Add a "fork" of musl as //fusl.

fusl/include/wctype.h

Index: fusl/include/wctype.h
diff --git a/fusl/include/wctype.h b/fusl/include/wctype.h
new file mode 100644
index 0000000000000000000000000000000000000000..bc2420d3fd84756c11bc575b41224266baf18925
--- /dev/null
+++ b/fusl/include/wctype.h
@@ -0,0 +1,79 @@
+#ifndef _WCTYPE_H
+#define _WCTYPE_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <features.h>
+
+#define __NEED_wint_t
+#define __NEED_wctype_t
+
+#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
+ || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+#define __NEED_locale_t
+#endif
+
+#include <bits/alltypes.h>
+
+typedef const int * wctrans_t;
+
+#undef WEOF
+#define WEOF 0xffffffffU
+
+#undef iswdigit
+
+int       iswalnum(wint_t);
+int       iswalpha(wint_t);
+int       iswblank(wint_t);
+int       iswcntrl(wint_t);
+int       iswdigit(wint_t);
+int       iswgraph(wint_t);
+int       iswlower(wint_t);
+int       iswprint(wint_t);
+int       iswpunct(wint_t);
+int       iswspace(wint_t);
+int       iswupper(wint_t);
+int       iswxdigit(wint_t);
+int       iswctype(wint_t, wctype_t);
+wint_t    towctrans(wint_t, wctrans_t);
+wint_t    towlower(wint_t);
+wint_t    towupper(wint_t);
+wctrans_t wctrans(const char *);
+wctype_t  wctype(const char *);
+
+#ifndef __cplusplus
+#undef iswdigit
+#define iswdigit(a) (0 ? iswdigit(a) : ((unsigned)(a)-'0') < 10)
+#endif
+
+#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \
+ || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+
+int iswalnum_l(wint_t, locale_t);
+int iswalpha_l(wint_t, locale_t);
+int iswblank_l(wint_t, locale_t);
+int iswcntrl_l(wint_t, locale_t);
+int iswdigit_l(wint_t, locale_t);
+int iswgraph_l(wint_t, locale_t);
+int iswlower_l(wint_t, locale_t);
+int iswprint_l(wint_t, locale_t);
+int iswpunct_l(wint_t, locale_t);
+int iswspace_l(wint_t, locale_t);
+int iswupper_l(wint_t, locale_t);
+int iswxdigit_l(wint_t, locale_t);
+int iswctype_l(wint_t, wctype_t, locale_t);
+wint_t towlower_l(wint_t, locale_t);
+wint_t towupper_l(wint_t, locale_t);
+wint_t towctrans_l(wint_t, wctrans_t, locale_t);
+wctrans_t wctrans_l(const char *, locale_t);
+wctype_t  wctype_l(const char *, locale_t);
+
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif