We want to use the USE_MDFILE_AS_MAINPAGE option which was introduced in
doxygen 1.8.3 (released 2012-12).
Right now the new options are commented, otherwise older doxygen spews
these these warnings, which can be ignored:
warning: ignoring unsupported tag `USE_MDFILE_AS_MAINPAGE =' at line 794, file doc/Doxyfile
warning: ignoring unsupported tag `MATHJAX_FORMAT =' at line 1210, file doc/Doxyfile
warning: ignoring unsupported tag `EXTERNAL_SEARCH =' at line 1257, file doc/Doxyfile
warning: ignoring unsupported tag `SEARCHENGINE_URL =' at line 1265, file doc/Doxyfile
warning: ignoring unsupported tag `SEARCHDATA_FILE =' at line 1271, file doc/Doxyfile
warning: ignoring unsupported tag `EXTERNAL_SEARCH_ID =' at line 1278, file doc/Doxyfile
warning: ignoring unsupported tag `EXTRA_SEARCH_MAPPINGS =' at line 1287, file doc/Doxyfile
Signed-off-by: Ran Benita <ran234@gmail.com>