Just type make to compile the library. Notes OpenBLAS doesn't support g77. Please use gfortran or other Fortran compilers. e.g. make FC=gfortran. When building in an emulator (KVM,QEMU etc.) make sure that the combination of CPU features exposed to the virtual environment matches that of an existing CPU to allow detection of the cpu model to succeed. (With qemu, this can be done by passing -cpu ho