https://blogs.gentoo.org/ago/2020/07/04/gentoo-tinderbox/ Issue: dev-haskell/enumerator-0.4.20 fails to compile. Discovered on: amd64 (internal ref: tinderbox) NOTE: This machine uses a clang/LLVM toolchain. If you think that this issue is strictly related to clang/LLVM please block bug 408963. If you think that this issue is strictly related to the LLD linker, please block bug 731004.
Created attachment 652866 [details] build.log build log and emerge --info
> [;1mlib/Data/Enumerator/Internal.hs:74:10: [;1m[31merror:[0m[0m[;1m[0m[0m[;1m > • No instance for (Semigroup (Stream a)) > arising from the superclasses of an instance declaration > • In the instance declaration for ‘Monoid (Stream a)’[0m[0m Needs a tweak for newer ghc.
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=cc7132bd3ce1c2a4622c71e7585c0290a8ada077 commit cc7132bd3ce1c2a4622c71e7585c0290a8ada077 Author: Sergei Trofimovich <slyfox@gentoo.org> AuthorDate: 2020-08-04 21:20:17 +0000 Commit: Sergei Trofimovich <slyfox@gentoo.org> CommitDate: 2020-08-04 21:20:17 +0000 dev-haskell/enumerator: tweak for ghc-8.8 Reported-by: Agostino Sarubbo Closes: https://bugs.gentoo.org/735866 Package-Manager: Portage-3.0.1, Repoman-2.3.23 Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org> dev-haskell/enumerator/enumerator-0.4.20.ebuild | 8 ++++++-- .../enumerator/files/enumerator-0.4.20-ghc84.patch | 21 +++++++++++++++++++++ 2 files changed, 27 insertions(+), 2 deletions(-)