commit:     61e7ac42294e6e048d4937ca5658aedde6675c13
Author:     Sergei Trofimovich <slyfox <AT> gentoo <DOT> org>
AuthorDate: Thu May 12 09:30:20 2016 +0000
Commit:     Sergei Trofimovich <slyfox <AT> gentoo <DOT> org>
CommitDate: Thu May 12 09:30:26 2016 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=61e7ac42

dev-haskell/semigroups: fix build failure with USE=-*, bug #582744

Reported-by: Thomas Beutin
Bug: https://bugs.gentoo.org/582744

Package-Manager: portage-2.2.28

 .../semigroups/files/semigroups-0.15.1-trust.patch | 32 ++++++++++++++++++++++
 dev-haskell/semigroups/semigroups-0.15.1.ebuild    |  4 +++
 2 files changed, 36 insertions(+)

diff --git a/dev-haskell/semigroups/files/semigroups-0.15.1-trust.patch 
b/dev-haskell/semigroups/files/semigroups-0.15.1-trust.patch
new file mode 100644
index 0000000..ff66afa
--- /dev/null
+++ b/dev-haskell/semigroups/files/semigroups-0.15.1-trust.patch
@@ -0,0 +1,32 @@
+commit 118b29f5404014d0a627767a4c7e8de4f00f9fce
+Author: João Cristóvão <[email protected]>
+Date:   Wed Jul 23 12:27:29 2014 +0100
+
+    If GHC >= 7.8 module is always Thrustworthy, never safe, due to GHC.Exts
+
+diff --git a/src/Data/List/NonEmpty.hs b/src/Data/List/NonEmpty.hs
+index 8a28020..f3c2db5 100644
+--- a/src/Data/List/NonEmpty.hs
++++ b/src/Data/List/NonEmpty.hs
+@@ -1,7 +1,7 @@
+ {-# LANGUAGE CPP #-}
+ 
+ #if defined(__GLASGOW_HASKELL__) && __GLASGOW_HASKELL__ >= 702
+-#ifdef MIN_VERSION_hashable
++#if defined(MIN_VERSION_hashable) || __GLASGOW_HASKELL__ >= 708
+ {-# LANGUAGE Trustworthy #-}
+ #else
+ {-# LANGUAGE Safe #-}
+diff --git a/src/Data/Semigroup.hs b/src/Data/Semigroup.hs
+index 7d41775..88fcbb0 100644
+--- a/src/Data/Semigroup.hs
++++ b/src/Data/Semigroup.hs
+@@ -8,7 +8,7 @@
+ #if defined(__GLASGOW_HASKELL__) && __GLASGOW_HASKELL__ >= 702
+ #define LANGUAGE_DefaultSignatures
+ {-# LANGUAGE DefaultSignatures #-}
+-#ifdef MIN_VERSION_hashable
++#if defined(MIN_VERSION_hashable) || __GLASGOW_HASKELL__ >= 708
+ {-# LANGUAGE Trustworthy #-}
+ #else
+ {-# LANGUAGE Safe #-}

diff --git a/dev-haskell/semigroups/semigroups-0.15.1.ebuild 
b/dev-haskell/semigroups/semigroups-0.15.1.ebuild
index 226146d..64bdf83 100644
--- a/dev-haskell/semigroups/semigroups-0.15.1.ebuild
+++ b/dev-haskell/semigroups/semigroups-0.15.1.ebuild
@@ -28,6 +28,10 @@ DEPEND="${RDEPEND}
        >=dev-haskell/cabal-1.10
 "
 
+src_prepare() {
+       epatch "${FILESDIR}"/${P}-trust.patch
+}
+
 src_configure() {
        haskell-cabal_src_configure \
                $(cabal_flag bytestring bytestring) \

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