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diff --git a/glib/glib/glib-unix.h b/glib/glib/glib-unix.h
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+++ b/glib/glib/glib-unix.h
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+/* glib-unix.h - Unix specific integration
+ * Copyright (C) 2011 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __G_UNIX_H__
+#define __G_UNIX_H__
+
+/* We need to include the UNIX headers needed to use the APIs below,
+ * but we also take this opportunity to include a wide selection of
+ * other UNIX headers.  If one of the headers below is broken on some
+ * system, work around it here (or better, fix the system or tell
+ * people to use a better one).
+ */
+#include <unistd.h>
+#include <errno.h>
+#include <sys/wait.h>
+#include <stdlib.h>
+#include <fcntl.h>
+
+#include <glib.h>
+
+#ifndef G_OS_UNIX
+#error "This header may only be used on UNIX"
+#endif
+
+G_BEGIN_DECLS
+
+/**
+ * G_UNIX_ERROR:
+ *
+ * Error domain for API in the "g_unix_" namespace.  Note that there is
+ * no exported enumeration mapping %errno.  Instead, all functions
+ * ensure that %errno is relevant.  The code for all #G_UNIX_ERROR is
+ * always <literal>0</literal>, and the error message is always
+ * generated via g_strerror().
+ *
+ * It is expected that most code will not look at %errno from these
+ * APIs. Important cases where one would want to differentiate between
+ * errors are already covered by existing cross-platform GLib API,
+ * such as e.g. #GFile wrapping <literal>ENOENT</literal>.  However, it is
+ * provided for completeness, at least.
+ */
+#define G_UNIX_ERROR (g_unix_error_quark())
+
+GLIB_AVAILABLE_IN_2_30
+GQuark g_unix_error_quark (void);
+
+GLIB_AVAILABLE_IN_2_30
+gboolean g_unix_open_pipe (gint    *fds,
+                           gint     flags,
+                           GError **error);
+
+GLIB_AVAILABLE_IN_2_30
+gboolean g_unix_set_fd_nonblocking (gint       fd,
+                                    gboolean   nonblock,
+                                    GError   **error);
+
+GLIB_AVAILABLE_IN_2_30
+GSource *g_unix_signal_source_new  (gint signum);
+
+GLIB_AVAILABLE_IN_2_30
+guint    g_unix_signal_add_full    (gint           priority,
+                                    gint           signum,
+                                    GSourceFunc    handler,
+                                    gpointer       user_data,
+                                    GDestroyNotify notify);
+
+GLIB_AVAILABLE_IN_2_30
+guint    g_unix_signal_add         (gint        signum,
+                                    GSourceFunc handler,
+                                    gpointer    user_data);
+
+G_END_DECLS
+
+#endif  /* __G_UNIX_H__ */