gawk on the Atari ST
A proper compilation of gawk sources when sizeof(int)
differs from sizeof(void *) requires an ANSI C compiler. An initial
port was done with gcc. You may actually prefer executables
where ints are four bytes wide, but the other variant works as well.
You may need quite a bit of memory when trying to recompile the gawk
sources, as some source files (`regex.c' in particular) are quite
big. If you run out of memory compiling such a file, try reducing the
optimization level for this particular file; this may help.
With a reasonable shell (Bash will do), and in particular if you run
Linux, MiNT or a similar operating system, you have a pretty good
chance that the configure utility will succeed. Otherwise
sample versions of `config.h' and `Makefile.st' are given in the
`atari' subdirectory and can be edited and copied to the
corresponding files in the main source directory. Even if
configure produced something, it might be advisable to compare
its results with the sample versions and possibly make adjustments.
Some gawk source code fragments depend on a preprocessor define
`atarist'. This basically assumes the TOS environment with gcc.
Modify these sections as appropriate if they are not right for your
environment. Also see the remarks about AWKPATH and envsep in
section Running gawk on the Atari ST.
As shipped, the sample `config.h' claims that the system
function is missing from the libraries, which is not true, and an
alternative implementation of this function is provided in
`atari/system.c'. Depending upon your particular combination of
shell and operating system, you may wish to change the file to indicate
that system is available.
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