ci: Reenable linux with GLES3 configuration on travis

package/ci/travis.yml

@@ -54,14 +54,12 @@ matrix:
     env:
     - TARGET=desktop-gles
     - TARGET_GLES2=ON
-  # Disabled because the Ubuntu 12.04 drivers are missing some ES3 entrypoints
+  - language: cpp
-  # Should be enabled after moving to 14.04
+    os: linux
-  #- language: cpp
+    compiler: gcc
-    #os: linux
+    env:
-    #compiler: gcc
+    - TARGET=desktop-gles
-    #env:
+    - TARGET_GLES2=OFF
-    #- TARGET=desktop-gles
-    #- TARGET_GLES2=OFF
   - language: cpp
     os: osx
     compiler: clang