linux386 builds. Also, forgot to turn back on the language runtimes.

plat/linux386/build-tools.lua

@@ -0,0 +1,21 @@
+include("plat/build.lua")
+
+build_as {
+	name = "as",
+	arch = "i386",
+}
+
+build_ncg {
+	name = "ncg",
+	arch = "i386",
+}
+
+return installable {
+	name = "tools",
+	map = {
+		["$(PLATDEP)/linux386/as"] = "+as",
+		["$(PLATDEP)/linux386/ncg"] = "+ncg",
+		["$(PLATIND)/descr/linux386"] = "./descr",
+		"util/opt+pkg",
+	}
+}