Jonathan Wakely
ecf65330c1
The <span> header is empty unless Concepts are supported, but <version> defines the __cpp_lib_span feature test macro unconditionally. It should be guarded by the same conditions as in <span>. libstdc++-v3/ChangeLog: PR libstdc++/97869 * include/precompiled/stdc++.h: Include <coroutine>. * include/std/version (__cpp_lib_span): Check __cpp_lib_concepts before defining.
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