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diff --git a/nuttx/sched/spawn_internal.h b/nuttx/sched/spawn_internal.h
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+/****************************************************************************
+ * sched/spawn_internal.h
+ *
+ *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+#ifndef __SCHED_SPAWN_INERNAL_H
+#define __SCHED_SPAWN_INERNAL_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+#include <spawn.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Type Definitions
+ ****************************************************************************/
+
+struct spawn_parms_s
+{
+  /* Common parameters */
+
+  int result;
+  FAR pid_t *pid;
+  FAR const posix_spawn_file_actions_t *file_actions;
+  FAR const posix_spawnattr_t *attr;
+  FAR char * const *argv;
+
+  /* Parameters that differ for posix_spawn[p] and task_spawn */
+
+  union
+  {
+    struct
+    {
+      FAR const char *path;
+    } posix;
+    struct
+    {
+      FAR const char *name;
+      main_t entry;
+    } task;
+  } u;
+};
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+extern sem_t g_spawn_parmsem;
+#ifndef CONFIG_SCHED_WAITPID
+extern sem_t g_spawn_execsem;
+#endif
+extern struct spawn_parms_s g_spawn_parms;
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: spawn_semtake and spawn_semgive
+ *
+ * Description:
+ *   Give and take semaphores
+ *
+ * Input Parameters:
+ *
+ *   sem - The semaphore to act on.
+ *
+ * Returned Value:
+ *   None
+ *
+ ****************************************************************************/
+
+void spawn_semtake(FAR sem_t *sem);
+#define spawn_semgive(sem) sem_post(sem)
+
+/****************************************************************************
+ * Name: spawn_execattrs
+ *
+ * Description:
+ *   Set attributes of the new child task after it has been spawned.
+ *
+ * Input Parameters:
+ *
+ *   pid - The pid of the new task.
+ *   attr - The attributes to use
+ *
+ * Returned Value:
+ *   Errors are not reported by this function.  This is because errors
+ *   cannot occur, but ratther that the new task has already been started
+ *   so there is no graceful way to handle errors detected in this context
+ *   (unless we delete the new task and recover).
+ *
+ * Assumptions:
+ *   That task has been started but has not yet executed because pre-
+ *   emption is disabled.
+ *
+ ****************************************************************************/
+
+int spawn_execattrs(pid_t pid, FAR const posix_spawnattr_t *attr);
+
+/****************************************************************************
+ * Name: spawn_proxyattrs
+ *
+ * Description:
+ *   Set attributes of the proxy task before it has started the new child
+ *   task.
+ *
+ * Input Parameters:
+ *
+ *   pid - The pid of the new task.
+ *   attr - The attributes to use
+ *   file_actions - The attributes to use
+ *
+ * Returned Value:
+ *   0 (OK) on successed; A negated errno value is returned on failure.
+ *
+ ****************************************************************************/
+
+int spawn_proxyattrs(FAR const posix_spawnattr_t *attr,
+                     FAR const posix_spawn_file_actions_t *file_actions);
+
+#endif /* __SCHED_SPAWN_INERNAL_H */