Add support for env_logger

When RUST_LOG environment variable is set, uses env_logger instead of
our custom logger. This is desirable for debugging purposes.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/lib.rs b/src/lib.rs
index d48ab93b..255215c7 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -33,6 +33,7 @@ extern crate arraydeque;
 extern crate cgmath;
 extern crate copypasta;
 extern crate errno;
+extern crate env_logger;
 extern crate fnv;
 extern crate font;
 extern crate glutin;