From:	cgf AT bbc DOT com (Chris Faylor)
Subject:	Re: Redirect the stderr GCC stream to file, executing from
	Ms-Dosshell
2 Oct 1997 06:22:39 -0700 :
Message-ID:	<EHFCsE.1I9.cygnus.gnu-win32@bbc.com>
References:	<01BCCE53 DOT F7289290 AT gater DOT krystalbank DOT msk DOT ru>
Reply-To:	cgf AT bbc DOT com
To:	gnu-win32 AT cygnus DOT com

In article <EHDp53 DOT 37t AT bbc DOT com>, Chris Faylor <cgf AT bbc DOT com> wrote:
>In article <01BCCE53 DOT F7289290 AT gater DOT krystalbank DOT msk DOT ru>,
>Sergey Okhapkin  <sos AT prospect DOT com DOT ru> wrote:
>>Chris Faylor wrote:
>>> In article <199709301048 DOT MAA00599 AT ammi DOT mclink DOT it>,
>>> Giandomenico De Sanctis <mc4420 AT mclink DOT it> wrote:
>>> >How to redirect the stderr stream to a file, running GCC from MS-Dos
>>> >command prompt, and not from Unix-like shell as bash??
>>> 
>>> gcc whatever 2>wherever
>>
>>This works with NT4.0 cmd.exe only, but not with 95's command.com.
>
>Right.  Sorry to have not mentioned that.
>
>Other alternatives are:
>
>1) Use 4DOS ( http://www.jpsoft.com ), which allows '>&' for redirection.
>
>2) Write a small program to redirect stderr to stdout and run its
>   arguments.

Just to follow up on my own points:  The command I gave originally
does work on NT 3.51.  That's all I'm running here.

Someone asked for the small program.  This is it:

Create a file called 'stderr.c':

int
main(int argc, char **argv)
{
  dup2(1, 2);
  argv++;
  execvp(*argv, argv);
  perror(*argv);
  exit(1);
}

Compile this:

gcc -o stderr -g stderr.c

The program stderr will redirect all error output to the same place as
stdout:

stderr gcc -c stderr.c > gcc.out

This will probably only work with cygwin.dll programs, though.

In a vain attempt to hold off on future messages, I'd like to point out
that I know that it is possible to make this into a much more sophisticated
program which takes an argument signifying a file for the stderr output.
It is possible to augment this program to shine your shoes and walk the dog.
There are undoubtedly much more sophisticated programs out there which
will do exactly what is required and do it intuitively without even the
necessity of typing the command at all.

Personally, I would again strongly suggest that anyone who can't use
bash for this should consider 4DOS.  It is a wonderful command line
shell which provides you all sorts of advanced capabilities lacking in
command.com or cmd.exe.

	http://www.jpsoft.com
-- 
http://www.bbc.com/	cgf AT bbc DOT com			"Strange how unreal
VMS=>UNIX Solutions	Boston Business Computing	 the real can be."
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