Description
Description
If I set .interoperabilityMode(.Cxx) on a testTarget then the build fails with something like
/Users/johnf/project/TestCpp2/.build/x86_64-unknown-linux-gnu/debug/TestCpp2PackageDiscoveredTests.derived/TestCpp2Tests.swift:2:18:
error: module 'TestCpp2Tests' was built with C++ interoperability enabled, but current compilation does
not enable C++ interoperability
@testable import TestCpp2Tests
^
It looks like the interoperabilityMode is not being propagated to the compilation of SPM's test-autodiscovery generated code: even though there is no C++ in here, the Swift 5.9 C++ interop flag is viral -- the only reason I have to set it for my testTarget is because of the thing I'm trying to test.
(workaround is swift test -Xswiftc -cxx-interoperability-mode=default)
Expected behavior
No response
Actual behavior
No response
Steps to reproduce
No response
Swift Package Manager version/commit hash
No response
Swift & OS version (output of swift --version ; uname -a)
swift-5.9-DEVELOPMENT-SNAPSHOT-2023-06-17-a
Swift version 5.9-dev (LLVM e2b11c251e5ef2b, Swift f4b2843236a710a)
Target: x86_64-unknown-linux-gnu
Linux 97536d5bd55a 5.15.49-linuxkit #1 SMP Tue Sep 13 07:51:46 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux