I discovered today with a test build (with -fvisibility=hidden) followed by
ctest that the plmeta device (remember when we deprecated that?) did not
work because of undefined symbols caused by visibility issues.  Since ctest
doesn't exercise every device I did a comprehensive test for undefined
symbols using the following command in the drivers subdirectory of the build
tree.

for PLUG in *.so; do echo $PLUG; ldd -r 2>&1 $PLUG | grep -i undefined ; done

That command found undefined symbols in a number of devices due to
visibility issues. I have now fixed those visibility issues as of revision
9885, and the above command no longer finds any undefined symbols (and ctest
now works without errors).

Note, I did the above for all (-DDEFAULT_ALL_DEVICES=ON) devices accessible
on my Debian Lenny platform.  Thus, only wingcc (which by its windows-only
nature should have no visibility issues), and pdf (no libharu installed on
my system) have not been covered by this test.

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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