# OpenBLAS

The OpenBLAS library (`libopenblas.dll`) provided for Media Server on the 64-bit Windows platform was compiled using MinGW-w64 and statically linked to MinGW-w64 runtime libraries.

NOTE: `mediaserver.exe` is not linked to the MinGW-w64 library. MinGW-w64 is used only to compile OpenBLAS on the 64-bit Windows platform.

Parts of MinGW-w64 are licensed under the LGPL license. In order to comply with this license, Micro Focus provide the following so that you can recompile and relink OpenBLAS using your own version of MinGW-w64:

- ZIP archives containing full source code for OpenBLAS and MinGW-w64 are provided in the Media Server installation. Instructions for building OpenBLAS using MinGW-w64 are provided in the OpenBLAS distribution.

- The OpenBLAS library was built with the following variables (either set as environment variables or passed to `make` on the command line):

  - `ONLY_CBLAS=1`
  - `NO_STATIC=1`
  - `USE_THREAD=0`
  - `DYNAMIC_ARCH=1`
  - `CC=x86_64-w64-mingw32-gcc`

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