1 files changed, 17 insertions, 0 deletions
diff --git a/system/lib/libc/musl/src/multibyte/mblen.c b/system/lib/libc/musl/src/multibyte/mblen.c
new file mode 100644
index 00000000..26d35649
--- /dev/null
+++ b/system/lib/libc/musl/src/multibyte/mblen.c
@@ -0,0 +1,17 @@
+/* 
+ * This code was written by Rich Felker in 2010; no copyright is claimed.
+ * This code is in the public domain. Attribution is appreciated but
+ * unnecessary.
+ */
+
+#include <stdlib.h>
+#include <inttypes.h>
+#include <wchar.h>
+#include <errno.h>
+
+#include "internal.h"
+
+int mblen(const char *s, size_t n)
+{
+	return mbtowc(0, s, n);
+}