[R-SIG-Mac] Unable to library package "affy"

[Bowen Lai]

R version: 4.2.2
Arm64 with M1 SoC


my problem is totally same as this guy https://support.bioconductor.org/p/9148182/
so i search in Google and downlaod gfortan is neccessary.
Therefore, I have download ARM64 Macs: gfortran-12.0.1-20220312-is-darwin20-arm64.tar.xz from https://github.com/R-macos/gcc-darwin-arm64/releases/tag/R-4.2.0-release , but i can't understand how to use gfortran in R to library package so the problem is still unsolved.




In detail, i can't understand the following steps because i am a medical student and know a little about professional CS.




"This binary installs into /opt/R/arm64/gfortran with an additional symlink in /opt/R/arm64/bin/gfortran. To unpack use

tar fxz gfortran-12.0.1-20220312-is-darwin20-arm64.tar.xz -C /


(prefix with sudo if you need admin permissions to write to /opt/R/arm64). To use set

export PATH=$PATH:/opt/R/arm64/gfortran/bin


In addition, /opt/R/arm64/gfortran/SDK has to point to your macOS SDK. The binary above points to MacOSX11.sdk of Xcode Command Line Tools, but you may need to change it to match your installation. We include a script gfortran-update-sdk in the above tar ball that you can simply run (prefix with sudo if you require admin permissions).

This build has been configured with:

../gcc-darwin-arm64/configure --prefix=/opt/R/arm64/gfortran --enable-languages=c,fortran \
   --with-gmp=/opt/R/arm64 --with-mpc=/opt/R/arm64 --with-mpfr=/opt/R/arm64 \
   --with-sysroot=/opt/R/arm64/gfortran/SDK"
Sincerely Yours
Bowen Lai


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