On 2006-10-17 08:40+0200 Alexander Neundorf wrote:
Later, Alan wrote:
Hi Alex:
The PLplot windows developers are beginning to try libltdl now but they
have
run into an issue which is it is available on Cygwin but doesn't seem to
be
widely available in binary form on bare windows platforms. The obvious
solution is to build it internally. When KDE used this library was that
the
option chosen? If so, could you point me to the CMake files used to build
libltdl? That would save our project some time since I assume there are
lots
of platform-dependent linking issues (since libltdl is simply a wrapper
with
uniform API for whatever platform library is used to do dynamic loading).
Get trunk/KDE/kdelibs/ from some time ago, e.g. june.
Then have a look at kdelibs/kdecore/CMakeLists.txt, I think it is (was)
compiled into libkdecore. There are a bunch of configure checks in
kdelibs/ConfigureChecks.cmake.
I am now looking at revision 543373 (late May this year) in
http://websvn.kde.org/trunk/KDE/kdelibs/kdecore/ and it appears I am getting
close to what I need with ltdl_win.c, ltdl.c and other details of how KDE
built a modified libltdl back then. I also note the 15 configure checks in
kdelibs/ConfigureChecks.cmake that are annotated with #libltdl. That
self-documentation is a big help.
Thanks, Alex, (here and in a further post) and Christian (in another post
about the role of ltdl_win.c on bare windows) for your help in pointing me
in the right direction. It's going to take a while to understand and pull
out the pieces we need from the historical KDE repository and reassemble
something that serves the PLplot project's needs. I will report back here
if/when we have a result that dynamically loads our plug-in modules
correctly on the platforms that we currently test (Linux, Mac OS X, Cygwin,
MinGW/MSYS, and bare windows).
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 Yorick front-end to PLplot (yplot.sf.net); the
Loads of Linux Links project (loll.sf.net); and the Linux Brochure Project
(lbproject.sf.net).
__________________________
Linux-powered Science
__________________________
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