Implement setlocale() stub (#43)

libc/unicode/locale.h

@@ -0,0 +1,26 @@
+#ifndef COSMOPOLITAN_LIBC_UNICODE_LOCALE_H_
+#define COSMOPOLITAN_LIBC_UNICODE_LOCALE_H_
+
+#define LC_CTYPE         0
+#define LC_NUMERIC       1
+#define LC_CTYPE_MASK    1
+#define LC_TIME          2
+#define LC_NUMERIC_MASK  2
+#define LC_COLLATE       3
+#define LC_MONETARY      4
+#define LC_TIME_MASK     4
+#define LC_MESSAGES      5
+#define LC_ALL           6
+#define LC_COLLATE_MASK  8
+#define LC_MONETARY_MASK 16
+#define LC_MESSAGES_MASK 32
+#define LC_ALL_MASK      0x1fbf
+
+#if !(__ASSEMBLER__ + __LINKER__ + 0)
+COSMOPOLITAN_C_START_
+
+char *setlocale(int, const char *);
+
+COSMOPOLITAN_C_END_
+#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
+#endif /* COSMOPOLITAN_LIBC_UNICODE_LOCALE_H_ */