I’ve been continuing my Boost.Build adventures leading to preparation for review of the new Boost.GIL I/O framework. Here is a short patch with update I had to applie to Boost.Build extensions scripts for the libraries: jpeg-8a, libtiff 3.9.4 and zlib 1.2.4. It is boost-build_extensions-r66346-update.patch

This patch allowed me to successfully compile Boost.GIL tests. It’s been posted to the Boost mailing list, so perhaps it will be integrated with boost_extensions in the Boost Sandbox repository.