Prevent bundle absolute LC_ID_DYLIB

[L1ghtmann]

What does this implement/fix? Explain your changes.

Specifies runtime location as install_name for bundles when linking to avoid using an absolute path

Does this close any currently open issues?

Appears to resolve #720

Any relevant logs, error output, etc?

Any other comments?

Before:

          cmd LC_ID_DYLIB
      cmdsize 96
         name /home/lightmann/vinyl/.theos/obj/arm64/VinylPrefs.bundle/VinylPrefs (offset 24)

After:

          cmd LC_ID_DYLIB
      cmdsize 88
         name /var/jb/Library/PreferenceBundles/VinylPrefs.bundle/VinylPrefs (offset 24)

Where has this been tested?

Operating System: …

Linux (WSL) + iP7 iOS 15.4.1 palera1n

Platform: …

Target Platform: …

Toolchain Version: …

SDK Version: …

[leptos-null]

Looks good to me.
Is there a reason we would like to expose $(THEOS_CURRENT_INSTANCE)_DYNAMIC_LIBRARY? I don't see this variable anywhere else.

[L1ghtmann]

Interesting. Seems its purpose is to allow non-dynamic bundles...234e1c4

[leptos-null]

My bad, this variable is unrelated to this PR 👍