nixpkgs/pkgs/build-support/add-opengl-runpath/setup-hook.sh

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# Set RUNPATH so that driver libraries in /run/opengl-driver(-32)/lib can be found.
# This is needed to not rely on LD_LIBRARY_PATH which does not work with setuid
# executables. Fixes https://github.com/NixOS/nixpkgs/issues/22760. It must be run
# in postFixup because RUNPATH stripping in fixup would undo it. Note that patchelf
# actually sets RUNPATH not RPATH, which applies only to dependencies of the binary
# it set on (including for dlopen), so the RUNPATH must indeed be set on these
# libraries and would not work if set only on executables.
addOpenGLRunpath() {
local forceRpath=
while [ $# -gt 0 ]; do
case "$1" in
--) shift; break;;
--force-rpath) shift; forceRpath=1;;
--*)
echo "addOpenGLRunpath: ERROR: Invalid command line" \
"argument: $1" >&2
return 1;;
*) break;;
esac
done
for file in "$@"; do
if ! isELF "$file"; then continue; fi
local origRpath="$(patchelf --print-rpath "$file")"
patchelf --set-rpath "@driverLink@/lib:$origRpath" ${forceRpath:+--force-rpath} "$file"
done
}