Dockerfile for compiling with GBDK 2020 in 2026

Dockerfile

FROM ubuntu:26.04
SHELL ["/bin/bash", "-c"]

RUN apt update && apt install -y git build-essential curl

# SDCC with patches
WORKDIR /sdcc/
RUN curl -LO https://github.com/gbdk-2020/gbdk-2020-sdcc/releases/download/sdcc-patched-gbdk-4.5.0/sdcc-15267-Linux-x64.tar.gz
RUN tar xvf sdcc-15267-Linux-x64.tar.gz
ENV SDCCDIR=/sdcc/sdcc

# GBDK
RUN git clone https://github.com/gbdk-2020/gbdk-2020 /gbdk
WORKDIR /gbdk
ENV GBDKDIR=/gbdk/
RUN make
RUN make install
ENV GBDKDIR=/opt/gbdk/
ENV PATH=/opt/gbdk/bin:$PATH

# Build your project
WORKDIR /project
# Defaults to building with 'make'. Change to 'bash' for interactive session
ENTRYPOINT make
# Build: sudo docker build -t gbdk .
# Run: sudo docker run -it -v ${PWD}/:/project gbdk