Linker Error: framework not found MPLibrary

Targets macOS
1

After considerable effort I finally stamped out all incompatibilities from my previous RS project and tried to run under XOJO only to get this error:

Linking Executable
ld: framework not found MPLibrary

Googling reveals precious little, certainly nothing connected with XOJO or macOS. I don’t even know what this lib is (is it multiprocessor or multiple precision?).

I have MBS plugins, and my own plugin written in C/C++/Xcode that works fine in my RS project (as 32 bit; I recompiled as 64 bit for the XOJO port).

I don’t even know where to start looking. Is this my fault or something deep inside XOJO (the error log includes a msg telling me to copy the error and submit a bug report; once I get a sense that this is not my doing I will submit a bug report).

Any insights greatly appreciated.
Peter.

2

If it’s on macOS that might be something to do with multiprocessing < https://developer.apple.com/documentation/coreservices/carbon_core/multiprocessing_services?language=objc >

Any declares in your code?
What plugins are you calling?

3

MPLibrary is from Mac OS Classic, > 10 years ago.

Check declares.

4

Thx folks, quite right, I had an obscure Declare that caused the error.
Cheers,
Peter.