Re: [OctDev] isunix() returns 1 under cygwin

[Bill D. <de...@se...>]

One thing that I could see as a good option for this would be for isunix=20
to have variable output arguements.  Perhaps something like [true/false,=20
osname, osversion, distro, distroversion].

Bill

On Mon, 26 Dec 2005, Etienne Grossmann wrote:

>
>  Hi Andy,
>
> thx for the answer. I should have added that I want to use isunix() to
> determine whether I want to execute a (linux) binary called (say)
> 'foo' or a windows binary called 'fooWin.exe'. So I really want isunix
> to return true iff it's Linux - my code will fail on other nixes but
> that's ok for now.
>
>  Cheers,
>
>  Etienne
>
> ps: More in detail on what I'm doing, I'm patching David Lowe's SIFT
>    [1] image feature detector code for Matlab so that it'll run both
>    on Matlab and Octave. His code runs both on Win and Linux.
>
> [1] David G. Lowe, "Distinctive image features from scale-invariant
>    keypoints,"International Journal of Computer Vision, 60, 2 (2004),
>    pp. 91-110.
>
>   http://www.cs.ubc.ca/~lowe/keypoints/
>
>
>
> On Mon, Dec 26, 2005 at 05:16:15PM -0500, Andy Adler wrote:
> # On 12/26/05, Etienne Grossmann <et...@cs...> wrote:
> # > octave:8> help isunix
> # > isunix is the user-defined function from the file
> # > /home=E6tienne/prog=F8ctave=F8ctave-forge=F8ctave-forge/main/general/=
isunix.m
> # >
> # > Always returns true.  If you are on a windows machine, be sure to
> # > put an isunix.m which always returns false in your path.
> #
> # The semantics of 'isunix' depends on what you mean by UNIX.
> # Strictly speaking, only certain well defined OSes are UNIX. Linux,
> # for example, is not.
> #
> # On the other hand, maybe UNIX means OSes that behave like
> # UNIX in most ways. cygwin has UNIX process semantics
> # (ie. fork) and file semantics (symlinks, select on files, etc.)
> #
> # So, is cygwin UNIX? Clearly, a mingwin octave is not unix.
> #
> # Maybe isunix should make a specific test.
> #
> # --
> # Andy
> #
>
> --=20
> Etienne Grossmann ------ http://www.cs.uky.edu/~etienne
>
>
>
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--=20
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