meson/docs/markdown/snippets/wrap_patch.md

Local wrap source and patch files

It is now possible to use the patch_filename and source_filename value in a .wrap file without *_url to specify a local source / patch file. All local files must be located in the subprojects/packagefiles directory. The *_hash entries are optional with this setup.

Local wrap patch directory

Wrap files can now specify patch_directory instead of patch_filename in the case overlay files are local. Every files in that directory, and subdirectories, will be copied to the subproject directory. This can be used for example to add meson.build files to a project not using Meson build system upstream. The patch directory must be placed in subprojects/packagefiles directory.

Patch on all wrap types

patch_* keys are not limited to wrap-file any more, they can be specified for all wrap types.