diff --git a/src/libs/iconv/iconv.c b/src/libs/iconv/iconv.c
index 9d522051a8..9ed22c8f5f 100644
--- a/src/libs/iconv/iconv.c
+++ b/src/libs/iconv/iconv.c
@@ -162,8 +162,12 @@ static const struct alias sysdep_aliases[] = {
 };
 #if defined(__GNUC__) && !defined(DEBUG)
 __inline
+#else
+#ifdef __cplusplus
+inline
 #endif
-const struct alias *
+#endif
+static const struct alias *
 aliases2_lookup (register const char *str)
 {
   const struct alias * ptr;