On 2015-02-20 12:40-0000 Arjen Markus wrote: > I want to build PLplot on Linux in such a way that all the components (drivers and supporting libraries like nn and csa) are retrieved via the LD_LIBRARY_PATH variable. The path must not be hard-coded. What CMake do we have for that?
Use the cmake command-line option -DUSE_RPATH=OFF (which normally defaults to ON) for our build system in order to turn off setting rpath for our installed libraries. This is necessary in order to allow LD_LIBRARY_PATH to work since the Unix run-time loaders always ignore LD_LIBRARY_PATH for a particular library if rpath is set for that library. This Linux behaviour of rpath (if set) always superseding LD_LIBRARY_PATH is inherited from POSIX. There have been many debates about this behaviour in the Debian community because many there would prefer a different behaviour where (hard-coded) rpath was simply a last-resort if LD_LIBRARY_PATH was not set. However, so far Debian (and the rest of Linux, I assume) continues to stick to the POSIX behaviour which is why you need to set -DUSE_RPATH=OFF for the PLplot case if you want to use LD_LIBRARY_PATH. 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); the Time Ephemerides project (timeephem.sf.net); PLplot scientific plotting software package (plplot.sf.net); 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 __________________________ ------------------------------------------------------------------------------ Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=190641631&iu=/4140/ostg.clktrk _______________________________________________ Plplot-devel mailing list Plplot-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/plplot-devel
