CC="clang -mmacos-version-min=26"
OBJC=$CC
FC="/opt/R/flang-23/bin/flang-23 -mmacosx-version-min=26"
CXX="clang++ -mmacos-version-min=26"
CFLAGS="-falign-functions=8 -g -O2 -Wall -pedantic -Wconversion -Wno-sign-conversion -Wstrict-prototypes"
C17FLAGS="-falign-functions=8 -g -O2 -Wall -pedantic -Wconversion -Wno-sign-conversion -Wno-strict-prototypes"
C90FLAGS=$C17FLAGS
C99FLAGS=$C17FLAGS
CXXFLAGS="-g -O2 -Wall -pedantic -Wconversion -Wno-sign-conversion"
CPPFLAGS='-isystem /opt/R/arm64/include'
FFLAGS="-g -O2 -pedantic"
FCFLAGS="-g -O2 -pedantic -fintrinsic-modules-path /opt/R/flang-23/lib/clang/23/finclude/flang/arm64-apple-darwin22.6.0"
LDFLAGS=-L/opt/R/arm64/lib
R_LD_LIBRARY_PATH=/opt/R/arm64/lib

SHLIB_FCLDFLAGS="-Wl,-dylib -Wl,-headerpad_max_install_names -Wl,-undefined -Wl,dynamic_lookup"