What happend?

I was running into some issues when compiling my ProxySwitcher project. I will provide a Dockerfile and the basic code-usage for this library, but I was basically just unable to compile (mostly when cross-compiling from linux to windows). Now, I wanted to document what my mistake was and what could be done to avoid this in the future:

Basically, what I think the project is lacking is some more/updated documentation. I was always struggling with the two different sets of installation/deployment steps in the README and the Wiki. Now I notice that it is rough to figure out what dependencies and which versions of those are needed as well.

In my example, using giu@v0.13.0, in order to cross-compile from linux to windows, I was running a ubuntu:noble docker container that shipped with both gcc-mingw-w64 and g++-mingw-w64 at around version 13. What I then figured out was that it seems to work perfectly fine on arch-linux, which can easily install the updated v14 via pacman. Additionally, reverting back to giu@v0.12.0 compiles just fine with these tools on ubuntu:noble.

So now I am trying to see if I should manually install a different version of mingw-w64's tools, revert back to the older version for now, or stay on arch-linux. I hope this helps someone and I am grateful for the existence of this project. Happy coding!

Code example

//go:build cgo

package gui

import (
	g "github.com/AllenDang/giu"
)

func Config() {
	title := "TODO"
	wnd := g.NewMasterWindow(title, 400, 200, g.MasterWindowFlagsNotResizable)
	wnd.Run(func() {
		g.SingleWindow().Layout(
			g.Label("TODO"),
		)
	})
}

FROM ubuntu:noble AS linux

WORKDIR /app
COPY . .

RUN apt-get update && apt-get install -y \
    libgl1-mesa-dev libxxf86vm-dev \
    libxrandr-dev libxinerama-dev \
    libx11-dev libxcursor-dev \
    libxi-dev libglx-dev \
    golang gcc

ENV GOBIN $GOROOT/bin
ENV GO_VERSION 1.24.2
ENV GO $GOBIN/go$GO_VERSION

RUN go install golang.org/dl/go$GO_VERSION@latest

RUN $GO download
RUN $GO mod download -x

ENV CGO_ENABLED 1
CMD $GO build -v -o build/


FROM linux AS windows

RUN apt-get update && apt-get install -y \
    gcc-mingw-w64 g++-mingw-w64

ENV GOOS windows
ENV GOARCH amd64
ENV CC "x86_64-w64-mingw32-gcc"
ENV CXX "x86_64-w64-mingw32-g++"

CMD $GO build -v -o build/

To Reproduce

0. Use giu@v0.13.0
1. Compile the example for linux as follows:
   • docker build --target linux -t my_image-linux:latest .
   • docker run --rm -it -v ./build:/app/build my_image-linux:latest
   • Works fine and as expected
2. Compile the example for windows as follows:
   • docker build --target windows -t my_image-windows:latest
   • docker run --rm -it -v ./build:/app/build my_image-windows:latest
   • Fails with some missing references for the linker
3. Try using giu@v0.12.0 and it should work just fine.

Version

(latest, which?)

OS

Any