win-cross-compile.md

Windows Cross Compile

Build Bitcoin Core binaries for Windows on macOS.

Setup

Need the mingw-w64 toolchain and NSIS (for building the installer).

brew install mingw-w64 makensis

Build

pushd bitcoin
# skip Qt for now. zlib build failing
make -C depends/ HOST=x86_64-w64-mingw32 -j8 NO_QT=1
./autogen.sh

./configure --prefix=/Users/michael/github/bitcoin/depends/x86_64-w64-mingw32

make -j8

file src/bitcoind.exe
src/bitcoind.exe: PE32+ executable (console) x86-64, for MS Windows

Take src/bitcoind.exe into a Windows VM and run.

Mouting src/ as a Shared Folder is an easy way to do this.