Thu, 11 May 2023

crc32c 0.0.2 on CRAN: Build Fixes

A first follow-up to the initial announcement just days ago of the new crc32c package. The package offers cyclical checksum with parity in hardware-accelerated form on (recent enough) intel cpus as well as on arm64.

This follow-up was needed because I missed, when switching to a default static library build, that newest compilers would complain if -fPIC was not set. gcc-12 on my box was happy, gcc-13 on recent Fedora as used at CRAN was not. A second error was assuming that saying SystemRequirements: cmake would suffice. But hold on whippersnapper: macOS always has a surprise for you! As described at the end of the appropriate section in Writing R Extensions, on that OS you have to go the basement, open four cupboards, rearrange three shelves and then you get to use it. And then in doing so (from an added configure script) I failed to realize Windows needed a fallback. Gee.

The NEWS entry for this (as well the initial release) follows.

Changes in version 0.0.2 (2023-05-11)

  • Explicitly set cmake property for position-independent code

  • Help macOS find its cmake binary as detailed also in WRE

  • Help Windows with a non-conditional pointing at cmake

  • Add more badges to

Changes in version 0.0.1 (2023-05-07)

  • Initial release version and CRAN upload

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This post by Dirk Eddelbuettel originated on his Thinking inside the box blog. Please report excessive re-aggregation in third-party for-profit settings.

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