> So, you are suggesting I create CFLAGS_ZLIB ....
There are multiple ways to change variables in makefile. I think, it is much faster to try and see what happens, than wait for approval....
> On a related note. Where do I specify USE_X3FTOOLS and USE_6BY9RPI
Again: there are multiple ways.The easiest one is to modify COPT=... line
>Do, I need download the sources
No, both X3F_TOOLS and RPI-related code is already in place. It is just not compiled until user explicitly selects it (via specific defines, so /D.... statements in msvc case)
> So, you are suggesting I create CFLAGS_ZLIB ....
There are multiple ways to change variables in makefile. I think, it is much faster to try and see what happens, than wait for approval....
> On a related note. Where do I specify USE_X3FTOOLS and USE_6BY9RPI
Again: there are multiple ways.The easiest one is to modify COPT=... line
>Do, I need download the sources
No, both X3F_TOOLS and RPI-related code is already in place. It is just not compiled until user explicitly selects it (via specific defines, so /D.... statements in msvc case)