Updated. http://www.geocities.co.jp/SiliconValley-SanJose/5153/cygwin-package/doxygen-1.2.18-1-package.tgz CHANGES: compiled with -fno-exceptions and -fno-rtti. > doxygen compiled with -fno-exceptions and -fno-rtti > So I think adding these two options to the list of flags passed to g++ > would be useful.