Check results using R-devel on an arm64 ('M1 Pro') Mac running macOS
15.0 'Sequoia' with Xcode/CLT 16 and the build of gfortran (a fork of
14.1) from https://github.com/R-macos/gcc-14-branch/releases/tag/14.1-darwin)

Timezone Europe/London
Locale en_GB.UTF-8, LC_COLLATE=C

Details as in the R-admin manual, with config.site containing

CC="clang -mmacos-version-min=15"
OBJC=$CC
FC="/opt/gfortran/bin/gfortran -mtune=native"
CXX="clang++ -mmacos-version-min=15"
CFLAGS="-falign-functions=8 -g -O2 -Wall -pedantic -Wconversion -Wno-sign-conversion -Wstrict-prototypes"
C17FLAGS="-falign-functions=8 -g -O2 -Wall -pedantic -Wconversion -Wno-sign-conversion -Wno-strict-prototypes"
C90FLAGS="-falign-functions=8 -g -O2 -Wall -pedantic -Wconversion -Wno-sign-conversion -Wno-strict-prototypes"
C99FLAGS="-falign-functions=8 -g -O2 -Wall -pedantic -Wconversion -Wno-sign-conversion -Wno-strict-prototypes"
CXXFLAGS="-g -O2 -Wall -pedantic -Wconversion -Wno-sign-conversion"
CPPFLAGS='-isystem /opt/R/arm64/include'
FFLAGS="-g -O2"
LDFLAGS=-L/opt/R/arm64/lib
R_LD_LIBRARY_PATH=/opt/R/arm64/lib

External libraries are where possible installed via minor
modifications to Simon Urbanek's 'recipes' at
https://github.com/R-macos/recipes .  The main exceptions are those
which need to use dynamic libraries (such as openmpi and libmariadb).

Currently this uses PROJ 9.5.0, GEOS 3.13.0, GDAL 3.9.2.  (GDAL needs
manual patching of gdal-config, so not installed via recioes.)

pandoc is their binary arm64 Mac build, currently 3.4 (and updated often).

Java is 21.0.4 from https://adoptium.net

JAGS is a binary install from 
https://sourceforge.net/projects/mcmc-jags/files/JAGS/4.x/Mac%20OS%20X/

ghoatscript is 10.03.0 from MacTeX 2024.

There is a testing service for the CRAN M1mac setup at
https://mac.r-project.org/macbuilder/submit.html .  Some ways in which
this may differ from the CRAN checks:

- Using R-devel not R 4.[34].x
- timezone is Europe/London not Pacific/Auckland
- OS and Command Line Tools are kept up-to-date (at present the CRAN
    check service is running macOS 11, and Xcode/CLT 14.0.3 with the
    macOS11 SDK.  But R was built with CLT 14.0.0).
- The TeX installation (MacTeX, currently 2024) is updated daily.
- Later C/C++ compilers, different flags.
  Apple clang 14.0.3 it seems was a major update from 14.0.0, with
    many aspects of LLVM clang 15/16 having been ported.
    Versions 15.0.0 seem a minor update from 14.0.3.
    Versions 16.0.0 ported some changes from LLVM clang 19.
- External software is (mainly) kept up-to-date -- see above.
    This includes using Java 21 and cmake, currently 3.30.3.
    OpenMPI is installed for Rmpi, bigGP and pbdMPI, currently 5.0.5.
- Package INLA is installed -- requires a binary install on Macs.

Packages with non-default installs:

sf: --configure-args='--with-data-copy --with-proj-data=/opt/R/arm64/share/proj'

Several BioC packages have needed patching, currently EBImage Rdisop mzR

Options used for 'R CMD check':

limit stacksize 20M
setenv _R_CHECK_FORCE_SUGGESTS_ FALSE
setenv LC_CTYPE en_GB.UTF-8
setenv RMPI_TYPE OPENMPI
setenv R_BROWSER false
setenv R_PDFVIEWER false
setenv _R_CHECK_INSTALL_DEPENDS_ true
#setenv _R_CHECK_SUGGESTS_ONLY_ true
setenv _R_CHECK_NO_RECOMMENDED_ true
setenv _R_CHECK_TIMINGS_ 10
setenv _R_CHECK_DEPRECATED_DEFUNCT_ true
setenv _R_CHECK_CODE_ASSIGN_TO_GLOBALENV_ true
setenv _R_CHECK_CODE_DATA_INTO_GLOBALENV_ true
setenv _R_CHECK_SCREEN_DEVICE_ warn
setenv _R_CHECK_S3_METHODS_NOT_REGISTERED_ true
setenv _R_CHECK_OVERWRITE_REGISTERED_S3_METHODS_ true
setenv _R_CHECK_NATIVE_ROUTINE_REGISTRATION_ true
setenv _R_CHECK_FF_CALLS_ registration
setenv _R_CHECK_PRAGMAS_ true
setenv _R_CHECK_COMPILATION_FLAGS_ true
setenv _R_CHECK_COMPILATION_FLAGS_KNOWN_ "-Wconversion -Wno-sign-conversion"
setenv _R_CHECK_THINGS_IN_TEMP_DIR_ true
setenv _R_CHECK_THINGS_IN_TEMP_DIR_EXCLUDE_ "^(ompi|dsymutil)"
setenv _R_CHECK_MATRIX_DATA_ TRUE
setenv _R_CHECK_ORPHANED_ true
setenv _R_CHECK_BROWSER_NONINTERACTIVE_ true
setenv _R_CHECK_MBCS_CONVERSION_FAILURE_ true

setenv _R_CHECK_RD_VALIDATE_RD2HTML_ true
setenv _R_CHECK_RD_MATH_RENDERING_ true
setenv _R_CHECK_VALIDATE_UTF8_ true
(needed for macOS 14.1 to avoid the check process segfaulting)
setenv _R_DEPRECATED_IS_R_ error

setenv R_DEFAULT_INTERNET_TIMEOUT 600
setenv NOAWT 1
setenv RGL_USE_NULL true
setenv WNHOME /usr/local/wordnet-3.1

setenv _R_CHECK_XREFS_USE_ALIASES_FROM_CRAN_ TRUE

setenv _R_CHECK_RD_VALIDATE_RD2HTML_ true
setenv _R_CHECK_RD_MATH_RENDERING_ true

and cosmetically

setenv _R_CHECK_VIGNETTES_SKIP_RUN_MAYBE_ true
setenv _R_CHECK_TESTS_NLINES_ 0
setenv _R_CHECK_VIGNETTES_NLINES_ 0

A parallel make is used and packages are checked in parallel --
installing or checking a single package may use up to 8 CPUs.