Merge pull request #29 from bjz/travis

Call rustc directly in .travis.yml

.travis.sh

@@ -1 +0,0 @@
-`find build -name benchbench` --bench

.travis.yml

@@ -4,6 +4,9 @@ before_install:
 install:
   - sudo apt-get install rust-nightly
 script:
-  - rustpkg test tests
-  - rustpkg build --opt-level=3 bench
-  -  sh .travis.sh
+  - mkdir -p lib bin
+  - rustc --out-dir lib ./src/cgmath/lib.rs
+  - rustc --out-dir bin --test -L ./lib ./src/test/test.rs
+  - rustc --out-dir bin --test -L ./lib ./src/bench/bench.rs
+  - ./bin/test
+#  - ./bin/bench --bench

src/cgmath/sphere.rs

@@ -41,7 +41,7 @@ impl<S: Float> Intersect<Option<Point3<S>>> for (Sphere<S>, Ray3<S>) {
                 let tca = l.dot(&r.direction);
                 if tca < cast(0.0) { return None; }
                 let d2 = l.dot(&l) - tca*tca;
-                if (d2 > s.radius*s.radius) { return None; }
+                if d2 > s.radius*s.radius { return None; }
                 let thc = num::sqrt(s.radius*s.radius - d2);
                 Some(r.origin.add_v(&r.direction.mul_s(tca - thc)))
             }