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-rw-r--r--locale/programs/localedef.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/locale/programs/localedef.c b/locale/programs/localedef.c
index 206246944f..6290274a72 100644
--- a/locale/programs/localedef.c
+++ b/locale/programs/localedef.c
@@ -279,7 +279,7 @@ cannot `stat' locale file `%s'"),
 	      localedef->categories[cat].generic
 		= mmap (NULL, st.st_size, PROT_READ, MAP_PRIVATE, fd, 0);
 
-	      if (localedef->categories[cat].generic == (void *) -1)
+	      if (localedef->categories[cat].generic == MAP_FAILED)
 		{
 		  size_t left = st.st_size;
 		  void *read_ptr;