREQ_POSIX_SPAWN_INTERNAL],
[
- AC_LIBOBJ([spawni])
- dnl Prerequisites of lib/spawni.c.
AC_CHECK_HEADERS([paths.h])
AC_CHECK_FUNCS([confstr sched_setparam sched_setscheduler setegid seteuid vfork])
])
+
+AC_DEFUN([gl_FUNC_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE],
+[
+ AC_REQUIRE([gl_SPAWN_H_DEFAULTS])
+ AC_REQUIRE([AC_PROG_CC])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ gl_POSIX_SPAWN
+ if test $REPLACE_POSIX_SPAWN = 1; then
+ REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE=1
+ else
+ dnl On Solaris 11 2011-11, posix_spawn_file_actions_addclose succeeds even
+ dnl if the fd argument is out of range.
+ AC_CACHE_CHECK([whether posix_spawn_file_actions_addclose works],
+ [gl_cv_func_posix_spawn_file_actions_addclose_works],
+ [AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <spawn.h>
+int main ()
+{
+ posix_spawn_file_actions_t actions;
+ if (posix_spawn_file_actions_init (&actions) != 0)
+ return 1;
+ if (posix_spawn_file_actions_addclose (&actions, 10000000) == 0)
+ return 2;
+ return 0;
+}]])],
+ [gl_cv_func_posix_spawn_file_actions_addclose_works=yes],
+ [gl_cv_func_posix_spawn_file_actions_addclose_works=no],
+ [# Guess no on Solaris, yes otherwise.
+ case "$host_os" in
+ solaris*) gl_cv_func_posix_spawn_file_actions_addclose_works="guessing no";;
+ *) gl_cv_func_posix_spawn_file_actions_addclose_works="guessing yes";;
+ esac
+ ])
+ ])
+ case "$gl_cv_func_posix_spawn_file_actions_addclose_works" in
+ *yes) ;;
+ *) REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDCLOSE=1 ;;
+ esac
+ fi
+])
+
+AC_DEFUN([gl_FUNC_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2],
+[
+ AC_REQUIRE([gl_SPAWN_H_DEFAULTS])
+ AC_REQUIRE([AC_PROG_CC])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ gl_POSIX_SPAWN
+ if test $REPLACE_POSIX_SPAWN = 1; then
+ REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2=1
+ else
+ dnl On Solaris 11 2011-11, posix_spawn_file_actions_adddup2 succeeds even
+ dnl if the fd argument is out of range.
+ AC_CACHE_CHECK([whether posix_spawn_file_actions_adddup2 works],
+ [gl_cv_func_posix_spawn_file_actions_adddup2_works],
+ [AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <spawn.h>
+int main ()
+{
+ posix_spawn_file_actions_t actions;
+ if (posix_spawn_file_actions_init (&actions) != 0)
+ return 1;
+ if (posix_spawn_file_actions_adddup2 (&actions, 10000000, 2) == 0)
+ return 2;
+ return 0;
+}]])],
+ [gl_cv_func_posix_spawn_file_actions_adddup2_works=yes],
+ [gl_cv_func_posix_spawn_file_actions_adddup2_works=no],
+ [# Guess no on Solaris, yes otherwise.
+ case "$host_os" in
+ solaris*) gl_cv_func_posix_spawn_file_actions_adddup2_works="guessing no";;
+ *) gl_cv_func_posix_spawn_file_actions_adddup2_works="guessing yes";;
+ esac
+ ])
+ ])
+ case "$gl_cv_func_posix_spawn_file_actions_adddup2_works" in
+ *yes) ;;
+ *) REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDDUP2=1 ;;
+ esac
+ fi
+])
+
+AC_DEFUN([gl_FUNC_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN],
+[
+ AC_REQUIRE([gl_SPAWN_H_DEFAULTS])
+ AC_REQUIRE([AC_PROG_CC])
+ AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+ gl_POSIX_SPAWN
+ if test $REPLACE_POSIX_SPAWN = 1; then
+ REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN=1
+ else
+ dnl On Solaris 11 2011-11, posix_spawn_file_actions_addopen succeeds even
+ dnl if the fd argument is out of range.
+ AC_CACHE_CHECK([whether posix_spawn_file_actions_addopen works],
+ [gl_cv_func_posix_spawn_file_actions_addopen_works],
+ [AC_RUN_IFELSE(
+ [AC_LANG_SOURCE([[
+#include <spawn.h>
+#include <fcntl.h>
+int main ()
+{
+ posix_spawn_file_actions_t actions;
+ if (posix_spawn_file_actions_init (&actions) != 0)
+ return 1;
+ if (posix_spawn_file_actions_addopen (&actions, 10000000, "foo", 0, O_RDONLY)
+ == 0)
+ return 2;
+ return 0;
+}]])],
+ [gl_cv_func_posix_spawn_file_actions_addopen_works=yes],
+ [gl_cv_func_posix_spawn_file_actions_addopen_works=no],
+ [# Guess no on Solaris, yes otherwise.
+ case "$host_os" in
+ solaris*) gl_cv_func_posix_spawn_file_actions_addopen_works="guessing no";;
+ *) gl_cv_func_posix_spawn_file_actions_addopen_works="guessing yes";;
+ esac
+ ])
+ ])
+ case "$gl_cv_func_posix_spawn_file_actions_addopen_works" in
+ *yes) ;;
+ *) REPLACE_POSIX_SPAWN_FILE_ACTIONS_ADDOPEN=1 ;;
+ esac
+ fi
+])
projects / gnulib.git / blobdiff