https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66338
--- Comment #12 from Andreas Krebbel <krebbel at gcc dot gnu.org> ---
(In reply to Ville Voutilainen from comment #11)
> I don't see how any of that code or the failure is in any way related to
> std::tuple...
This was the wrong error message. The bootstrap problem triggered by your
patch has probably been fixed already. This was the message from your patch:
In file included from
/home/andreas/patched/gcc-7.0.0-31-30052016-build/s390-ibm-linux-gnu/libstdc++-v3/include/functional:55:0,
from
/home/andreas/gcc/libstdc++-v3/include/precompiled/stdc++.h:71:
/home/andreas/patched/gcc-7.0.0-31-30052016-build/s390-ibm-linux-gnu/libstdc++-v3/include/tuple:632:27:
error: 'Elements' was not declared in this scope
&& !is_same<tuple<Elements...>,
^~~~~~~~
/home/andreas/patched/gcc-7.0.0-31-30052016-build/s390-ibm-linux-gnu/libstdc++-v3/include/tuple:632:35:
error: expected parameter pack before '...'
&& !is_same<tuple<Elements...>,
^~~
/home/andreas/patched/gcc-7.0.0-31-30052016-build/s390-ibm-linux-gnu/libstdc++-v3/include/tuple:632:38:
error: template argument 1 is invalid
&& !is_same<tuple<Elements...>,
^
/home/andreas/patched/gcc-7.0.0-31-30052016-build/s390-ibm-linux-gnu/libstdc++-v3/include/tuple:633:26:
error: template argument 1 is invalid
tuple<_UElements...>>::value,
^~
/home/andreas/patched/gcc-7.0.0-31-30052016-build/s390-ibm-linux-gnu/libstdc++-v3/include/tuple:634:35:
error: template argument 1 is invalid
_Elements...>;
^
/home/andreas/patched/gcc-7.0.0-31-30052016-build/s390-ibm-linux-gnu/libstdc++-v3/include/tuple:669:19:
error: '_TMCT' was not declared in this scope
enable_if<_TMCT<_UElements...>::template
^~~~~
/home/andreas/patched/gcc-7.0.0-31-30052016-build/s390-ibm-linux-gnu/libstdc++-v3/include/tuple:669:35:
error: expected parameter pack before '...'
....
