add xsltproc to travis config for doc build.

diff --git a/.travis.yml b/.travis.yml
index 9af2c89734f4a8f8b16e158de44d2ec5f1fd08ef..c265f6dc56324ebd0f93e5d0d0497dfa5c91700f 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,7 +4,7 @@ compiler:
   - clang
 before_install:
   - sudo apt-get update -qq
-  - sudo apt-get install -y valgrind expat fop
+  - sudo apt-get install -y valgrind expat fop xsltproc
 script:
  - cd gpsbabel ; ./configure && make -j3 all && make doc && bash ./testo  && bash ./vtesto
 # TODO: build GUI, mac, test-all