Merge pull request #3 from bspeice/static

Enable static builds

.travis.yml

@@ -18,7 +18,7 @@ script:
   - cd aeron_driver-sys
   - cargo test
   - cargo test --release
-  #- cargo test --features "static"
+  - cargo test --features "static"
 
   - cd ..
   - cargo test

aeron_driver-sys/build.rs

@@ -46,6 +46,19 @@ pub fn main() {
         link_type.link_lib(),
         link_type.target_name()
     );
+
+    match link_type {
+        LinkType::Static => {
+            // On Windows, there are some extra libraries needed for static link
+            // that aren't included by Aeron.
+            if cfg!(target_os = "windows") {
+                println!("cargo:rustc-link-lib=shell32");
+                println!("cargo:rustc-link-lib=iphlpapi");
+            }
+        }
+        _ => (),
+    };
+
     let cmake_output = Config::new(&aeron_path)
         .build_target(link_type.target_name())
         .build();