CC="clang -arch x86_64"
OBJC=$CC
CXX="clang++ -arch x86_64"
FC=/usr/local/gfortran/bin/gfortran
FFLAGS="-g -O2 -Wall -pedantic -mtune=native -mmacosx-version-min=10.13"
CFLAGS="-g -O2 -Wall -pedantic -Wconversion -Wno-sign-conversion -mmacosx-version-min=10.13"
CXXFLAGS="-g -O2 -Wall -pedantic -mmacosx-version-min=10.13"
R_LD_LIBRARY_PATH=/usr/local/lib