feat: Optionally use sccache instead of ccache #8444
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feat: Optionally use sccache instead of ccache
sccache is a mostly drop-in replacement for
ccache. I have added an option to thestage1build that allows users to build Lean usingsccache. This is likely to be the first of several PRs over time that will make it possible to use every advantage ofsccache, which includes distributed builds, and builds that can easily plug into cloud infrastructure. This option is turned off by default, and must be manually enabled like so:I have no expectation that Lean will ever officially support
sccache. I am adding this option to explore the viability of using the next generation of build caching tools.