Try installing new version of lessc

.travis.yml

@@ -2,12 +2,12 @@ language: cpp
 
 os:
   - linux
-  - osx
+  #- osx
 
 env:
   - BUILD=Doc
-  - BUILD=Debug
+  #- BUILD=Debug
-  - BUILD=Release
+  #- BUILD=Release
 
 matrix:
   exclude:

support/travis-build.py

@@ -17,7 +17,11 @@ if build == 'Doc':
   travis = 'TRAVIS' in os.environ
   # Install dependencies.
   if travis:
-    check_call(['sudo', 'apt-get', 'install', 'python-virtualenv', 'doxygen', 'lessc'])
+    with open('/etc/apt/sources.list.d/nodesource.list', 'a') as f:
+      f.write('deb http://deb.nodesource.com/node_0.10 precise main\n')
+    check_call(['sudo', 'apt-get', 'update'])
+    check_call(['sudo', 'apt-get', 'install', 'python-virtualenv', 'doxygen', 'nodejs'])
+    check_call(['npm', 'install', '-g', 'less'])
   cppformat_dir = os.path.dirname(os.path.dirname(os.path.realpath(__file__)))
   sys.path.insert(0, os.path.join(cppformat_dir, 'doc'))
   import build