diff --git a/Makefile b/Makefile
index 54c3f67..6b2bfc6 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-.PHONY: all test
+.PHONY: all test try-luajit try-lua
 
 all:
 	./util/mirror-tarballs
@@ -10,5 +10,5 @@ try-luajit: all
 	cd ngx_openresty-`./util/ver` && ./configure --with-luajit
 
 try-lua: all
-	cd ngx_openresty-`./util/ver` && ./configure
+	cd ngx_openresty-`./util/ver` && ./configure && $(MAKE)
 
diff --git a/t/Config.pm b/t/Config.pm
index 8c67f5f..0cf53f2 100644
--- a/t/Config.pm
+++ b/t/Config.pm
@@ -60,6 +60,18 @@ sub run_test ($) {
     is($stdout, $expected_out, "$name - stdout ok");
     is($stderr, $expected_err, "$name - stderr ok");
     is($retval >> 8, $expected_exit, "$name - exit code ok");
+
+    if (defined $block->makefile) {
+        open my $in, "Makefile" or
+            die "cannot open Makefile for reading: $!";
+        my $got = do { local $/; <$in> };
+        close $in;
+
+        my $expected_makefile = $block->makefile;
+        $expected_makefile =~ s/\$OPENRESTY_BUILD_DIR\b/$BuildRoot/gs;
+
+        is($got, $expected_makefile, "$name - Makefile ok");
+    }
 }
 
 sub shell (@) {
diff --git a/t/sanity.t b/t/sanity.t
index 3922980..dd29fd6 100644
--- a/t/sanity.t
+++ b/t/sanity.t
@@ -2,7 +2,7 @@
 
 use t::Config;
 
-plan tests => 3 * blocks();
+plan tests => 3 * blocks() + 3;
 
 #no_diff();
 
@@ -199,6 +199,19 @@ cd nginx-0.8.54
   --add-module=../rds-json-nginx-module-0.11rc2 \
   --with-http_ssl_module
 cd ../..
+--- makefile
+.PHONY: all install
+
+all:
+	cd build/lua-5.1.4 && $(MAKE) linux
+	cd build/nginx-0.8.54 && $(MAKE)
+
+install:
+	cd build/lua-5.1.4 && $(MAKE) install INSTALL_TOP=$(DESTDIR)/usr/local/openresty/lua
+	cd build/nginx-0.8.54 && $(MAKE) install DESTDIR=$(DESTDIR)
+
+clean:
+	rm -rf build
 
 
 
@@ -234,6 +247,19 @@ cd nginx-0.8.54
   --add-module=../rds-json-nginx-module-0.11rc2 \
   --with-http_ssl_module
 cd ../..
+--- makefile
+.PHONY: all install
+
+all:
+	cd build/lua-5.1.4 && $(MAKE) linux
+	cd build/nginx-0.8.54 && $(MAKE)
+
+install:
+	cd build/lua-5.1.4 && $(MAKE) install INSTALL_TOP=$(DESTDIR)/usr/local/openresty/lua
+	cd build/nginx-0.8.54 && $(MAKE) install DESTDIR=$(DESTDIR)
+
+clean:
+	rm -rf build
 
 
 
@@ -278,4 +304,17 @@ cd nginx-0.8.54
   --with-ld-opt='-Wl,-rpath=/usr/local/openresty/luajit/lib' \
   --with-http_ssl_module
 cd ../..
+--- makefile
+.PHONY: all install
+
+all:
+	cd build/LuaJIT-2.0.0-beta6 && $(MAKE) PREFIX=/usr/local/openresty/luajit
+	cd build/nginx-0.8.54 && $(MAKE)
+
+install:
+	cd build/LuaJIT-2.0.0-beta6 && $(MAKE) install PREFIX=/usr/local/openresty/luajit DESTDIR=$(DESTDIR)
+	cd build/nginx-0.8.54 && $(MAKE) install DESTDIR=$(DESTDIR)
+
+clean:
+	rm -rf build
 
diff --git a/util/configure b/util/configure
index 3937712..534e08e 100755
--- a/util/configure
+++ b/util/configure
@@ -133,6 +133,7 @@ push @make_install_cmds, "cd build/$ngx_dir && "
     . "\$(MAKE) install DESTDIR=\$(DESTDIR)";
 
 cd '../..'; # to the root
+#die "pwd: " .. `pwd`;
 
 gen_makefile();
 
@@ -513,8 +514,13 @@ sub gen_makefile {
     open my $out, ">Makefile" or
         die "Cannot open Makefile for writing: $!\n";
 
+    print $out ".PHONY: all install\n\n";
+
     print $out "all:\n\t" . join("\n\t", @make_cmds) . "\n\n";
-    print $out "install:\n\t" . join("\n\t", @make_install_cmds) . "\n";
+
+    print $out "install:\n\t" . join("\n\t", @make_install_cmds) . "\n\n";
+
+    print $out "clean:\n\trm -rf build\n";
 
     close $out;
 }