Created attachment 1860999 [details] reproducer Description of problem: Because gcc coroutines don't support ASAN, we compile with clang. With libstdc++-11.2.1-9.fc34.x86_64, our program no longer compiles with clang. This is due to a clang bug [1], but it was exposed by the libstdc++ update. [1] https://github.com/llvm/llvm-project/issues/53049 Version-Release number of selected component (if applicable): libstdc++-11.2.1-9.fc34.x86_64 How reproducible: Always Steps to Reproduce: 1. gcc -o repro.o -c -std=li 2. clang++ -c -o repro.o -std=gnu++20 repro.cc 3. cry at errors Actual results: Compilation errors. Expected results: Good .o Additional info: I'll understand a WONFIX here, though it will leave me in a bind. It's totally a clang bug. I'd move to gcc if I could.
Turns out it was simple for us to work around, so urgency is nil for us. It might still impact others.
OK, thanks. I'll report it upstream and deal with it when I can.
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Still an issue with F35 (and newer)
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Still an issue in rawhide (although it's really a clang bug not a gcc one - the libstdc++ headers are correct).
This bug appears to have been reported against 'rawhide' during the Fedora Linux 39 development cycle. Changing version to 39.