diff --git a/src/js/cmdline.js b/src/js/cmdline.js
index 1ba9388..8e8d2bc 100644
--- a/src/js/cmdline.js
+++ b/src/js/cmdline.js
@@ -241,59 +241,35 @@ function ninja(output) {
 		const objs = self.sources.map(pmake.compiler.output).map(function(x) { return self.base + "/" + x; });
 		const sources = self.sources.map(function(x) { return self.base + "/" + x; });
 
-		function add_I(x) {
-			return "-I" + x;
-		}
-
-		function add_L(x) {
-			return "-L" + x;
-		}
-
-		function add_l(x) {
-			return "-l" + x;
-		}
-
-		const incflags = pmake.includes(self).map(add_I).join(" ");
-
-		nk.write("rule cc\n");
-		nk.write("  command = $cc $incs -c -o $out $in\n");
-		nk.write("  deps = gcc\n");
-		nk.write("  depfile = $out.d\n");
-		nk.write("\n");
-
-		nk.write("rule cxx\n");
-		nk.write("  command = $cxx $incs -c -o $out $in\n");
-		nk.write("  deps = gcc\n");
-		nk.write("  depfile = $out.d\n");
-		nk.write("\n");
-
-		if(pmake.compiler.rc) {
-			nk.write("rule rc\n");
-			nk.write("  command = $rc -O coff $in $out\n");
+		function rule(name, dep) {
+			nk.write("rule " + name + "\n");
+			nk.write("  command = $command\n");
+			if(dep) {
+				nk.write("  deps = gcc\n");
+				nk.write("  depfile = $out.d\n");
+			}
 			nk.write("\n");
 		}
 
-		nk.write("rule ar\n");
-		nk.write("  command = $ar rcs $out $in\n");
-		nk.write("\n");
+		rule("cc", pmake.compiler instanceof pmake.POSIXCompiler);
+		rule("cxx", pmake.compiler instanceof pmake.POSIXCompiler);
 
-		nk.write("rule link\n");
-		nk.write("  command = $cxx $libdirs -o $out $in $libs\n");
-		nk.write("\n");
+		if(self.sources.some(function(x) { return x.endsWith(".rc"); })) {
+			rule("rc");
+		}
+
+		rule("ar");
+		rule("link");
 
 		for(var i = 0; i < objs.length; i++) {
 			if(self.sources[i].endsWith(".rc")) {
 				nk.write("build " + objs[i] + ": rc " + sources[i] + "\n");
-				nk.write("  rc = " + pmake.compiler.rc + "\n");
 			} else if(pmake.isCxx(self.sources[i])) {
 				nk.write("build " + objs[i] + ": cxx " + sources[i] + "\n");
-				nk.write("  cc = " + pmake.compiler.cxx + "\n");
-				nk.write("  incs = " + incflags + "\n");
 			} else {
 				nk.write("build " + objs[i] + ": cc " + sources[i] + "\n");
-				nk.write("  cc = " + pmake.compiler.cc + "\n");
-				nk.write("  incs = " + incflags + "\n");
 			}
+			nk.write("  command = " + pmake.compiler.compile(self, objs[i], sources[i]) + "\n");
 			nk.write("\n");
 		}
 
@@ -301,17 +277,13 @@ function ninja(output) {
 
 		if(!(self instanceof pmake.InterfaceProject)) {
 			const libpaths = pmake.libs(self, null, true);
-			const libs = pmake.libs(self, add_l, true);
 
 			if(self instanceof pmake.LibraryProject) {
 				nk.write("build " + output_path + ": ar " + objs.join(" ") + "\n");
-				nk.write("  ar = " + pmake.compiler.ar + "\n");
 			} else {
 				nk.write("build " + output_path + ": link " + objs.join(" ") + (libpaths.length ? " | " + libpaths.join(" ") : "") + "\n");
-				nk.write("  cxx = " + pmake.compiler.cxx + "\n");
-				nk.write("  libdirs = " + pmake.libdirs(self).map(add_L).join(" ") + "\n");
-				nk.write("  libs = " + libs.join(" ") + "\n");
 			}
+			nk.write("  command = " + pmake.compiler.link(self, objs) + "\n");
 			nk.write("\n");
 		}
 	}