Re: [Plplot-general] Plplot manual / FAQ - how to compile plplot examples?

[Alan W. I. <ir...@be...>]

On 2009-11-13 09:30+0800 Ludovic Angot wrote:

> Hello Alan,
[...]
> # tar zxvf plplot-5.9.5.tar.gz
> # mkdir build_directory
> # cd build_directory/
> # cmake -DCMAKE_INSTALL_PREFIX:PATH=/home/ludovic/Programs/plplot/plplot-5.9.5/install_directory/
> ..
> # make
> # make install
[...]
> Let's see where we are:
> # pwd
> /home/ludovic/Programs/plplot/plplot-5.9.5
> We copy the examples into a temporary directory:
> # cp -a /home/ludovic/Programs/plplot/plplot-5.9.5/examples
> /home/ludovic/Programs/plplot/plplot-5.9.5/tmp
>
> # cd tmp/examples

You have used an incorrect location for the installed examples
which is the source of your further difficulties. 
Note from above that your install prefix is

/home/ludovic/Programs/plplot/plplot-5.9.5/install_directory

Thus, the installed location of the examples (created by the "make install"
above) is

/home/ludovic/Programs/plplot/plplot-5.9.5/install_directory/share/plplot5.9.5/examples

Instead, above (and also in your further attempts with the new alternative
build and test system for the installed examples) I believe you used the
source-tree location of the examples which is something completely different
(which is why it didn't work).

Just to remind you of the distinctions between the various trees, the source
tree is what you unpack from the tarball (or create with svn checkout), the
build tree is where you build the software, and the install tree is where
the essential subset of the build tree is stored (by "make install" using
the prefix set by -DCMAKE_INSTALL_PREFIX) in a nicely organized fashion.  It
is a good idea to keep source tree, build tree, and install tree completely
separate from each other (which allows removing any one of them without
interfering with the others).  Thus, above, I believe your source-tree
prefix (the top-level directory in the tree) was

/home/ludovic/Programs/plplot/plplot-5.9.5

your build-tree prefix was

/home/ludovic/Programs/plplot/build_directory

and your install-tree prefix was

/home/ludovic/Programs/plplot/plplot-5.9.5/install_directory

The first two are fine, but a better location for the last (so it is not
destroyed when you remove the source tree) is

/home/ludovic/Programs/plplot/install_directory

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).
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Linux-powered Science
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