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+/* Auxiliary functions for the creation of subprocesses. OS/2 kLIBC API.
+ Copyright (C) 2001, 2003-2022 Free Software Foundation, Inc.
+ Written by Bruno Haible <bruno@clisp.org>, 2003.
+
+ 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 <https://www.gnu.org/licenses/>. */
+
+#ifndef _OS2_SPAWN_H
+#define _OS2_SPAWN_H
+
+/* Duplicates a file handle, making the copy uninheritable and ensuring the
+ result is none of STDIN_FILENO, STDOUT_FILENO, STDERR_FILENO.
+ Returns -1 for a file handle that is equivalent to closed. */
+extern int dup_safer_noinherit (int fd);
+
+/* Undoes the effect of TEMPFD = dup_safer_noinherit (ORIGFD); */
+extern void undup_safer_noinherit (int tempfd, int origfd);
+
+/* Prepares an argument vector before calling spawn(). */
+extern const char ** prepare_spawn (const char * const *argv,
+ char **mem_to_free);
+
+#endif /* _OS2_SPAWN_H */