https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101228
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |MOVED
--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
<execution> requires TBB, as documented:
https://gcc.gnu.org/onlinedocs/libstdc++/manual/status.html#status.iso.2017
"Note 3: The Parallel Algorithms have an external dependency on Intel TBB 2018
or later. If the <execution> header is included then -ltbb must be used to link
to TBB."
If you use the parallel algos (or just include their headers) then the TBB
headers are included. That's by design, they don't work otherwise. We can't do
anythign about the fact that Intel deprecated their own API shortly after using
contributing the PSTL headers to GCC, which depend on that API.
