1 files changed, 8 insertions, 0 deletions
diff --git a/src/ctype/toupper.c b/src/ctype/toupper.c
index 1799f030..bbf4e06e 100644
--- a/src/ctype/toupper.c
+++ b/src/ctype/toupper.c
@@ -1,7 +1,15 @@
 #include <ctype.h>
+#include "libc.h"
 
 int toupper(int c)
 {
 	if (islower(c)) return c & 0x5f;
 	return c;
 }
+
+int __toupper_l(int c, locale_t l)
+{
+	return toupper(c);
+}
+
+weak_alias(__toupper_l, toupper_l);