Aaargh!
I've discovered the source of the error. Somewhere between 1.3.24
(default version on Debian stable) and 1.3.28 (version on Ubuntu edgy)
the behaviour of swig changed so the output of "swig -version" was
directed to standard output rather than standard error. This explains
the blank output for SWIG_version_output on Debian stable.
Modification commited to CVS to check ERROR_VARIABLE if
OUTPUT_VARIABLE is blank. Now works again for me.
Andrew
On Tue, Jan 30, 2007 at 08:55:15AM +0000, Andrew Ross wrote:
>
> I'm currently experiencing problems with a fresh cmake build failing
> on my Debian stable system. Problem is that SWIG_VERSION is not being
> set, so the call to TRANSFORM_VERSION in plplot.cmake fails.
>
> Initial investigation suggests that the command
>
> EXECUTE_PROCESS(COMMAND ${SWIG_EXECUTABLE} -version
> OUTPUT_VARIABLE SWIG_version_output
> ERROR_VARIABLE SWIG_version_error
> RESULT_VARIABLE SWIG_version_result)
>
> suceeds, but if I print out SWIG_version_output it is blank.
>
> For reference, the version of swig is 1.3.24. CMake is 2.4.5.
>
> Output of swig -version is (note blank line before and after)
>
> SWIG Version 1.3.24
> Copyright (c) 1995-1998
> University of Utah and the Regents of the University of California
> Copyright (c) 1998-2004
> University of Chicago
> Compiled with g++ [i686-pc-linux-gnu]
>
>
> Any ideas Alan? Does it work on your Debian system?
>
> Andrew
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