pciutils: use standardized equivalent for canonicalize_file_name

Fixes w/musl.

pkgs/tools/system/pciutils/default.nix

@@ -22,6 +22,16 @@ stdenv.mkDerivation rec {
 
   installTargets = "install install-lib";
 
+  # Use standardized and equivalent realpath(path, NULL) instead of canonicalize_file_name(path).
+  # This is documented to be equivalent, see `man 3 canonicalize_file_name`.
+  # Fixes w/musl.
+  # Upstream PR: https://github.com/pciutils/pciutils/pull/6
+  postPatch = ''
+    substituteInPlace lib/sysfs.c \
+      --replace "canonicalize_file_name(path)" \
+                "realpath(path, NULL)"
+  '';
+
   # Get rid of update-pciids as it won't work.
   postInstall = "rm $out/sbin/update-pciids $out/man/man8/update-pciids.8";