Update .travis.yml

.travis.yml

@@ -3,10 +3,22 @@ language: objective-c
 before_install:
   - brew tap sevki/gcc_cross_compilers
   - brew tap homebrew/dupes
-script: 
-  - brew install x64-elf-gcc
-  - brew install i386-elf-gcc
-  - brew install arm-elf-gcc
+env:
+  - ARCH=x64
+  - ARCH=arm
+  - ARCH=i386
+  - ARCH=i386-jos
+  - ARCH=i586
+script:
+  - brew audit $PACKAGE-elf-binutils
+  - brew audit $PACKAGE-elf-gcc
+  - brew audit $PACKAGE-elf-gdb
+  - brew install -v $PACKAGE-elf-binutils
+  - brew install -v $PACKAGE-elf-gcc
+  - brew install -v $PACKAGE-elf-gdb
+  - brew test $PACKAGE-elf-binutils
+  - brew test $PACKAGE-elf-gcc
+  - brew test $PACKAGE-elf-gdb
 branches:
   only:
     - master