Started the work for re-designing the EMX C runtime library to not require
EMX.DLL. The new design is projected to be as follows:
all emx syscalls are replaced with the routines from the old sys.lib library
which is now compilable in both a.out and OMF formats.
the sys.a library should be made replaceable and selectable by some gcc
switch (e.g. -msyslib=emx would link with emx.a instead of sys.a which would
give almost full backward compatibility with emx).
All C functions names were renamed to not contain the starting underscore
(e.g. fopen and not _fopen). The underscored aliases will be added later
with the c_alias library (which will be generated automatically from all
public symbols of libc; any exported symbol that do not start with an
underscore will be given an underscored alias unless such a symbol is already
defined).
Also a lot of updates to the building system. It is now much faster (thanks
to Knut's suggestion of using ash's builtin echo).
Also re-wrote thunk1.asm and thunk2.asm to GAS format; this removes the need
for MASM and makes it possible to use 16-bit functions in a.out programs
without the need for EMX.DLL.
Also made a lot of small changes I don't remember now.