flexiblas (BLAS and LAPACK wrapper library) FlexiBLAS is a wrapper library that enables the exchange of the BLAS (Basic Linear Algebra System) and LAPACK (Linear Algebra PACKage) implementation used in an executable without recompiling or re-linking it. The FlexiBLAS library provides a GNU Fortran compatible interface to all functions and subroutines provided by the Netlib reference implementations. As backends FlexiBLAS can employ all BLAS and LAPACK implementations which consist of a single shared library directly. Other variants like the Intel MKL or ATLAS that use multiple files are integrated by FlexiBLAS by wrapping all files into a single surrogate library.