Porting bld to linux

test/test_filesystem.c

@@ -1,6 +1,7 @@
 #include "../core.c"
 
 int main() {
+    IO_Printf("test_filesystem.c - ");
     MA_Arena arena = {};
     S8_String read_file_path = S8_Lit("../test/data/read_file");
 
@@ -102,4 +103,5 @@ int main() {
             }
         }
     }
+    IO_Printf("DONE\n");
 }