Erlexec > 2.0.2 does not play well with nerves systems

[SteffenDE]

Hey there,

I sadly don't have the time to debug this at the moment, I just wanted to report this in case anyone knows an easy fix:

With erlexec 2.0.2 it was very easy to use inside of a nerves system. When building MIX_TARGET=qemu_aarch64 mix firmware one could see

===> Compiling c_src/ei++.cpp
===> Compiling c_src/exec.cpp
===> Compiling c_src/exec_impl.cpp
===> Linking /Users/steffen/oss/nerves_containers/docker_example/_build/qemu_aarch64_dev/lib/erlexec/priv/aarch64-nerves-linux-gnu/exec-port

(it used the correct aarch64-nerves-linux-gnu target).

When using 2.0.3 or later, it crashes with

mkdir -p "/Users/steffen/oss/nerves_containers/docker_example/deps/erlexec/priv/aarch64-apple-darwin24.4.0/"
/Users/steffen/.nerves/artifacts/nerves_toolchain_aarch64_nerves_linux_gnu-darwin_arm-13.2.0/bin/aarch64-nerves-linux-gnu-g++ ei++.o exec_impl.o exec.o --sysroot=/Users/steffen/.nerves/artifacts/nerves_containers_qemu_aarch64-portable-0.1.1/staging -flat_namespace -undefined suppress  -L/Users/steffen/.nerves/artifacts/nerves_containers_qemu_aarch64-portable-0.1.1/staging/usr/lib/erlang/lib/erl_interface-5.5.2/lib -lei -lei -o /Users/steffen/oss/nerves_containers/docker_example/deps/erlexec/priv/aarch64-apple-darwin24.4.0/exec-port
aarch64-nerves-linux-gnu-g++: error: unrecognized command-line option '-flat_namespace'
make: *** [/Users/steffen/oss/nerves_containers/docker_example/deps/erlexec/priv/aarch64-apple-darwin24.4.0/exec-port] Error 1
===> Hook for compile failed!

(it also includes aarch64-apple-darwin24.4.0 which may indicate that it tries to use the wrong target?).