README for Microwindows 0.88 diffs for uClinux

The file "mwin-0.88.diff.gz" contains the context diffs between the
release version of Microwindows 0.88 and my port to uClinux. It has
only been tested on an Isicad Prisma (an old 68020 based CAD
workstation), running my own port of uClinux, but it shouldn't take
much to adapt the changes for other platforms.

Some points to note are:

+ My Prisma port of uClinux is based on the ColdFire port dated
  5th January 2000.
+ The ColdFire port uses the ELF/FLAT format for executables, this
  avoids the 32K code/data limitation of the PIC/COFF format used
  on other ports of uClinux. If you are using PIC/COFF you are likely
  to run into memory size limits at link time.
+ Something in my Arch.rules breaks the host compiler, this causes
  'convbmp' and 'makebmp' to fail to compile. I haven't been able to
  figure out how to fix this so you need to compile these manually
  first, and copy the executables into src/bin, before doing the main
  build. Use something like this:
    cd mwin/bmp
    cc -I. -I../../include -o convbmp convbmp.c
    cc -I. -I../../include -o makebmp makebmp.c
    mv convbmp makebmp ../../bin
+ Most of the changes are to the Makefiles, the ColdFire tools
  require an explicit link followed by the elf to flat conversion.
+ The three terminal emulators, mterm, nterm and wterm, cannot be
  built because they all need the fork() syscall, which is not
  implemented in uClinux.


George Harvey
21st August 2000