R @4.1.1 'recommended' set of packages does not build on MacOS 12.0.1 Monterey

[AP1010]

I am unable to build R on Monterey unless I specify -recommended. With +recommended (the default), the build fails with:

/opt/local/bin/clang-mp-13 -I"/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_math_R/R/work/R-4.1.1/include" -DNDEBUG   -I/opt/local/include -isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk  -fopenmp -fPIC  -pipe -Os -isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX12.sdk -arch x86_64  -c mat.c -o mat.o
In file included from magic.c:26:
/opt/local/include/libomp/omp.h:483:39: error: expected 'match' clause on 'omp declare variant' directive
    #pragma omp begin declare variant match(device={kind(host)})

[AP1010]

main.log

[kjellpk (Kjell Konis)]

Sadly, I am hardware-limited to High Sierra. From a quick look at the log, it looks like the 'survival' package (one of R's Recommended packages) is not playing nice with openmp.

[AP1010]

Disabling openmp helps. Variant:

 +builtin_lapack +cairo +gccdevel +recommended -openmp

builds successfully.

[i0ntempest]

Replying to kjellpk:

Sadly, I am hardware-limited to High Sierra. From a quick look at the log, it looks like the 'survival' package (one of R's Recommended packages) is not playing nice with openmp.

Pretty sure you meant mgcv which is the one that fails to build. Looks like the recent libomp update is incompatible with this. The newest mgcv does build with the newest libomp, so let's wait for an upstream update.

[i0ntempest]

In 0991dba92e0f9905dd33d4314e470416ea5fecb5/macports-ports (master):

R: update to 4.1.2

Closes: #63674