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Re: Recent libstdc++ regression on i686-linux: abi/cxx_runtime_only_linkage.cc
Joseph S. Myers wrote:
The test will always compile, but sometimes the result will have
references to the __sync_* functions in the output. Then, for certain
targets where these functions are defined in a library, the result will
link. (The only targets where these are defined in a library are targets
where we can assume link tests are OK.)
So a normal compile-or-link isn't what we want here; it's "link if you can
do link tests, but otherwise check the .s file" or "link for *-*-linux*
*-*-uclinux*, but otherwise check the .s file".
I see, a sort of GCC_CHECK_S_OR_LINK ;) Thanks for the explanation, I
didn't write that test. If you have a patch ready for it, consider it
pre-approved, otherwise I may come to it but not very soon, I was not
aware of the issue.
Paolo.