DOS (Windows 98) build of bison 1.28

[jesse mckeown]

As per request in bison-1.28/readme, having more or less successfully built 
bison with djgpp in windows 98, I am reporting same.  Used relatively 
mindless makefile:

========================================================================
ALL = allocate.o closure.o conflicts.o derives.o files.o getargs.o getopt.o 
getopt1.o gram.o lalr.o lex.o lr0.o main.o nullable.o output.o print.o 
reader.o reduce.o symtab.o warshall.o

bison: $(ALL)
        gcc $(ALL) -o bison.exe

.c.s:
        gcc -S -o $*.s $<

.s.o:
        as -c -o $*.o $<

.c.o:
        gcc -c -o $*.o $<
========================================================================
Required tweaking: even after adjusting files.c the files bison.s1 and 
bison.hairy had to be moved to some picky directory, and bison.s1 had to be 
renamed bison.sim (short for "simple").  I don't know why this is; appart 
from files.c no source file refers to these except by the macros [X]FILE[1].
the form PARAMS ((arglist)) does not seem to be intrinsic to djgpp, so

#define PARAMS(X) X

was added to all source files using it.  Bison seemed to work thereafter.  
Tested with the YACC C specification by Jeff Lee/Jutta Degener from 
http://kbs.cs.tu-berlin.de/~jutta/c/ANSI-C-grammar-y.html
bison reported one shift-reduce conflict.

Many thanks, see you later.

—Jesse McKeown

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