R: patchelf libraries missing libR.so (NixOS#354819)

Author: 7c6f434c

pkgs/applications/science/math/R/default.nix

@@ -101,7 +101,10 @@ stdenv.mkDerivation (finalAttrs: {
   # The store path to "which" is baked into src/library/base/R/unix/system.unix.R,
   # but Nix cannot detect it as a run-time dependency because the installed file
   # is compiled and compressed, which hides the store path.
-  postFixup = "echo ${which} > $out/nix-support/undetected-runtime-dependencies";
+  postFixup = ''
+    echo ${which} > $out/nix-support/undetected-runtime-dependencies
+    ${lib.optionalString stdenv.hostPlatform.isLinux ''find $out -name "*.so" -exec patchelf {} --add-rpath $out/lib/R/lib \;''}
+  '';
 
   doCheck = true;
   preCheck = "export HOME=$TMPDIR; export TZ=CET; bin/Rscript -e 'sessionInfo()'";