Re: [Plplot-devel] PLPLOT_DRV_DIR and PLPLOT_LIB

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

On 2010-11-10 08:50+0100 Arjen Markus wrote:

> On Linux (and OSX?) the first character is a /, so [my commit to
lowercase the first letter of the comparison] should work fine
> too.

I confirm that, and thanks for this fix which should make life a lot
easier for our Windows Visual Studio users.

>
> The crash (assertion failure) I mentioned with one particular setting
> of PLPLOT_DRV_DIR is caused solely by the appearance of files with
> extension ".rc" in the dll\Debug subdirectory when using Visual Studio.
> They are related to "manifest files" for the Fortran DLLs. Perhaps we
> should have a look at the reading procedure for the PLplot .rc files
> to avoid this crash, but it seems rare enough a condition not to put
> much emphasis on that.

I am allergic to letting bugs slide (especially if they involve the
build system) so could you explain the issue further?

On Linux the <top-level-build-tree>/drivers/<driver>.rc files are
configured by cmake (see the logic in
cmake/modules/drivers-finish.cmake).  Those files describe which
devices have been enabled for each device driver.  The test-drv-info
application generates exactly the same information from the driver
plugin that has been built, and there is a cmake custom target
(test_${SOURCE_ROOT_NAME}_dyndriver, see drivers/CMakeLists.txt) for
each driver that checks the two sets of information are identical as a
test that the driver plugin is OK.  As far as I know, these
driver-related *.rc files all should occur in the drivers subdirectory
even on Windows.  Do these files have anything to do with your
troubles above or is it something entirely unrelated?

If the troubles are due to some weird Windows nameclash with the .rc
suffix on the driver-related *.rc files, the motivation for that
choice of suffix is lost in the mists of time, and we could certainly
change that suffix to something else that is much more distinctive
(such as .driver_info).

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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