
Rewrite the Makefile in order to avoid the double pass when the tag files already exist. A double pass can still be achieved by doing 'make clean all'.
This directory is for doxygen (a source code documentation system). See http://www.doxygen.org/ for more info. Either run 'make' (Unix) or 'doxy.bat' (Windows) to run doxygen and generate souce code documentation. Then, load either doxy/core/index.html or doxy/core_subset/index.html into your web browser.