Build for aarch64

[georglauterbach]

Would it be possible to cross-compile to x86_64 and aarch64?

This is what I have so far:

VERSION 0.6

FROM docker.io/alpine:3.23

RUN apk add --no-cache \
    curl autoconf gcc flex bison make bash cmake libtool musl-dev g++ \
    zlib-dev zlib-static \
    tcl tk \
    tcl-dev gettext

ARG GIT_VERSION=2.52.0

build-all-platforms:
    BUILD --platform=linux/amd64 +build # --platform=linux/arm64

build:
    ARG TARGETARCH

    RUN curl -ssfL -o "git_v${GIT_VERSION}.tar.gz" \
        "https://github.com/git/git/archive/v${GIT_VERSION}.tar.gz"
    RUN tar xf "git_v${GIT_VERSION}.tar.gz"
    WORKDIR "/git-${GIT_VERSION}"

    RUN make configure && sed -i 's/qversion/-version/g' configure
    RUN ./configure prefix=/dist/git-${GIT_VERSION} LDFLAGS="--static" CFLAGS="${CFLAGS} -O3 -static"
    RUN make -j"$(nproc)" && make install

    SAVE ARTIFACT /dist/git-${GIT_VERSION}/bin/git AS LOCAL ./out/${TARGETARCH}/

I did not get --platform=linux/arm64 to work, though, supposedly because of a bug in gcc.