2de2ea2ff63b97eacb23234932c6e1f1f65e4494 build, depends: Fix `libmultiprocess` cross-compilation (Hennadii Stepanov)
Pull request description:
On the master branch @ 3b12fc7bcd94cf214984911f68612feb468d5404, the following command fails:
```
$ make -C depends libmultiprocess HOST=arm64-apple-darwin MULTIPROCESS=1
...
[100%] Linking CXX executable mpgen
...
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
...
```
This PR prevents building all default targets that include `mpgen`, which expectedly fails to link when cross-compiling.
ACKs for top commit:
ryanofsky:
Code review ACK 2de2ea2ff63b97eacb23234932c6e1f1f65e4494
fanquake:
ACK 2de2ea2ff63b97eacb23234932c6e1f1f65e4494 - I checked that this fixes the macOS cross-compilation issue. I'm assuming these packages are also likely to change further in the (near) future, given the changes going in upstream: https://github.com/chaincodelabs/libmultiprocess/pulls?q=is%3Apr+is%3Aclosed.
Tree-SHA512: 563551afbe483c923b52c6171f9d73bcc30bc4febd821b5abfe8aadb2ac601b94c2d10a73746ace3710d9f0afa4798eb090e77ccb1ae66a819495912802d91c9
fbc0bce2e6