works for gcc

src/compiler/watcom.js

@@ -4,5 +4,38 @@ const Watcom = new pmake.Compiler();
 Watcom.target	   = "Watcom";
 Watcom.description = "Open Watcom";
 
-pmake.register(Watcom);
+Watcom.compile = function(target, obj, src) {
+	function add_i(x) {
+		return "-i=" + x;
+	}
+
+	const includes = pmake.includes(target).map(add_i).join(" ");
+	const flags    = "-bt=nt -q " + includes + " -fo=" + obj + " " + src;
+
+	if(src.endsWith(".c")) {
+		return "wcc386 " + flags;
+	} else {
+		return "wpp386 " + flags;
+	}
+	return "";
+};
+
+Watcom.link = function(target, files) {
+	if(target instanceof pmake.LibraryProject) {
+	} else if(target instanceof pmake.ExecutableProject) {
+		function add_file(x) {
+			return "file \"" + x + "\"";
+		}
+
+		function add_library(x) {
+			return "library \"" + x + "\"";
+		}
+
+		return "wlink option quiet system nt name " + this.output(target) + " " + files.map(add_file).join(" ") + " " + pmake.libs(target).map(add_library).join(" ");
+	}
+
+	return "";
+}
+
+	      pmake.register(Watcom);
 })();