Please compile the numfla_f.f/biuni_f.f file by a command like
gfortran -c numfla_f.f
Please compile the htoaa_f.F/htogg_f.F file by a command like
gfortran -c -I/your-looptools-dir/x86_64-Linux/include htoaa_f.F -L/your-looptools-dir/x86_64-Linux/lib64 -looptools
