Remove some warnings

5 files changed, 12 insertions, 4 deletions

diff --git a/apps/nshlib/nsh_console.c b/apps/nshlib/nsh_console.c
index 41e992678..de7537bd7 100644
--- a/apps/nshlib/nsh_console.c
+++ b/apps/nshlib/nsh_console.c
@@ -175,10 +175,10 @@ static void nsh_closeifnotclosed(struct console_stdio_s *pstate)
 
 static ssize_t nsh_consolewrite(FAR struct nsh_vtbl_s *vtbl, FAR const void *buffer, size_t nbytes)
 {
+#if CONFIG_NFILE_DESCRIPTORS > 0
   FAR struct console_stdio_s *pstate = (FAR struct console_stdio_s *)vtbl;
   ssize_t ret;
 
-#if CONFIG_NFILE_DESCRIPTORS > 0
   /* The stream is open in a lazy fashion.  This is done because the file
    * descriptor may be opened on a different task than the stream.  The
    * actual open will then occur with the first output from the new task.
@@ -238,7 +238,6 @@ static int nsh_consoleoutput(FAR struct nsh_vtbl_s *vtbl, const char *fmt, ...)
 #else
   va_list ap;
   char *str;
-  int ret;
 
   /* Use avsprintf() to allocate a buffer and fill it with the formatted
    * data
diff --git a/apps/nshlib/nsh_fscmds.c b/apps/nshlib/nsh_fscmds.c
index 26391fa3f..48dad2082 100644
--- a/apps/nshlib/nsh_fscmds.c
+++ b/apps/nshlib/nsh_fscmds.c
@@ -104,6 +104,7 @@ typedef int (*direntry_handler_t)(FAR struct nsh_vtbl_s *, const char *,
  * Private Data
  ****************************************************************************/
 
+#if CONFIG_NFILE_DESCRIPTORS > 0
 /* Common buffer for file I/O.  Note the use of this common buffer precludes
  * multiple copies of NSH running concurrently.  It should be allocated per
  * NSH instance and retained in the "vtbl" as is done for the telnet
@@ -111,6 +112,7 @@ typedef int (*direntry_handler_t)(FAR struct nsh_vtbl_s *, const char *,
  */
 
 static char g_iobuffer[IOBUFFERSIZE];
+#endif
 
 /****************************************************************************
  * Public Data
@@ -142,6 +144,7 @@ static void trim_dir(char *arg)
  * Name: nsh_getdirpath
  ****************************************************************************/
 
+#if CONFIG_NFILE_DESCRIPTORS > 0
 static char *nsh_getdirpath(const char *path, const char *file)
 {
   /* Handle the case where all that is left is '/' */
@@ -158,6 +161,7 @@ static char *nsh_getdirpath(const char *path, const char *file)
   g_iobuffer[PATH_MAX] = '\0';
   return strdup(g_iobuffer);
 }
+#endif
 
 /****************************************************************************
  * Name: foreach_direntry
diff --git a/apps/nshlib/nsh_parse.c b/apps/nshlib/nsh_parse.c
index 68dca6c08..9b45b0e32 100644
--- a/apps/nshlib/nsh_parse.c
+++ b/apps/nshlib/nsh_parse.c
@@ -1306,8 +1306,8 @@ int nsh_parse(FAR struct nsh_vtbl_s *vtbl, char *cmdline)
 #if CONFIG_NFILE_STREAMS > 0
   FAR char *redirfile = NULL;
   int       oflags = 0;
-#endif
   int       fd = -1;
+#endif
   int       argc;
   int       ret;
 
@@ -1654,9 +1654,9 @@ int nsh_parse(FAR struct nsh_vtbl_s *vtbl, char *cmdline)
   else
 #endif
     {
+#if CONFIG_NFILE_STREAMS > 0
       uint8_t save[SAVE_SIZE];
 
-#if CONFIG_NFILE_STREAMS > 0
       /* Handle redirection of output via a file descriptor */
 
       if (vtbl->np.np_redirect)
diff --git a/nuttx/libc/stdio/lib_printf.c b/nuttx/libc/stdio/lib_printf.c
index b035aa14f..178cf9c65 100644
--- a/nuttx/libc/stdio/lib_printf.c
+++ b/nuttx/libc/stdio/lib_printf.c
@@ -42,6 +42,8 @@
  ****************************************************************************/
 
 #include <stdio.h>
+#include <syslog.h>
+
 #include "lib_internal.h"
 
 /****************************************************************************
diff --git a/nuttx/sched/sig_internal.h b/nuttx/sched/sig_internal.h
index 178ff54b9..e9a432092 100644
--- a/nuttx/sched/sig_internal.h
+++ b/nuttx/sched/sig_internal.h
@@ -155,6 +155,9 @@ extern sq_queue_t  g_sigpendingirqsignal;
  ****************************************************************************/
 
 /* Internal signal-related interfaces ***************************************/
+/* Forward references */
+
+struct task_group_s;
 
 /* sig_intialize.c */