--- /dev/null
+/* Auxiliary code for filtering of data through a subprocess.
+ Copyright (C) 2012 Free Software Foundation, Inc.
+
+ 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 <http://www.gnu.org/licenses/>. */
+
+#include <config.h>
+
+#define PIPE_FILTER_AUX_INLINE _GL_EXTERN_INLINE
+
+#include "pipe-filter.h"
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <unistd.h>
+#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
+# include <windows.h>
+#else
+# include <signal.h>
+# include <sys/select.h>
+#endif
+
+#include "error.h"
+#include "spawn-pipe.h"
+#include "wait-process.h"
+#include "gettext.h"
+
+#define _(str) gettext (str)
+
+#include "pipe-filter-aux.h"