build doxygen

.travis.yml

@@ -28,6 +28,6 @@ script:
 #  - valgrind --leak-check=full --error-exitcode=1 ./unittest_${config_suffix}
 #  - ./perftest_${config_suffix}
 
-after_script:
+after_success :
   - cd "${TRAVIS_BUILD_DIR}"
-  - doxygen build/Doxyfile
+  - build/travis_doxygen.sh

build/travis_doxygen.sh

@@ -0,0 +1,16 @@
+#!/bin/sh
+if ["${config}"="release64" && "$CC"="clang"] then exit 0 fi
+
+cd /tmp
+git clone https://github.com/doxygen/doxygen.git
+cd doxygen
+./configure
+make
+make distclean
+git pull
+./configure
+make
+make install
+
+cd "${TRAVIS_BUILD_DIR}
+doxygen build/Doxyfile