I get these errors when runing *ruby1.9 configure *as recommended on the Gridflow website:

*... [gcc64] GNU C++ in 64-bit mode: ----------------------------------------------> missing (runtime error) [libruby] Ruby as a dynamic library: -----------------------------------------> missing (gcc: error: 'rb_rescue' was not declared in this scope) [librubystatic] Ruby as a static library: ------------------------------------> missing (gcc: error: 'rb_rescue' was not declared in this scope) ... [objcpp] GNU/Apple ObjectiveC++ Compiler: ------------------------------------> missing (where is objc/Object.h ?) [quartz] Apple Quartz/Cocoa Display: -----------------------------------------> disabled (would need objcpp) ... [mpeg3] HeroineWarrior LibMPEG3 <libmpeg3/libmpeg3.h>: -----------------------> missing (where is libmpeg3/libmpeg3.h ?) [mpeg3] HeroineWarrior LibMPEG3 <libmpeg3.h>: --------------------------------> found [quicktimeapple] Apple's QuickTime: ------------------------------------------> missing (gcc compilation error) ... [puredata] PureData (or DesireData): -----------------------------------------> disabled (would need libruby or librubystatic) [desiredata] DesireData: -----------------------------------------------------> missing (gcc: error: 'gobj_subscribe' was not declared in this scope) [gem09] PureData GEM (source code) with m_holdname: --------------------------> disabled (would need puredata) [gem08] PureData GEM (source code) without m_holdname: -----------------------> disabled (would need puredata) ...*

I have installed both libruby1.8 and libruby1.9 and thieir dev packages. What do I need to do to make it compile?