overflow errors

include/append_buffer.h

@@ -7,6 +7,6 @@
 
 void abAppend(struct abuf *ab, const char *s, int len);
 
-void abFree(const struct abuf *ab);
+void abFree(struct abuf *ab);
 
 #endif // APPEND_BUFFER_H_

include/define.h

@@ -13,6 +13,10 @@
 #define TAB "\t"
 #define SPACE "\x20"
 
+#ifndef PATH_MAX
+#define PATH_MAX 1024
+#endif
+
 /* Uncomment to see debug logs on stderr */
 #define APP_DEBUG