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# For a 64bit + 32bit system the LD_LIBRARY_PATH must contain both the 32bit and 64bit primus
# libraries. Providing a different primusrun for each architecture will not work as expected. EG:
# Using steam under wine can involve both 32bit and 64bit process. All of which inherit the
# same LD_LIBRARY_PATH.
# Other distributions do the same.
{ stdenv
, stdenv_i686
, primusLib
, writeScriptBin
, primusLib_i686 ? null
, useNvidia ? true
}:
let
# We override stdenv in case we need different ABI for libGL
primusLib_ = primusLib.override { inherit stdenv; };
primusLib_i686_ = primusLib_i686.override { stdenv = stdenv_i686; };
primus = if useNvidia then primusLib_ else primusLib_.override { nvidia_x11 = null; };
primus_i686 = if useNvidia then primusLib_i686_ else primusLib_i686_.override { nvidia_x11 = null; };
ldPath = stdenv.lib.makeLibraryPath ([primus] ++ stdenv.lib.optional (primusLib_i686 != null) primus_i686);
in writeScriptBin "primusrun" ''
#!${stdenv.shell}
export LD_LIBRARY_PATH=${ldPath}:$LD_LIBRARY_PATH
exec "$@"
''
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