The checked out libodb/odb/version-build2.hxx,
libodb-mysql/odb/mysql/version-build2.hxx,
libodb-sqlite/odb/sqlite/version-build2.hxx, and
libodb-pgsql/odb/pgsql/version-build2.hxx will be overwritten during the build
process but these changes should be ignored. To do this automatically, run:

git update-index --assume-unchanged libodb/odb/version-build2.hxx
git update-index --assume-unchanged libodb-mysql/odb/mysql/version-build2.hxx
git update-index --assume-unchanged libodb-sqlite/odb/sqlite/version-build2.hxx
git update-index --assume-unchanged libodb-pgsql/odb/pgsql/version-build2.hxx