UDF not working on macOS ARM64 installer (Firebird 5.0)

[sund1]

In the macOS ARM64 installer (https://www.firebirdsql.org/en/firebird-5-0#macos-arm64), UDFs (.dylib) do not work.
In Firebird 3 installer (which was compiled from sources), UDFs (.dylib) worked fine
When running Firebird 5 in Docker (image: firebirdsql/firebird), UDFs (.so) work as expected.
Configuration was the same in both cases: UdfAccess = Restrict UDF
What could be the problem with UDFs in the macOS ARM64 installer?

Mac M1, macOS 15.6

[sund1]

This UDF works in FB 3.0.10 (local) and FB 5 (Docker).

But on FB 5 (local, compiled in GitHub Actions and installed from the official installer) I get the following error:

Error: *** IBPP::SQLException ***
Context: Statement::Prepare( select first 1 test_one(), rdb$get_context('SYSTEM', 'ENGINE_VERSION') from MON$ATTACHMENTS )
Message: isc_dsql_prepare failed

SQL Message : -104
Invalid token

Engine Code    : 335544343
Engine Message :
invalid request BLR at offset 108
function TEST_ONE is not defined
module name or entrypoint could not be found

udf_bill.cpp

extern "C" int test_one()
{
    return 1;
}

DECLARE EXTERNAL FUNCTION test_one
RETURNS INTEGER BY VALUE
ENTRY_POINT 'test_one'
MODULE_NAME 'udf_bill';

in the archive are the UDFs that I compiled and used for testing (.so, .dylib)
archive.zip

local fb 3 and docker fb 5

[sund1]

I found the reason why UDFs were not working in Firebird 5 on macOS.

After Firebird 3, the defined DARWIN check was removed, and additionally a commented-out block was introduced:

file: firebird/src/jrd/flu.cpp

Because of this, .dylib extensions were no longer recognized.
After restoring defined DARWIN or simply uncommenting the #ifdef DARWIN block in Firebird 5, UDFs on macOS start working again.

[asfernandes]

Thanks. Please test artifacts generated in https://github.com/FirebirdSQL/firebird/actions/runs/17096250034

As a workaround, looks like you can use it without the extension (.dylib).

[sund1]

I checked firebird-macos-arm64. UDF works.

As a workaround, looks like you can use it without the extension (.dylib).

It didn’t work for me on the previous version.