commit 208f9d5

some mechanism, didnt test

 1@@ -227,7 +227,6 @@ main(int argc, char **argv)
 2 	dump_ast = 0;
 3 	dump_dot = 0;
 4 	dump_graph = 0;
 5-	have_path = 0;
 6 	for (i = 1; i < argc; i++) {
 7 		if (strcmp(argv[i], "-a") == 0) {
 8 			dump_ast = 1;
 9@@ -248,14 +247,35 @@ main(int argc, char **argv)
10 			usage(stderr, argv[0]);
11 			return 1;
12 		} else {
13-			path = argv[i];
14-			have_path = 1;
15+		  // stub fn
16 		}
17 	}
18 	src = readfile(path);
19 	if (!src) {
20+	  /*
21 		fprintf(stderr, "could not read %s\n", path);
22 		return 1;
23+	  */
24+	  /* maybe the makefile is named differently?
25+	   * this is a little ignorant. i wont tell you why */
26+
27+	  char* mks[]={
28+	    "makefile",
29+	    "GNUmakefile",
30+	    "gnumakefile",
31+	    NULL
32+
33+	    /* https://www.gnu.org/software/make/manual/html_node/Makefile-Names.html */
34+	  }
35+
36+	    for(size_t mk=0; mks[mk]!=NULL; ++mk)
37+	      {
38+		path=mks[mk];
39+		src=readfile(path);
40+
41+		if(src) break;
42+		// error later
43+	      }
44 	}
45 	if (parse(path, src, &ast) < 0) {
46 		fprintf(stderr, "parse error in %s\n", path);