I found that if you're using a newer version of GCC (I'm using TDM-GCC 4.7), its become more strict about how templated functions may be invoked. You will receive an error that template functions are being invoked before they are defined, and you have to either:
- Add -fpermissive to your compile flags, or
- Put forward declarations for the template methods in rapidxml_print.h
Compiling with -O3 seems to result in a crash deep inside libstdc++, however this appears to be the fault of TDM-GCC and not Horde itself. Building with -O2 and adding forward declarations as above, appears to build and run without incident.