Add gettext to Travis build

Signed-off-by: Craig Robbins <kde.psych@gmail.com>

.travis.yml

@@ -4,11 +4,11 @@ compiler:
   - clang
 before_install:
   - if [ $CC = "clang" ]; then export PATH="/usr/bin/:$PATH"; sudo sh -c 'echo "deb http://ppa.launchpad.net/eudoxos/llvm-3.1/ubuntu precise main" >> /etc/apt/sources.list'; sudo apt-key adv --keyserver pool.sks-keyservers.net --recv-keys 92DE8183; sudo apt-get update; sudo apt-get install llvm-3.1; sudo apt-get install clang; fi
-  - sudo apt-get install libirrlicht-dev cmake libbz2-dev libpng12-dev libjpeg8-dev libxxf86vm-dev libgl1-mesa-dev libsqlite3-dev libogg-dev libvorbis-dev libopenal-dev
+  - sudo apt-get install libirrlicht-dev cmake libbz2-dev libpng12-dev libjpeg8-dev libxxf86vm-dev libgl1-mesa-dev libsqlite3-dev libogg-dev libvorbis-dev libopenal-dev gettext
 script:
   - mkdir -p travisbuild
   - cd travisbuild
-  - cmake ..
+  - cmake -DENABLE_GETTEXT=1 ..
   - make -j2
 notifications:
   email: false