Possible bug in exec with symlink.

Mo DeJong mdejong@cygnus.com
Tue Dec 5 17:02:00 GMT 2000

On Tue, 5 Dec 2000, Christopher Faylor wrote:

> Cygwin sets the argv[0] to be the name of the file which
> invoked the script.
> In this case, that's 'mygcc'.  'mygcc' is a symbolic link to a script
> which is running a non-cygwin program.  The program is apparently
> looking at argv[0] for some kind of inspiration but is unable to
> decipher cygwin's symlink.

Ahh, yes that is the problem. The Tcl shell is not a Cygwin
app so it does not know how to follow the symlink.

$ ./itcl_sh
% set fd [open ip2k-elf-gcc r]
% read $fd

It tries to run "<symlink>fake_toolchain" and puked on that.

> So, I think that Cygwin is behaving appropriately.
> cgf

Thanks, I guess I will have to find some other way
to implement this.

Mo DeJong
Red Hat Inc

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