From b83efe1e00531db386b119fc00a13ab0353d9d8e Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <slyfox@gentoo.org>
Date: Sun, 27 Dec 2020 10:08:11 +0000
Subject: [PATCH] dev-haskell/linear: allow new base-orphans-0.8
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Reported-by: Toralf Förster
Closes: https://bugs.gentoo.org/761820
Package-Manager: Portage-3.0.12, Repoman-3.0.2
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
---
 .../files/linear-1.20.9-base-orphans-0.8.3.patch    | 13 +++++++++++++
 dev-haskell/linear/linear-1.20.9.ebuild             |  2 ++
 2 files changed, 15 insertions(+)
 create mode 100644 dev-haskell/linear/files/linear-1.20.9-base-orphans-0.8.3.patch

diff --git a/dev-haskell/linear/files/linear-1.20.9-base-orphans-0.8.3.patch b/dev-haskell/linear/files/linear-1.20.9-base-orphans-0.8.3.patch
new file mode 100644
index 0000000000000..c497de0b36a40
--- /dev/null
+++ b/dev-haskell/linear/files/linear-1.20.9-base-orphans-0.8.3.patch
@@ -0,0 +1,13 @@
+--- a/src/Linear/Instances.hs
++++ b/src/Linear/Instances.hs
+@@ -21,8 +21,10 @@ import Control.Monad.Zip
+ import Data.Complex
+ import Data.Orphans ()
+ 
++#if ! MIN_VERSION_base_orphans(0,8,3)
+ instance MonadZip Complex where
+   mzipWith = liftA2
+ 
+ instance MonadFix Complex where
+   mfix f = (let a :+ _ = f a in a) :+ (let _ :+ a = f a in a)
++#endif
diff --git a/dev-haskell/linear/linear-1.20.9.ebuild b/dev-haskell/linear/linear-1.20.9.ebuild
index ebf29418bf02f..2a04c9081129f 100644
--- a/dev-haskell/linear/linear-1.20.9.ebuild
+++ b/dev-haskell/linear/linear-1.20.9.ebuild
@@ -47,6 +47,8 @@ DEPEND="${RDEPEND}
 		>=dev-haskell/test-framework-hunit-0.3 )
 "
 
+PATCHES=("${FILESDIR}"/${P}-base-orphans-0.8.3.patch)
+
 src_configure() {
 	haskell-cabal_src_configure \
 		--flag=-herbie \