mingw: enable atomic O_APPEND

diff --git a/strbuf.h b/strbuf.h
index c4de5e4588bd4326d363b9387599cd94e29d2f8f..60a35aef165ca1a1bdc20b005751ea70e3c49ee0 100644 (file)
--- a/strbuf.h
+++ b/strbuf.h
@@ -632,6 +632,7 @@ __attribute__((format (printf,2,3)))
 extern int fprintf_ln(FILE *fp, const char *fmt, ...);
 
 char *xstrdup_tolower(const char *);
+char *xstrdup_toupper(const char *);
 
 /**
  * Create a newly allocated string using printf format. You can do this easily