** Changed in: protobuf (Ubuntu)
Status: In Progress => Fix Committed
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https://bugs.launchpad.net/bugs/2122479
Title:
protobuf is FTBFS on questing-proposed for i386 and s390x
architectures
Status in protobuf package in Ubuntu:
Fix Committed
Bug description:
On i386 and s390x architectures, the compiler cannot optimize tail-
calls, but is forced by the MUSTTAIL directive.
> google/protobuf/generated_message_tctable_lite.cc:1666:46: error: cannot
tail-call: target is not able to optimize the call into a sibling call
1666 | PROTOBUF_MUSTTAIL return MpRepeatedString(PROTOBUF_TC_PARAM_PASS);
| ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
This results in a bug where compilation fail on such architectures.
This bug is already fixed upstream:
https://github.com/protocolbuffers/protobuf/issues/22367
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