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We save the stacks to an array and store the array for the error handler to
access.
For SAFER, we traverse the array, and deep copy any op arrays (procedures). As
we make these copies, we check for operators that do *not* exist in systemdict,
when we find one, we replace the operator with a name object (of the form
"/--opname--").
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Now we properly "include what we use" let's sanitise the horrid
blah_DEFINED ifdeffery (i.e. kill it where possible).
Also, we update the .c dependencies in the base/psi makefiles to
be correct.
Unfortunately, this new correct set of dependencies causes nmake
to soil itself and die with an out of memory error. After much
experimentation, I've come to the conclusion that this is because
it copes poorly with given the same file as a dependency multiple
times.
Sadly, our style of declaring dependencies in the following style:
foo_h=$(BLAH)/foo.h $(std_h)
bar_h=$(BLAH)/bar.h $(foo_h) $(std_h)
baz_h=$(BLAH)/baz.h $(foo_h) $(std_h)
means that a .obj file that depends on $(foo_h) $(bar_h) and $(baz_h)
ends up depending on foo.h twice, and std.h three times.
I have therefore changed the style of dependencies used to be more
standard.
We still define:
foo_h=$(BLAH)/foo.h
so each .obj file rule can depend on $(foo_h) etc as required, but the
dependencies between each .h file are expressed in normal rules at the
end of the file in a dedicated "# Dependencies" section that we can now
autogenerate.
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Also update copyright dates.
Remove gs_cmdl.ps as we no longer use it, and remove its entry from
psfiles.htm.
Remove xfonts.htm as this feature (xfont support) is long, long gone.
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Squashed into one commit (see branch for details of the evolution of the
branch).
This brings gpcl6 and gxps into the Ghostscript build system, and a shared
set of graphics library object files for all the interpreters.
Also, brings the same configuration options to the pcl and xps products as we
have for Ghostscript.
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