For APIs that use driver config files, the config files should point to libraries using absolute paths, so `RUNPATH` should be unnecessary. It is still needed for `libGLX` because that does not use config files but the dispatch library receives just a vendor name from the X server.
Even though FALLBACK_DATA_DIRS is set to include this, it only applies when XDG_DATA_DIRS is not defined, so the NixOS opengl.nix module still had to include these in the search path. Use a simple patch to force a default search path, consulted after all other search paths.
Note that FALLBACK_DATA_DIRS is no longer set, and the default (/usr/local/share:/usr/share) applies.
Previously we were relying on LD_LIBRARY_PATH to discover driver libraries (libGL, ligGLX, libEGL, OpenCL and Vulkan). This has the problem that setuid programs (in particular VirtualBox) ignore LD_LIBRARY_PATH. Fix it by setting RUNPATH in various dispatch libraries.
This is not needed for libvdpau because it is already configured to look for libraries in the driver paths.
Fixes https://github.com/NixOS/nixpkgs/issues/22760.
This makes the command ‘nix-env -qa -f. --arg config '{skipAliases =
true;}'’ work in Nixpkgs.
Misc...
- qtikz: use libsForQt5.callPackage
This ensures we get the right poppler.
- rewrites:
docbook5_xsl -> docbook_xsl_ns
docbook_xml_xslt -> docbook_xsl
diffpdf: fixup
* Implement libGL as a symlink package which uses libraries from libglvnd and
headers from Mesa (since ones from libglvnd are outdated).
* Use libGL_driver.driverLink treewide; add FHS paths where possible.