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-rw-r--r--libio/iosetbuffer.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libio/iosetbuffer.c b/libio/iosetbuffer.c
index e44f33962f..d14e5d411e 100644
--- a/libio/iosetbuffer.c
+++ b/libio/iosetbuffer.c
@@ -31,7 +31,7 @@ _IO_setbuffer (fp, buf, size)
      _IO_size_t size;
 {
   CHECK_FILE (fp, );
-  __libc_cleanup_region_start (&_IO_funlockfile, fp);
+  __libc_cleanup_region_start ((void (*) __P ((void *))) _IO_funlockfile, fp);
   _IO_flockfile (fp);
   fp->_flags &= ~_IO_LINE_BUF;
   if (!buf)