CC=clang OBJC=$CC FC="/usr/local/gfortran10/bin/gfortran -mtune=native" FFLAGS="-g -O2 -Wall -pedantic" CXX=clang++ CFLAGS="-g -O2 -Wall -pedantic -Wconversion -Wno-sign-conversion" CXXFLAGS="-g -O2 -Wall -pedantic" LTO=-flto=thin LTO_FC= LTO_LD=-Wl,-mllvm,-threads=8