Add some const where appropriate.

[tinc] / lib / utils.h

diff --git a/lib/utils.h b/lib/utils.h
index 6ff2082..04c4ddb 100644 (file)
--- a/lib/utils.h
+++ b/lib/utils.h
@@ -39,7 +39,7 @@ extern void hex2bin(char *src, char *dst, int length);
 extern void bin2hex(char *src, char *dst, int length);
 
 #ifdef HAVE_MINGW
-extern char *winerror(int);
+extern const char *winerror(int);
 #define strerror(x) ((x)>0?strerror(x):winerror(GetLastError()))
 #endif