Travis: explicitly install python3.4-dev

Author: Clement Champetier

.travis.yml

@@ -75,7 +75,7 @@ after_failure:
 
 addons:
   apt:
-    sources: ['boost-latest', 'kalakris-cmake', 'kubuntu-backports', 'pythonxy-devel']
+    sources: ['boost-latest', 'kalakris-cmake', 'kubuntu-backports', 'pythonxy-devel', 'deadsnakes']
     packages:
     - cmake
     - swig
@@ -84,7 +84,7 @@ addons:
     - python-imaging
     - python-numpy
     - python-nose
-    - python3-dev
+    - python3.4-dev
     - python3-setuptools
     - python3-nose
     - libfreetype6-dev

libraries/tuttle/CMakeLists.txt

@@ -130,6 +130,7 @@ if (TuttleBoost_FOUND)
     include(${SWIG_USE_FILE})
 
     # Find python c libs
+    set(Python_ADDITIONAL_VERSIONS ${TUTTLE_PYTHON_VERSION})
     find_package(PythonLibs ${TUTTLE_PYTHON_VERSION})
     set(TUTTLE_PYTHON_VERSION ${PYTHONLIBS_VERSION_STRING})
     include_directories(${PYTHON_INCLUDE_DIRS})