fixes PR #2722, no clue how it broke ...

krakjoe · krakjoe · commit c898349e16e4 · 2017-09-06T11:13:27.000+01:00
diff --git a/ext/mbstring/libmbfl/mbfl/mbfilter.h b/ext/mbstring/libmbfl/mbfl/mbfilter.h
@@ -105,7 +105,7 @@
 #elif defined(_WIN32)
 #define ssize_t __int32
 #elif defined(__GNUC__) && __GNUC__ >= 4
-#define ssize_t __int128
+#define ssize_t long
 #endif
 #endif
 
