Tested two core patches against Pressflow 6.23

[darkbrewery]

drupal core issue: http://drupal.org/node/883038
patch: http://drupal.org/node/883038#comment-4554420

here's the commit: http://drupalcode.org/project/drupal.git/commit/ae71f5d
actual patch to core: http://drupalcode.org/project/drupal.git/patch/ae71f5d

only tested with drush make like this:

projects[pressflow][type] = "core"
projects[pressflow][download][type] = "get"
projects[pressflow][download][url] = "https://github.com/pressflow/6/tarball/master"
projects[pressflow][patch][] = "http://drupal.org/files/issues/ereg-suppress_warnings-883038-drushmake-clean-D6.patch"

home this is remotely helpfull

[darkbrewery]

Just tested and can confirm that another patch for update.fetch.inc also applies cleanly:

http://drupal.org/node/1006938#comment-4661790
http://drupal.org/files/issues/555362-1.update_parse_files.D6_0.patch