Merge pull request #198 from aniljava/master

build config incorrectly pulls folder named zig if it appears in PATH variable before zig executable

build.zig

@@ -34,6 +34,12 @@ pub fn config(step: *std.build.Step) anyerror!void {
             });
             defer allocator.free(full_path);
 
+            // Skip folders named zig
+            const file = std.fs.openFileAbsolute(full_path, .{}) catch continue;
+            const stat = file.stat() catch continue;
+            const is_dir = stat.kind == .Directory;
+            if (is_dir) continue;
+
             var buf: [std.fs.MAX_PATH_BYTES]u8 = undefined;
             zig_exe_path = try std.mem.dupe(allocator, u8, std.os.realpath(full_path, &buf) catch continue);
             break :find_zig;