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-rw-r--r--regex.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/regex.h b/regex.h
index 1bca032024f..1d25ea62e19 100644
--- a/regex.h
+++ b/regex.h
@@ -172,7 +172,11 @@ extern long re_syntax_options;
extern const unsigned char *mbctab;
extern int current_mbctype;
+#ifdef __STDC__
void mbcinit (int);
+#else
+void mbcinit ();
+#endif
#undef ismbchar
#define ismbchar(c) mbctab[(unsigned char)(c)]