Move extra::flate to libflate

This is hopefully the beginning of the long-awaited dissolution of libextra.
Using the newly created build infrastructure for building libraries, I decided
to move the first module out of libextra.

While not being a particularly meaty module in and of itself, the flate module
is required by rustc and additionally has a native C dependency. I was able to
very easily split out the C dependency from rustrt, update librustc, and
magically everything gets installed to the right locations and built
automatically.

This is meant to be a proof-of-concept commit to how easy it is to remove
modules from libextra now. I didn't put any effort into modernizing the
interface of libflate or updating it other than to remove the one glob import it
had.

1 files changed, 0 insertions, 1 deletions

diff --git a/src/libextra/lib.rs b/src/libextra/lib.rs
index fc0cc045175..5a4fedd2b2a 100644
--- a/src/libextra/lib.rs
+++ b/src/libextra/lib.rs
@@ -82,7 +82,6 @@ pub mod rational;
 pub mod complex;
 pub mod stats;
 pub mod semver;
-pub mod flate;
 pub mod hex;
 pub mod uuid;