prepare strcoll/wcscoll for LC_COLLATE support and add ABI symbols

src/locale/strcoll.c

 #include <string.h>
+#include <locale.h>
+#include "libc.h"
 
-int strcoll(const char *l, const char *r)
+int __strcoll_l(const char *l, const char *r, locale_t loc)
 {
 	return strcmp(l, r);
 }
+
+int strcoll(const char *l, const char *r)
+{
+	return __strcoll_l(l, r, LC_GLOBAL_LOCALE);
+}
+
+weak_alias(__strcoll_l, strcoll_l);

src/locale/strcoll_l.c

-#include <string.h>
-#include <locale.h>
-
-int strcoll_l(const char *l, const char *r, locale_t loc)
-{
-	return strcoll(l, r);
-}

src/locale/wcscoll.c

 #include <wchar.h>
+#include <locale.h>
+#include "libc.h"
 
 /* FIXME: stub */
-int wcscoll(const wchar_t *l, const wchar_t *r)
+int __wcscoll_l(const wchar_t *l, const wchar_t *r, locale_t locale)
 {
 	return wcscmp(l, r);
 }
+
+int wcscoll(const wchar_t *l, const wchar_t *r)
+{
+	return __wcscoll_l(l, r, LC_GLOBAL_LOCALE);
+}
+
+weak_alias(__wcscoll_l, wcscoll_l);

src/locale/wcscoll_l.c

-#include <wchar.h>
-
-int wcscoll_l(const wchar_t *l, const wchar_t *r, locale_t locale)
-{
-	return wcscoll(l, r);
-}