[R-pkg-devel] Please install cmake on macOS builders

[Dirk Eddelbuettel]

Simon,

Explicitly declaring

    SystemRequirements: cmake

appears to be insufficient to get a build on the (otherwise lovely to have)
'macOS builder', and leads to failure on (at least) 'r-oldrel-macos-x86_64'.

Would it be possible to actually have cmake installed?

These daus cmake is for better or worse becoming a standard, and I rely on it
for one (new) package to correctly configure a library. It would be nice to
be able to rely on it on macOS too.

Thanks,  Dirk

-- 
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