how to add changes to cvs?

[tigital]

ok,

...now that I've got the os x stuff working, how does one go about 
getting the changes into the cvs code?  I'm a total newbie with cvs, 
and have heard about "diff's", but don't know how they're made...

...as far as the changes go, I really only added #include's for 
"SDL_endian.h" to a few files, and then used macros from that to 
switch...as a matter of fact, there were already some similar macros 
in pstypes.h (INTEL_SHORT/INTEL_INT), but I'm switching them to the 
SDL_SwapLE16/SDL_SwapLE32 to make them more in line with my other 
changes...it should be noted that these switches aren't hidden by 
check's on the endianness of the system, but instead the macro's are 
defined so that they are empty operations on systems that don't need 
the conversion; and I've been told that good compilers will 
understand this and remove them!

So...what should I do next about this?

tanx,
jamie