Re: compiling DOS file w/gcc

[Rolf Fiedler <rfie@majestix.ferrari.de>]

On Wed, 14 Oct 1998, Kevin Dahlhausen wrote:

> 
> > Does anyone know if it's possible to compile a DOS-style file with gcc without
> > first converting the file to Unix format?  I would like to make things as easy
> > as possible for our windows users so I don't want to require them to run dos2unix
> > before they compile.  Our compiler is running on  a linux system and the Win95
> > people are accessing their home directories through Samba.  However, the files
> > are in DOS format since we're using SourceSafe for Win95/NT as the source code
> > management tool.
> 
> Yes, I just cross compiled a dos file w/gcc 2.8.1 under linux.
> It worked w/egcs also.

The problem we encountered here is not the c-compiler but the
c-preprocessor. If you consider a macro like this

#define XYZ(a,c,b) \
        ((a)*(b)*(c))

then in unix format you have
#define XYZ(a,b,c) \{LF}

but in dos format this becomes
#define XYZ(a,b,c) \{CR}{LF}

This is then regarded as
#define XYZ(a,b,c) \{Whitespace}{LF}

and therefore the macro XYZ(0,1,2) is expanded to \.
Oooops.

Patching cpp helps in this case.

For the c-compiler one additional whitespace at the end of each line is
not a problem.

> ~~~~~~~~~~~~~~~~~~~ Kevin Dahlhausen ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Morse Controls                                   ap096@po.cwru.edu
> Thought for the day:
>     Book (n): a utensil used to pass time while waiting
>     for the TV repairman.
> 
> ________________________________________________
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> 
kind regards,
Rolf

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