Windows target

[ofek]

How do you build this for (or on) Windows?

[chfast]

I'm using CMake to build it. E.g. https://github.com/ethereum/cpp-ethereum/blob/develop/cmake/secp256k1/CMakeLists.txt or #315.

[ofek]

I've figured it out https://github.com/ofek/coincurve/blob/master/.travis/prepare_windows_build.sh / https://github.com/ofek/coincurve/blob/master/.travis/build_windows_wheels.sh

Though, I don't know how to build libgmp for Windows for use with libsecp256k1.

[chfast]

You can configure libsecp256k1 not to use GMP at all. Option is --with-bignum=none.

[ofek]

Oh yes but I'd like to use it. Have you tried building for Windows with gmp?

[chfast]

I don't think you can build GMP with Visual Studio. I suggest using MPIR instead. It is compatible with GMP.

[ofek]

Looks interesting, thanks!

[chfast]

I'm also trying to provide CMake support for it. wbhart/mpir#215.

[laanwj]

Including secp256k1 in any project is easy as it's a single-file library. Though if you use another build system make sure that the correct defines for your platform are set, either in libsecp256k1-config.h (and HAVE_CONFIG_H set) or otherwise.

[ghost]

@laanwj that file doesnt exist. im trying to cross compile from WSL, so far im trying --build=x86_64-w64-mingw32 without luck

[kroggen]

Just sharing another method using GitHub Actions and Visual C