From 64e423a49c86bd3401d3816a6f7ffb3f1c9ff7b6 Mon Sep 17 00:00:00 2001
From: Gregory Nutt <gnutt@nuttx.org>
Date: Wed, 22 Aug 2018 09:54:37 -0600
Subject: [PATCH] apps/builtin/exec_builtin.c:  Fix a error introduced by
 recent comments.  Found in build testing.

---
 builtin/exec_builtin.c | 22 ++++++++++++++--------
 1 file changed, 14 insertions(+), 8 deletions(-)

diff --git a/builtin/exec_builtin.c b/builtin/exec_builtin.c
index df35e58eb..05ccce779 100644
--- a/builtin/exec_builtin.c
+++ b/builtin/exec_builtin.c
@@ -181,20 +181,26 @@ int exec_builtin(FAR const char *appname, FAR char * const *argv,
         }
     }
 
-  /* Start the built-in */
+#idef CONFIG_LIBC_EXECFUNCS
+  /* A NULL entry point implies that the task is a loadable application */
 
-  if (builtin->main)
-    {
-      ret = task_spawn(&pid, builtin->name, builtin->main, &file_actions,
-                       &attr, (argv) ? &argv[1] : (FAR char * const *)NULL,
-                       (FAR char * const *)NULL);
-    }
-  else
+  if (builtin->main == NULL)
     {
+      /* Load and execute the application. */
+
       ret = posix_spawn(&pid, builtin->name, &file_actions,
                         &attr, (argv) ? &argv[1] : (FAR char * const *)NULL,
                         NULL);
     }
+  else
+#endif
+    {
+      /* Start the built-in */
+
+      ret = task_spawn(&pid, builtin->name, builtin->main, &file_actions,
+                       &attr, (argv) ? &argv[1] : (FAR char * const *)NULL,
+                       (FAR char * const *)NULL);
+    }
 
   if (ret != 0)
     {