var8x Mac OSX Additional Support patch

--- var8x.c.orig    2015-09-04 23:45:27.000000000 -0400
+++ var8x.c 2015-09-04 23:44:36.000000000 -0400
@@ -1,6 +1,16 @@
 #include <stdio.h>
 #include <stdlib.h>

+#ifdef __APPLE__
+#define STRNICMP2(x,y) strncasecmp(x,y,strlen(x))
+#define STRNICMP3(x,y,z) strncasecmp(x,y,z)
+// replace strnicmp invocations with strncasecmp
+// the magic below let's us have a multiple argument macro overloader
+// we need this since the code below calls strnicmp() with 2 and 3 args.
+#define GET_MACRO(_1,_2,_3,NAME,...) NAME
+#define strnicmp(...) GET_MACRO(__VA_ARGS__, STRNICMP3, STRNICMP2)(__VA_ARGS__)
+#endif
+
 enum header_type {
     header_raw,
     header_zshell4,