Resource.hh: In constructor `Resource<T>::Resource(ResourceManager&, T, const std::string&, const std::string&)':
Resource.hh:74: error: invalid use of undefined type `struct ResourceManager'
Resource.hh:59: error: forward declaration of `struct ResourceManager'
Resource.hh: In destructor `virtual Resource<T>::~Resource()':
Resource.hh:77: error: invalid use of undefined type `struct ResourceManager'
Resource.hh:59: error: forward declaration of `struct ResourceManager'
make[3]: *** [Basemenu.o] Error 1
make[3]: Leaving directory `/home/raven/fluxbox-0.1.14/src'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/home/raven/fluxbox-0.1.14/src'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/raven/fluxbox-0.1.14'
make: *** [all] Error 2

Thanks for all help,
Raven Manor

0.1.14 .. mmm why not build flux - 0.9

i note on the flux website (for flux0.9)

Bug fixes: * Compiles with gcc 3.4

unfortunately your gcc version is probably 'too new' (no seriously). most improvements to gcc actually enforce stricter rules on code and therefore break older packages.