Re: Problem with echo in tcsh 6.13.00-2 in Cygwin 1.5.10 (fwd)

[David Mastronarde <mast at bio3d dot Colorado dot EDU>]

On Fri, 16 Jul 2004, David Mastronarde wrote:

> On Mon, 12 Jul 2004, David Mastronarde wrote:
> 
> > 
> > The latest version of tcsh has a problem with the built-in echo.
> > When echo is used to write to a file from within a script, and then the
> > script runs a program that attempts to open the file, the program is not
> > able to open the file.
> > 
> > The attachment has a sample program, fortopen.f, which gave the problem 
> > when compiled with the Intel Fortran compiler.  A C program using
> > fopen did not show the problem.  The problem also does not occur when the
> > program is compiled with g77 under Cygwin.  The executable made the tar 
> > file too large for your mail program, so it is not included.  (Please 
> > tell me a better email address to use if you need it from me.)
> > 
> > The script echotest uses echo to write to a file, then runs fortopen which 
> > tries to open the file.  It does it first with echo piped to cat, and with 
> > /bin/echo, which do not fail, then it does it with the built-in echo, 
> > which fails with permission denied.
> > 
> > The problem occurs only with tcsh 6.13, not tcsh 6.12 (see two output 
> > files).
> > 
> > I am running Windows XP SP1.
> > 
> > Thanks.
> > 
> > David Mastronarde
> > 
> Me too.  I've build your test application and ran it under tcsh 6.13.00
> and I had no problem with it:
> 
> $ uname -a
> CYGWIN_NT-5.1 cathi 1.5.10(0.116/4/2) 2004-05-25 22:07 i686 unknown 
> unknown Cygwin
> $ echo $version
> tcsh 6.13.00 (Astron) 2004-05-19 (i386-intel-posix) options 
> 8b,nls,dl,al,kan,rh,color,dspm
> $ g77 -o fortopen fortopen.f
> $ ls -l
> total 82
> -rw-r--r--    1 corinna  root        17151 Jul 12 22:10 cygcheck.out
> -rw-r--r--    1 corinna  root          515 Jul 12 22:13 echoout.6.12
> -rw-r--r--    1 corinna  root          746 Jul 12 22:15 echoout.6.13
> -rwxr-xr-x    1 corinna  root          363 Jul  8 23:10 echotest
> -rwxr-xr-x    1 corinna  root        60868 Jul 12 23:08 fortopen.exe
> -rwxr-xr-x    1 corinna  root          372 Jul  8 22:56 fortopen.f
> -rw-r--r--    1 corinna  root           12 Jul 12 23:12 tempfile
> $ ./echotest 
> Trying with echo pipe to cat
> 0000000 061 040 060 040 060 040 061 040 060 040 060 012
> 0000014
> -rw-r--r--    1 corinna  root           12 Jul 12 23:26 tempfile
>  File Opened OK
> Trying with /bin/echo
> 0000000 061 040 060 040 060 040 061 040 060 040 060 012
> 0000014
> -rw-r--r--    1 corinna  root           12 Jul 12 23:26 tempfile
>  File Opened OK
> Trying with built-in echo
> 0000000 061 040 060 040 060 040 061 040 060 040 060 012
> 0000014
> -rw-r--r--    1 corinna  root           12 Jul 12 23:26 tempfile
>  File Opened OK
> $
> 
> 
> Corinna
> 

I already indicated that the problem will not appear when the program is 
compiled with g77.  I would be glad to send you the program compiled with 
the Intel compiler, but a statically linked version of even such a simple 
program is 245K and only compresses to 115K, so I was not able to send it 
to this list.  Is there another address that will accept this file?

David


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