diff --git a/source/app.d b/source/app.d
index 2cf3fd4..9135109 100644
--- a/source/app.d
+++ b/source/app.d
@@ -70,6 +70,10 @@
 		Url registryUrl = Url.parse("http://registry.vibed.org/");
 		logDebug("Using vpm registry url '%s'", registryUrl);
 
+		// FIXME: determine from version() and command line flags
+		auto platform = "windows";
+		auto architecture = "x86";
+
 		// handle the command
 		switch( cmd ){
 			default:
@@ -112,7 +116,7 @@
 					}
 				}
 				flags ~= "-g";
-				flags ~= vpm.dflags;
+				flags ~= vpm.getDflags(platform, architecture);
 				flags ~= getPackagesAsVersion(vpm);
 				flags ~= (mainsrc).toNativeString();
 				flags ~= args[1 .. $];
diff --git a/source/dub/dub.d b/source/dub/dub.d
index da540a7..3075ec0 100644
--- a/source/dub/dub.d
+++ b/source/dub/dub.d
@@ -128,9 +128,10 @@
 	@property string name() const { return m_main ? m_main.name : "app"; }
 
 	/// Returns the DFLAGS
-	@property string[] dflags() const {
+	@property string[] getDflags(string platform, string architecture)
+	const {
 		auto ret = appender!(string[])();
-		if( m_main ) ret.put(m_main.dflags());
+		if( m_main ) ret.put(m_main.getDflags(platform, architecture));
 		ret.put("-Isource");
 		ret.put("-Jviews");
 		foreach( string s, pkg; m_packages ){
@@ -139,7 +140,7 @@
 				if( exists(path) )
 					ret.put(prefix ~ path);
 			}
-			ret.put(pkg.dflags());
+			ret.put(pkg.getDflags(platform, architecture));
 			addPath("-I", "source");
 			addPath("-J", "views");
 		}
@@ -415,7 +416,7 @@
 
 	/// Returns a list of flags which the application needs to be compiled
 	/// properly.
-	@property string[] dflags() { return m_app.dflags; }
+	string[] getDflags(string platform, string architecture) { return m_app.getDflags(platform, architecture); }
 
 	/// Lists all installed modules
 	void list() {
diff --git a/source/dub/package_.d b/source/dub/package_.d
index 2a15078..0cb740f 100644
--- a/source/dub/package_.d
+++ b/source/dub/package_.d
@@ -54,11 +54,24 @@
 	@property string vers() const { return cast(string)m_meta["version"]; }
 	@property const(Url) url() const { return Url.parse(cast(string)m_meta["url"]); }
 	@property const(Dependency[string]) dependencies() const { return m_dependencies; }
-	@property string[] dflags() const {
-		if( "dflags" !in m_meta ) return null;
-		auto flags = m_meta["dflags"].get!(Json[]);
+
+	string[] getDflags(string platform, string architecture)
+	const {
 		auto ret = appender!(string[])();
-		foreach( f; flags ) ret.put(f.get!string);
+		foreach( j; m_meta["dflags"].opt!(Json[]) ) ret.put(j.get!string);
+		foreach( j; m_meta["dflags-"~platform].opt!(Json[]) ) ret.put(j.get!string);
+		foreach( j; m_meta["dflags-"~architecture].opt!(Json[]) ) ret.put(j.get!string);
+		foreach( j; m_meta["dflags-"~platform~"-"~architecture].opt!(Json[]) ) ret.put(j.get!string);
+		return ret.data;
+	}
+
+	string[] getLibs(string platform, string architecture)
+	const {
+		auto ret = appender!(string[])();
+		foreach( j; m_meta["libs"].opt!(Json[]) ) ret.put(j.get!string);
+		foreach( j; m_meta["libs-"~platform].opt!(Json[]) ) ret.put(j.get!string);
+		foreach( j; m_meta["libs-"~architecture].opt!(Json[]) ) ret.put(j.get!string);
+		foreach( j; m_meta["libs-"~platform~"-"~architecture].opt!(Json[]) ) ret.put(j.get!string);
 		return ret.data;
 	}