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-rw-r--r--libio/fileops.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libio/fileops.c b/libio/fileops.c
index 6d5393cea3..5fd8a9647f 100644
--- a/libio/fileops.c
+++ b/libio/fileops.c
@@ -582,7 +582,7 @@ mmap_remap_check (_IO_FILE *fp)
 	{
 	  /* The file added some pages.  We need to remap it.  */
 	  void *p;
-#ifdef _G_HAVE_MREMAP
+#if _G_HAVE_MREMAP
 	  p = __mremap (fp->_IO_buf_base, ROUNDED (fp->_IO_buf_end
 						   - fp->_IO_buf_base),
 			ROUNDED (st.st_size), MREMAP_MAYMOVE);