1Please use ./import_expat.sh to update. For example to import from a tar and rebuild: 2 3 (croot && cd external/expat && ./import_expat.sh ~/Downloads/expat-2.1.0.tar.gz && mm -j32 -B) 4 5When updating to new versions, please remove any unnecessary build 6files to make the diff of what we are using clearer. It is reasonable 7to keep new docs, examples, and tests for reference. 8