Trying to run an executable linking to a dynamic library, I get the following error:
Library not loaded:
[...]
Reason: tried:
<lib> not valid for use in process: mapped file has no
cdhash, completely unsigned? Code has to be at least ad-hoc signed.
How can I ad-hoc sign my lib?
First, you can confirm that your library is not signed with:
% codesign -d -v <lib>
Which should say:
<lib>: code object is not signed at all
Ad-hoc sign it with:
% codesign -s - <lib>