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-rw-r--r--locale/weightwc.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/locale/weightwc.h b/locale/weightwc.h
index e42ce13241..ae189658eb 100644
--- a/locale/weightwc.h
+++ b/locale/weightwc.h
@@ -19,6 +19,8 @@
 #ifndef _WEIGHTWC_H_
 #define _WEIGHTWC_H_	1
 
+#include <libc-internal.h>
+
 /* Find index of weight.  */
 static inline int32_t __attribute__ ((always_inline))
 findidx (const int32_t *table,