This issue must be second nature to many, and I apologize for the lack of challenge! Would a commercially-available object-code library compiled with GCC be compatible across platforms and/or GCC versions? For example, if I get an object-code-only library to support a certain WiFi peripheral hooked to an SPI on an ARM7, and the manufacturer claims the library was compiled with GCC, does that naturally mean it is compatible with both version 3 and 4 of arm-elf-gcc? Even granted the identical version of arm-elf-gcc, is it also obvious that the same object-code library file would be linkable on different platforms, i.e., Windows, Linux, OS X? Or does gcc require object-code library files to be compiled per-platform? Thanks for any wisdom folks have on this! --Bill