[CMake] COMMAND does not accept standard method of splitting stderr and stdout results

[David Cole]

If you must run a script verbatim, then write a script.

Then have cmake just execute the script.


On Wed, Mar 17, 2010 at 1:42 PM, Alan W. Irwin <irwin at beluga.phys.uvic.ca>wrote:

> According to "Unix in a Nutshell", the bourne and korn shells use the
> following method of splitting stderr and stdout into two separate
> files.
>
> (cmd >f1) 2>f2
>
> I have checked that the parentheses work for bash, although they are not
> necessary.  Therefore, the above seems to be a good candidate for the best
> way to split stderr and stdout if you want your build system to work for a
> wide variety of bourne (or korn) shell dialects.
>
> However, CMake COMMAND totally buggers the above construct regardless of
> whether VERBATIM is set and regardless of spacing around the parentheses or
> not.  A number of issues occur, but the constant one for all variants that
> I
> tried is the opening parentheses are quoted which is then interpreted as a
> separate command (at least by bash).
>
> Of course, I can always drop the parentheses for my own (bash) needs, and
> then all is well.  But I am concerned that may be a non-standard bashism
> that is being forced on me by CMake that will not work for most/all other
> bourne shell dialects.
>
> Alan
> __________________________
> Alan W. Irwin
>
> Astronomical research affiliation with Department of Physics and Astronomy,
> University of Victoria (astrowww.phys.uvic.ca).
>
> Programming affiliations with the FreeEOS equation-of-state implementation
> for stellar interiors (freeeos.sf.net); PLplot scientific plotting
> software
> package (plplot.org); the libLASi project (unifont.org/lasi); the Loads of
> Linux Links project (loll.sf.net); and the Linux Brochure Project
> (lbproject.sf.net).
> __________________________
>
> Linux-powered Science
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