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633 B

Unity file block size is configurable

Traditionally the unity files that Meson autogenerates contain all source files that belong to a single target. This is the most efficient setting for full builds but makes incremental builds slow. This release adds a new option unity_size which specifies how many source files should be put in each unity file.

The default value for block size is 4. This means that if you have a target that has eight source files, Meson will generate two unity files each of which includes four source files. The old behaviour can be replicated by setting unity_size to a large value, such as 10000.