When I try to use from the libc6-compat I'm having this problem:

Error relocating my_app: __register_atfork: symbol not found
Error relocating my_app: __res_init: symbol not found

Is this a bug or this symbols are not at all supported by the compatibility layer?

When I try to target musl, I have a different problem. I cannot compile my application directly on musl, because some features from the rust compiler are not supported. What I did was compiling on a debian image targeting musl and moving my binary to my alpine image. It looks like even targeting musl, the linker still uses some glibc variants at build time, which my little experience with C doesn't help me being sure if this would be a problem or not.

My application depends on glib2 which I installed through apk and when it starts it fails with the following:

**
GLib-GObject:ERROR:../gobject/gtype.c:2743:g_type_register_static: assertion failed: (static_quark_type_flags)
Aborted

I've trying to compile a C example directly in my alpine container and it works in there, so that made me believe I'm having some problems with the cross compilation/linking in my glibc container. 

Any ideas on how can I solve this? 

Best regards,

Augusto César Dias