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-rw-r--r--libio/putchar.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/libio/putchar.c b/libio/putchar.c
index a7891a5a2a..7822a31a1a 100644
--- a/libio/putchar.c
+++ b/libio/putchar.c
@@ -26,7 +26,8 @@ putchar (c)
      int c;
 {
   int result;
-  __libc_cleanup_region_start (&_IO_funlockfile, _IO_stdout);
+  __libc_cleanup_region_start ((void (*) __P ((void *))) _IO_funlockfile,
+			       _IO_stdout);
   _IO_flockfile (_IO_stdout);
   result = _IO_putc_unlocked (c, _IO_stdout);
   __libc_cleanup_region_end (1);