Add crate_type attributes to rustc, std, core

Author: brson

src/comp/rustc.rc

@@ -7,7 +7,7 @@
 
 #[desc = "The Rust compiler"];
 #[license = "BSD"];
-
+#[crate_type = "bin"];
 
 use std (name = "std",
          vers = "0.1",

src/libcore/core.rc

@@ -5,7 +5,7 @@
 
 #[comment = "The Rust core library"];
 #[license = "BSD"];
-
+#[crate_type = "lib"];
 
 // Local Variables:
 // mode: rust;

src/libstd/std.rc

@@ -5,7 +5,7 @@
 
 #[comment = "The Rust standard library"];
 #[license = "BSD"];
-
+#[crate_type = "lib"];
 
 export box, char, float, int, str, ptr;
 export uint, u8, u32, u64, vec, bool;