Summary

The purpose of this repository is to publish nuget packages containing compiled forms of GLPK. This repository should not be used for editing or enhancing GLPK in any way.

This repository contains the unaltered source for GLPK 5.0 in the glpk directory. This directory was populated by executing the get-glpk.cmd command. GLPK is licensed under GPL 3.0, as shown in the LICENSE.txt file, which is an unaltered copy of the glpk/glpk-5.0/COPYING file.

See GLPK pdf for documentation of the public API of GLPK.

In addition to the source for GLPK, this repository contains:

• Scripts to build GLPK for various platforms (in the build directory).
• A C# file, content/GlpkNative.cs, containing C# declarations for some of the public API of GLPK, using PInvoke technology to wrap the native entry points. This is for convenience and its use is optional for clients of the nuget package.
• The project test/GlpkTest.csproj that contains basic tests of the GLPK builds.
• The project package/Glpk.Native.csproj that is used solely to define and create a nuget package.
• The pipelines directory that contains Azure DevOps pipeline definition files for building, testing and packaging.

Building

The build directory contains scripts for building GLPK.

To build for Windows (64 bit or 32 bit), on a Windows machine:

• Ensure that Micrsoft Visual Studio is properly installed and includes the native tools.
• If the path for HOME_VCVARS in Build_Win.cmd is not correct, edit that file to fix the path.
• cd to the build directory.
• Run Build_Win.cmd x64 to compile for 64 bit Windows. The results are in the generated xout_x64 directory.
• Run Build_Win.cmd x86 to compile for 32 bit Windows. The results are in the generated xout_x86 directory.

To build for Linux (or WSL), on a Linux machine:

• cd to the build directory.
• If needed run chmod +x bld.sh.
• Run ./bld.sh. The results are in the generated xout_linux directory. Note that this uses the standard build process as specified by the GLPK documentation, so may be customized accordingly.

Testing

To test the builds on either Windows or Linux:

• First build GLPK as described above.
• cd to the test directory.
• Run dotnet test GlpkTest.csproj.

Packaging

To create the nuget package:

• Ensure that all builds have been performed in the same directory structure.
• cd to the package directory.
• Run dotnet pack Glpk.Native.csproj.
• The package will be in package/bin/Release/Glpk.Native.<ver>.nupkg, where <ver> is the current version.

Trademarks

This project may contain trademarks or logos for projects, products, or services. Authorized use of Microsoft trademarks or logos is subject to and must follow Microsoft's Trademark & Brand Guidelines. Use of Microsoft trademarks or logos in modified versions of this project must not cause confusion or imply Microsoft sponsorship. Any use of third-party trademarks or logos are subject to those third-party's policies.