shithub: femtolisp

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use _XOPEN_SOURCE instead of manually prototyping wcwidth, also avoids a
conflict in musl

--- a/llt/utf8.c

+++ b/llt/utf8.c

@@ -12,6 +12,7 @@

   valid.

   A UTF-8 validation routine is included.

 */

+#define _XOPEN_SOURCE 700

 #include <stdlib.h>

 #include <stdio.h>

 #include <string.h>

--- a/llt/utf8.h

+++ b/llt/utf8.h

@@ -16,7 +16,7 @@

 extern int locale_is_utf8;

-#if defined(__WIN32__) || defined(__linux__)

+#if defined(__WIN32__)

 extern int wcwidth(uint32_t);

 #endif