dev-lang/ghc: bump up to 8.0.2, no KEYWORDS or binaries yet

Package-Manager: Portage-2.3.3, Repoman-2.3.1

7 files changed, 942 insertions, 0 deletions

diff --git a/dev-lang/ghc/Manifest b/dev-lang/ghc/Manifest
index d15ace8f8f07..8fd1e4ecec7b 100644
--- a/dev-lang/ghc/Manifest
+++ b/dev-lang/ghc/Manifest
@@ -2,6 +2,7 @@ DIST binary-0.7.6.1.tar.gz 47086 SHA256 8f85cafc15be660757878a665d024ce595d4422f
 DIST ghc-7.10.3-src.tar.bz2 13281867 SHA256 3e29a56a74ed6a74d3ee2a6db9389f2462837da46ca6dce9d2965f9c152f0c15 SHA512 97a8282d8a75399c78d85d6faab7ac253a993dc69f1840358572f1878b8fd1a527c28801e5823c8200b5690e268e4a0c00941945ada13790852c75a83b612c17 WHIRLPOOL 04af6ea2738a1cc9e266efbb0e1b41b70d4cd915b48ca1265fade62b1c56cd51056fd1a82fc14cebc19a0c16782609a991c1a181ebe59574f1a10b4f26ad830d
 DIST ghc-7.8.4-ia64-CLOSUREs-regenerated.patch.gz 13268 SHA256 3bdff22e654aee6f942d43edf1bf6cf70404c0152c4fcf89276f10d2c4c5b4b9 SHA512 a655713e06324b56f0041edf70837487e296d28e6f3ee35fe116b9938765aaf3469d25e92645e0940655ed3607dff27d3826fe0f995c84e81b51bfc956816e7d WHIRLPOOL d2cb53bdc6debc0278d554168ea3ab22b0fd8314adac81444637278a92d21b766280fedfb4b7d1b4540c7381c7962dec6b13a799ab2fee4d456fe2875d5c6a5b
 DIST ghc-7.8.4-src.tar.bz2 10600755 SHA256 59e3bd514a1820cc1c03e1808282205c0b8518369acae12645ceaf839e6f114b SHA512 079a53891d8ebd8d9b88da96170e60981608a619f8282e4b7948f35244e99bd87277649ac7fcebc227a61a4d21960db8d5e5b9e92f2c69c82d8d68d7fd0a41d3 WHIRLPOOL a9be7641adbd237ed6e0f644c312e655e98be9566097aee5e2c0022e8756d5b2236e42dd86d76c638a001b5ca3f67307e89ec0cd003a92cd112a5d6d3e3d8467
+DIST ghc-8.0.2-src.tar.xz 10687760 SHA256 11625453e1d0686b3fa6739988f70ecac836cadc30b9f0c8b49ef9091d6118b1 SHA512 58ea3853cd93b556ecdc4abd0be079b2621171b8491f59004ea4e036a4cba4470aaafe6591b942e0a50a64bdc47540e01fe6900212a1ef7087850112d9bfc5ef WHIRLPOOL 5ffd94f797c32c87d9d818acbb1a41f2c140d6f1da169854aab6eece7a41499b55fc573f9a4fbcccf09dcfc92e460d8c91be5efd8650837e8bfba009b04261b1
 DIST ghc-bin-7.10.3-alpha.tbz2 183558856 SHA256 780ac45b9b38fb40f08eeb7dae741649ac19dce2271df4bc764cac9be6c5c225 SHA512 08709fe9b4036ab41715c9a637a2a160104e3ab9e0ed9efaaf73428e3cfe19619e50c42b72c60bbbd27be2b9c2ea68f63d72c1a27d4519756e7c0d909f724230 WHIRLPOOL f488ecc945c6100ba86b9ae25eb6a472693556be0205a6c8634f2c235e779fe17b391ced7fec5d89c0c6c3d21583fe9f9b80bf628f3307890becf3f3ffb57a96
 DIST ghc-bin-7.10.3-amd64.tbz2 112040431 SHA256 c3c71aff288f7de2785d1c3d54f0fd636144eb3dcb590bdda087b0775203e517 SHA512 e1554b3944edbe8e16537de5a29132dc6a22d780d9a700cdc9b76387b94191164398d6f2242bf8199527802572e2bb02545569d4f0930a0ee0dbfdeb25978558 WHIRLPOOL c2497a9565abf7d37e7928f508f7bf7241dd529aa252da708517f9f067e3d016341b7a73cac34888b99c9b84a8d01fd9e8d76f2b332d53e0d708b078f20ee807
 DIST ghc-bin-7.10.3-ia64.tbz2 238680956 SHA256 0da9b5966f0920341f4cf041b814817e1ed06060e8a491481ab19a68153767db SHA512 3694011aec8a6dc37889418b318993cb82f9b46a5175dd837713f396c8f59a19a920e0b0669fe3b4ec37d5bd8837c115264c0a8fc97c5a4ce06a3bdd52fcfce5 WHIRLPOOL 9e059a953607b6477ea7c27bf55175d838c6aa3c57fcf92f13fa6112e9e728037073047be300a5a757395d759d30545546cb46816ec879a2d31c3c0a78868e42
diff --git a/dev-lang/ghc/files/ghc-8.0.1-limit-jN.patch b/dev-lang/ghc/files/ghc-8.0.1-limit-jN.patch
new file mode 100644
index 000000000000..dc5410da3020
--- /dev/null
+++ b/dev-lang/ghc/files/ghc-8.0.1-limit-jN.patch
@@ -0,0 +1,50 @@
+commit 501e05bb1b8974fc8b6c9eee86c87c367e87a211
+Author: Sergei Trofimovich <slyfox@gentoo.org>
+Date:   Tue Aug 30 12:10:47 2016 +0100
+
+    GhcMake: limit Capability count to CPU count in parallel mode
+    
+    In Trac #9221 one of problems using high --jobs=<N>
+    is amount of mutator (or GC) threads we crate.
+    
+    We use userspace spinning-and-yielding (see ACQUIRE_SPIN_LOCK)
+    to acess work stealing queues. In case of
+    N-worker-threads > N-CPUs fraction of time when
+    thread holding spin lock gets descheduled by kernel
+    increases. That causes other threads to waste CPU time
+    before giving up CPU.
+    
+    Signed-off-by: Sergei Trofimovich <siarheit@google.com>
+    
+    Test Plan:
+    ghc --make -j8 and -j80 have comparable sys time
+    on a 8-core system.
+    
+    Reviewers: austin, gintas, bgamari, simonmar
+    
+    Reviewed By: bgamari, simonmar
+    
+    Subscribers: thomie
+    
+    Differential Revision: https://phabricator.haskell.org/D2482
+    
+    GHC Trac Issues: #9221
+
+diff --git a/compiler/main/GhcMake.hs b/compiler/main/GhcMake.hs
+index 9dc43cd..905df63 100644
+--- a/compiler/main/GhcMake.hs
++++ b/compiler/main/GhcMake.hs
+@@ -761,7 +761,12 @@ parUpsweep n_jobs old_hpt stable_mods cleanup sccs = do
+ 
+     let updNumCapabilities = liftIO $ do
+             n_capabilities <- getNumCapabilities
+-            unless (n_capabilities /= 1) $ setNumCapabilities n_jobs
++            n_cpus <- getNumProcessors
++            -- Setting number of capabilities more than
++            -- CPU count usually leads to high userspace
++            -- lock contention. Trac #9221
++            let n_caps = min n_jobs n_cpus
++            unless (n_capabilities /= 1) $ setNumCapabilities n_caps
+             return n_capabilities
+     -- Reset the number of capabilities once the upsweep ends.
+     let resetNumCapabilities orig_n = liftIO $ setNumCapabilities orig_n
diff --git a/dev-lang/ghc/files/ghc-8.0.1-par-g0-on-A32.patch b/dev-lang/ghc/files/ghc-8.0.1-par-g0-on-A32.patch
new file mode 100644
index 000000000000..b46e57301782
--- /dev/null
+++ b/dev-lang/ghc/files/ghc-8.0.1-par-g0-on-A32.patch
@@ -0,0 +1,65 @@
+commit bdfc5375f219d6def81effda4e57cb56d01fc917
+Author: Sergei Trofimovich <slyfox@gentoo.org>
+Date:   Tue Aug 30 12:10:54 2016 +0100
+
+    rts: enable parallel GC scan of large (32M+) allocation area
+    
+    Parallel GC does not scan large allocation area (-A)
+    effectively as it does not do work stealing from nursery
+    by default.
+    
+    That leads to large imbalance when only one of threads
+    overflows allocation area: most of GC threads finish
+    quickly (as there is not much to collect) and sit idle
+    waiting while single GC thread finishes scan of single
+    allocation area for that thread.
+    
+    The patch enables work stealing for (equivalent of -qb0)
+    allocation area of -A32M or higher.
+    
+    Tested on a highlighting-kate package from Trac #9221
+    
+    On 8-core machine the difference is around 5% faster
+    of wall-clock time. On 24-core VM the speedup is 20%.
+    
+    Signed-off-by: Sergei Trofimovich <siarheit@google.com>
+    
+    Test Plan: measured wall time and GC parallelism on highlighting-kate build
+    
+    Reviewers: austin, bgamari, erikd, simonmar
+    
+    Reviewed By: bgamari, simonmar
+    
+    Subscribers: thomie
+    
+    Differential Revision: https://phabricator.haskell.org/D2483
+    
+    GHC Trac Issues: #9221
+
+diff --git a/rts/RtsFlags.c b/rts/RtsFlags.c
+index fda33f0..7a719b9 100644
+--- a/rts/RtsFlags.c
++++ b/rts/RtsFlags.c
+@@ -237,1 +237,1 @@ void initRtsFlagsDefaults(void)
+-    RtsFlags.ParFlags.parGcLoadBalancingGen = 1;
++    RtsFlags.ParFlags.parGcLoadBalancingGen = ~0u; /* auto, based on -A */
+@@ -1398,2 +1390,19 @@ static void normaliseRtsOpts (void)
+     }
+ 
++#ifdef THREADED_RTS
++    if (RtsFlags.ParFlags.parGcLoadBalancingGen == ~0u) {
++        StgWord alloc_area_bytes
++            = RtsFlags.GcFlags.minAllocAreaSize * BLOCK_SIZE;
++
++        // If allocation area is larger that CPU cache
++        // we can finish scanning quicker doing work-stealing
++        // scan. Trac #9221
++        // 32M looks big enough not to fit into L2 cache
++        // of popular modern CPUs.
++        if (alloc_area_bytes >= 32 * 1024 * 1024) {
++            RtsFlags.ParFlags.parGcLoadBalancingGen = 0;
++        } else {
++            RtsFlags.ParFlags.parGcLoadBalancingGen = 1;
++        }
++    }
++#endif
diff --git a/dev-lang/ghc/files/ghc-8.0.1-ww-args-limit.patch b/dev-lang/ghc/files/ghc-8.0.1-ww-args-limit.patch
new file mode 100644
index 000000000000..4752f4482678
--- /dev/null
+++ b/dev-lang/ghc/files/ghc-8.0.1-ww-args-limit.patch
@@ -0,0 +1,127 @@
+commit 5efbf0d243984444cf352ad6f0d147e226c64498
+Author: Sergei Trofimovich <slyfox@gentoo.org>
+Date:   Thu Sep 1 17:34:58 2016 +0100
+
+    restore -fmax-worker-args handling (Trac #11565)
+    
+    maxWorkerArgs handling was accidentally lost 3 years ago
+    in a major update of demand analysis
+        commit 0831a12ea2fc73c33652eeec1adc79fa19700578
+    
+    Old regression is noticeable as:
+    - code bloat (requires stack reshuffling)
+    - compilation slowdown (more code to optimise/generate)
+    - and increased heap usage (DynFlags unboxing/reboxing?)
+    
+    On a simple compile benchmark this change causes heap
+    allocation drop from 70G don to 67G (ghc perf build).
+    
+    Signed-off-by: Sergei Trofimovich <siarheit@google.com>
+    
+    Reviewers: simonpj, ezyang, goldfire, austin, bgamari
+    
+    Reviewed By: simonpj, ezyang
+    
+    Subscribers: thomie
+    
+    Differential Revision: https://phabricator.haskell.org/D2503
+    
+    GHC Trac Issues: #11565
+
+diff --git a/compiler/specialise/SpecConstr.hs b/compiler/specialise/SpecConstr.hs
+index 10d5614..7166f57 100644
+--- a/compiler/specialise/SpecConstr.hs
++++ b/compiler/specialise/SpecConstr.hs
+@@ -29,7 +29,7 @@ import CoreFVs          ( exprsFreeVarsList )
+ import CoreMonad
+ import Literal          ( litIsLifted )
+ import HscTypes         ( ModGuts(..) )
+-import WwLib            ( mkWorkerArgs )
++import WwLib            ( isWorkerSmallEnough, mkWorkerArgs )
+ import DataCon
+ import Coercion         hiding( substCo )
+ import Rules
+@@ -1533,10 +1533,14 @@ specialise env bind_calls (RI { ri_fn = fn, ri_lam_bndrs = arg_bndrs
+ 
+   | Just all_calls <- lookupVarEnv bind_calls fn
+   = -- pprTrace "specialise entry {" (ppr fn <+> ppr (length all_calls)) $
+-    do  { (boring_call, pats) <- callsToPats env specs arg_occs all_calls
+-
++    do  { (boring_call, all_pats) <- callsToPats env specs arg_occs all_calls
+                 -- Bale out if too many specialisations
+-        ; let n_pats      = length pats
++        ; let pats = filter (is_small_enough . fst) all_pats
++              is_small_enough vars = isWorkerSmallEnough (sc_dflags env) vars
++                  -- We are about to construct w/w pair in 'spec_one'.
++                  -- Omit specialisation leading to high arity workers.
++                  -- See Note [Limit w/w arity]
++              n_pats      = length pats
+               spec_count' = n_pats + spec_count
+         ; case sc_count env of
+             Just max | not (sc_force env) && spec_count' > max
+diff --git a/compiler/stranal/WwLib.hs b/compiler/stranal/WwLib.hs
+index 09bc204..d9460d9 100644
+--- a/compiler/stranal/WwLib.hs
++++ b/compiler/stranal/WwLib.hs
+@@ -8,6 +8,7 @@
+ 
+ module WwLib ( mkWwBodies, mkWWstr, mkWorkerArgs
+              , deepSplitProductType_maybe, findTypeShape
++             , isWorkerSmallEnough
+  ) where
+ 
+ #include "HsVersions.h"
+@@ -144,7 +145,8 @@ mkWwBodies dflags fam_envs fun_ty demands res_info one_shots
+               wrapper_body = wrap_fn_args . wrap_fn_cpr . wrap_fn_str . applyToVars work_call_args . Var
+               worker_body = mkLams work_lam_args. work_fn_str . work_fn_cpr . work_fn_args
+ 
+-        ; if useful1 && not (only_one_void_argument) || useful2
++        ; if isWorkerSmallEnough dflags work_args
++             && (useful1 && not only_one_void_argument || useful2)
+           then return (Just (worker_args_dmds, wrapper_body, worker_body))
+           else return Nothing
+         }
+@@ -165,6 +167,12 @@ mkWwBodies dflags fam_envs fun_ty demands res_info one_shots
+       | otherwise
+       = False
+ 
++-- See Note [Limit w/w arity]
++isWorkerSmallEnough :: DynFlags -> [Var] -> Bool
++isWorkerSmallEnough dflags vars = count isId vars <= maxWorkerArgs dflags
++    -- We count only Free variables (isId) to skip Type, Kind
++    -- variables which have no runtime representation.
++
+ {-
+ Note [Always do CPR w/w]
+ ~~~~~~~~~~~~~~~~~~~~~~~~
+@@ -178,6 +186,30 @@ a disaster, because then the enclosing function might say it has the CPR
+ property, but now doesn't and there a cascade of disaster.  A good example
+ is Trac #5920.
+ 
++Note [Limit w/w arity]
++~~~~~~~~~~~~~~~~~~~~~~~~
++Guard against high worker arity as it generates a lot of stack traffic.
++A simplified example is Trac #11565#comment:6
++
++Current strategy is very simple: don't perform w/w transformation at all
++if the result produces a wrapper with arity higher than -fmax-worker-args=.
++
++It is a bit all or nothing, consider
++
++        f (x,y) (a,b,c,d,e ... , z) = rhs
++
++Currently we will remove all w/w ness entirely. But actually we could
++w/w on the (x,y) pair... it's the huge product that is the problem.
++
++Could we instead refrain from w/w on an arg-by-arg basis? Yes, that'd
++solve f. But we can get a lot of args from deeply-nested products:
++
++        g (a, (b, (c, (d, ...)))) = rhs
++
++This is harder to spot on an arg-by-arg basis. Previously mkWwStr was
++given some "fuel" saying how many arguments it could add; when we ran
++out of fuel it would stop w/wing.
++Still not very clever because it had a left-right bias.
+ 
+ ************************************************************************
+ *                                                                      *
diff --git a/dev-lang/ghc/files/ghc-8.0.1_rc1-cgen-constify.patch b/dev-lang/ghc/files/ghc-8.0.1_rc1-cgen-constify.patch
new file mode 100644
index 000000000000..877a5827e4ea
--- /dev/null
+++ b/dev-lang/ghc/files/ghc-8.0.1_rc1-cgen-constify.patch
@@ -0,0 +1,34 @@
+commit b0cf3ab7a69b878a4335d21a347b56e4b0ca0b7b
+Author: Sergei Trofimovich <slyfox@gentoo.org>
+Date:   Mon Apr 14 19:06:24 2014 +0300
+
+    compiler/cmm/PprC.hs: constify local string literals
+    
+    Consider one-line module
+        module B (v) where v = "hello"
+    in -fvia-C mode it generates code like
+        static char gibberish_str[] = "hello";
+    
+    It uselessly eats data section (precious resource on ia64!).
+    The patch switches genrator to emit:
+        static const char gibberish_str[] = "hello";
+    
+    Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
+
+diff --git a/compiler/cmm/PprC.hs b/compiler/cmm/PprC.hs
+index 2398981..fdb578d 100644
+--- a/compiler/cmm/PprC.hs
++++ b/compiler/cmm/PprC.hs
+@@ -112,6 +112,12 @@ pprTop (CmmProc infos clbl _ graph) =
+ 
+ -- We only handle (a) arrays of word-sized things and (b) strings.
+ 
++pprTop (CmmData (Section ReadOnlyData _) (Statics lbl [CmmString str])) =
++  hcat [
++    pprLocalness lbl, ptext (sLit "const char "), ppr lbl,
++    ptext (sLit "[] = "), pprStringInCStyle str, semi
++  ]
++
+ pprTop (CmmData _section (Statics lbl [CmmString str])) =
+   hcat [
+     pprLocalness lbl, ptext (sLit "char "), ppr lbl,
diff --git a/dev-lang/ghc/files/ghc-8.0.2_rc2-old-sphinx.patch b/dev-lang/ghc/files/ghc-8.0.2_rc2-old-sphinx.patch
new file mode 100644
index 000000000000..a4d49d3ef808
--- /dev/null
+++ b/dev-lang/ghc/files/ghc-8.0.2_rc2-old-sphinx.patch
@@ -0,0 +1,12 @@
+diff --git a/docs/users_guide/profiling.rst b/docs/users_guide/profiling.rst
+index 4d0bb3a..f980f72 100644
+--- a/docs/users_guide/profiling.rst
++++ b/docs/users_guide/profiling.rst
+@@ -435,7 +435,2 @@ To generate a heap profile from your program:
+ 
+-For example, here is a heap profile produced for the ``sphere`` program
+-from GHC's ``nofib`` benchmark suite,
+-
+-.. image:: images/prof_scc.*
+-
+ You might also want to take a look at
diff --git a/dev-lang/ghc/ghc-8.0.2.ebuild b/dev-lang/ghc/ghc-8.0.2.ebuild
new file mode 100644
index 000000000000..2cba08eca272
--- /dev/null
+++ b/dev-lang/ghc/ghc-8.0.2.ebuild
@@ -0,0 +1,653 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI=5
+
+# to make make a crosscompiler use crossdev and symlink ghc tree into
+# cross overlay. result would look like 'cross-sparc-unknown-linux-gnu/ghc'
+#
+# 'CTARGET' definition and 'is_crosscompile' are taken from 'toolchain.eclass'
+export CTARGET=${CTARGET:-${CHOST}}
+if [[ ${CTARGET} = ${CHOST} ]] ; then
+	if [[ ${CATEGORY/cross-} != ${CATEGORY} ]] ; then
+		export CTARGET=${CATEGORY/cross-}
+	fi
+fi
+
+inherit autotools bash-completion-r1 eutils flag-o-matic ghc-package
+inherit multilib pax-utils toolchain-funcs versionator prefix
+
+DESCRIPTION="The Glasgow Haskell Compiler"
+HOMEPAGE="http://www.haskell.org/ghc/"
+
+# we don't have any binaries yet
+arch_binaries=""
+
+# sorted!
+#arch_binaries="$arch_binaries alpha? ( http://code.haskell.org/~slyfox/ghc-alpha/ghc-bin-${PV}-alpha.tbz2 )"
+#arch_binaries="$arch_binaries arm? ( http://code.haskell.org/~slyfox/ghc-arm/ghc-bin-${PV}-arm.tbz2 )"
+#arch_binaries="$arch_binaries amd64? ( http://code.haskell.org/~slyfox/ghc-amd64/ghc-bin-${PV}-amd64.tbz2 )"
+#arch_binaries="$arch_binaries ia64?  ( http://code.haskell.org/~slyfox/ghc-ia64/ghc-bin-${PV}-ia64-fixed-fiw.tbz2 )"
+#arch_binaries="$arch_binaries ppc? ( http://code.haskell.org/~slyfox/ghc-ppc/ghc-bin-${PV}-ppc.tbz2 )"
+#arch_binaries="$arch_binaries ppc64? ( http://code.haskell.org/~slyfox/ghc-ppc64/ghc-bin-${PV}-ppc64.tbz2 )"
+#arch_binaries="$arch_binaries sparc? ( http://code.haskell.org/~slyfox/ghc-sparc/ghc-bin-${PV}-sparc.tbz2 )"
+#arch_binaries="$arch_binaries x86? ( http://code.haskell.org/~slyfox/ghc-x86/ghc-bin-${PV}-x86.tbz2 )"
+
+# various ports:
+#arch_binaries="$arch_binaries x86-fbsd? ( http://code.haskell.org/~slyfox/ghc-x86-fbsd/ghc-bin-${PV}-x86-fbsd.tbz2 )"
+
+# 0 - yet
+yet_binary() {
+	case "${ARCH}" in
+		#alpha) return 0 ;;
+		#arm)
+		#	ewarn "ARM binary is built on armv5tel-eabi toolchain. Use with caution."
+		#	return 0
+		#;;
+		#amd64) return 0 ;;
+		#ia64) return 0 ;;
+		#ppc) return 0 ;;
+		#ppc64) return 0 ;;
+		#sparc) return 0 ;;
+		#x86) return 0 ;;
+		*) return 1 ;;
+	esac
+}
+
+GHC_PV=${PV}
+#GHC_PV=8.0.1.20161213 # uncomment only for -rc ebuilds
+GHC_P=${PN}-${GHC_PV} # using ${P} is almost never correct
+
+SRC_URI="!binary? ( http://downloads.haskell.org/~ghc/${PV/_rc/-rc}/${GHC_P}-src.tar.xz )"
+S="${WORKDIR}"/${GHC_P}
+
+[[ -n $arch_binaries ]] && SRC_URI+=" !ghcbootstrap? ( $arch_binaries )"
+
+BUMP_LIBRARIES=(
+	# "hackage-name          hackage-version"
+)
+
+LICENSE="BSD"
+SLOT="0/${PV}"
+#KEYWORDS="~amd64 ~x86 ~amd64-linux ~x86-linux"
+IUSE="doc ghcbootstrap ghcmakebinary +gmp +profile"
+IUSE+=" binary"
+
+RDEPEND="
+	>=dev-lang/perl-5.6.1
+	dev-libs/gmp:0=
+	sys-libs/ncurses:=[unicode]
+	!ghcmakebinary? ( virtual/libffi:= )
+"
+# gentoo binaries are built against ncurses-6
+RDEPEND+="
+	binary? (
+		|| (
+			sys-libs/ncurses:0/6
+			sys-libs/ncurses:5/6
+		)
+	)
+"
+
+DEPEND="${RDEPEND}
+	doc? ( app-text/docbook-xml-dtd:4.2
+		app-text/docbook-xml-dtd:4.5
+		app-text/docbook-xsl-stylesheets
+		dev-python/sphinx
+		>=dev-libs/libxslt-1.1.2 )
+"
+
+PDEPEND="!ghcbootstrap? ( =app-admin/haskell-updater-1.2* )"
+
+REQUIRED_USE="?? ( ghcbootstrap binary )"
+
+# haskell libraries built with cabal in configure mode, #515354
+QA_CONFIGURE_OPTIONS+=" --with-compiler --with-gcc"
+
+is_crosscompile() {
+	[[ ${CHOST} != ${CTARGET} ]]
+}
+
+# returns tool prefix for crosscompiler.
+# Example:
+#  CTARGET=armv7a-unknown-linux-gnueabi
+#  CHOST=x86_64-pc-linux-gnu
+#    "armv7a-unknown-linux-gnueabi-"
+#  CTARGET=${CHOST}
+#    ""
+# Used in tools and library prefix:
+#    "${ED}"/usr/bin/$(cross)haddock
+#    "${ED}/usr/$(get_libdir)/$(cross)${GHC_P}/package.conf.d"
+
+cross() {
+	if is_crosscompile; then
+		echo "${CTARGET}-"
+	else
+		echo ""
+	fi
+}
+
+append-ghc-cflags() {
+	local persistent compile assemble link
+	local flag ghcflag
+
+	for flag in $*; do
+		case ${flag} in
+			persistent)	persistent="yes";;
+			compile)	compile="yes";;
+			assemble)	assemble="yes";;
+			link)		link="yes";;
+			*)
+				[[ ${compile}  ]] && ghcflag="-optc${flag}"  CFLAGS+=" ${flag}" && GHC_FLAGS+=" ${ghcflag}" &&
+					[[ ${persistent} ]] && GHC_PERSISTENT_FLAGS+=" ${ghcflag}"
+				[[ ${assemble} ]] && ghcflag="-opta${flag}"  CFLAGS+=" ${flag}" && GHC_FLAGS+=" ${ghcflag}" &&
+					[[ ${persistent} ]] && GHC_PERSISTENT_FLAGS+=" ${ghcflag}"
+				[[ ${link}     ]] && ghcflag="-optl${flag}" LDFLAGS+=" ${flag}" && GHC_FLAGS+=" ${ghcflag}" &&
+					[[ ${persistent} ]] && GHC_PERSISTENT_FLAGS+=" ${ghcflag}"
+				;;
+		esac
+	done
+}
+
+# $1 - lib name (under libraries/)
+# $2 - lib version
+# example: bump_lib "transformers" "0.4.2.0"
+bump_lib() {
+	local pn=$1 pv=$2
+	local p=${pn}-${pv}
+	local f
+
+	einfo "Bumping ${pn} up to ${pv}"
+
+	for f in ghc.mk GNUmakefile; do
+		mv libraries/"${pn}"/$f "${WORKDIR}"/"${p}"/$f || die
+	done
+	mv libraries/"${pn}" "${WORKDIR}"/"${pn}".old || die
+	mv "${WORKDIR}"/"${p}" libraries/"${pn}" || die
+}
+
+update_SRC_URI() {
+	local p pn pv
+	for p in "${BUMP_LIBRARIES[@]}"; do
+		set -- $p
+		pn=$1 pv=$2
+
+		SRC_URI+=" mirror://hackage/package/${pn}/${pn}-${pv}.tar.gz"
+	done
+}
+
+update_SRC_URI
+
+bump_libs() {
+	local p pn pv
+	for p in "${BUMP_LIBRARIES[@]}"; do
+		set -- $p
+		pn=$1 pv=$2
+
+		bump_lib "${pn}" "${pv}"
+	done
+}
+
+ghc_setup_cflags() {
+	if is_crosscompile; then
+		export CFLAGS=${GHC_CFLAGS-"-O2 -pipe"}
+		export LDFLAGS=${GHC_LDFLAGS-"-Wl,-O1"}
+		einfo "Crosscompiling mode:"
+		einfo "   CHOST:   ${CHOST}"
+		einfo "   CTARGET: ${CTARGET}"
+		einfo "   CFLAGS:  ${CFLAGS}"
+		einfo "   LDFLAGS: ${LDFLAGS}"
+		einfo "   prefix: $(cross)"
+		return
+	fi
+	# We need to be very careful with the CFLAGS we ask ghc to pass through to
+	# gcc. There are plenty of flags which will make gcc produce output that
+	# breaks ghc in various ways. The main ones we want to pass through are
+	# -mcpu / -march flags. These are important for arches like alpha & sparc.
+	# We also use these CFLAGS for building the C parts of ghc, ie the rts.
+	strip-flags
+	strip-unsupported-flags
+
+	# Cmm can't parse line numbers #482086
+	replace-flags -ggdb[3-9] -ggdb2
+
+	GHC_FLAGS=""
+	GHC_PERSISTENT_FLAGS=""
+	for flag in ${CFLAGS}; do
+		case ${flag} in
+
+			# Ignore extra optimisation (ghc passes -O to gcc anyway)
+			# -O2 and above break on too many systems
+			-O*) ;;
+
+			# Arch and ABI flags are what we're really after
+			-m*) append-ghc-cflags compile assemble ${flag};;
+
+			# Sometimes it's handy to see backtrace of RTS
+			# to get an idea what happens there
+			-g*) append-ghc-cflags compile ${flag};;
+
+			# Ignore all other flags, including all -f* flags
+		esac
+	done
+
+	for flag in ${LDFLAGS}; do
+		append-ghc-cflags link ${flag}
+	done
+
+	# hardened-gcc needs to be disabled, because the mangler doesn't accept
+	# its output.
+	gcc-specs-pie && append-ghc-cflags persistent compile link -nopie
+	gcc-specs-ssp && append-ghc-cflags persistent compile      -fno-stack-protector
+
+	# prevent from failind building unregisterised ghc:
+	# http://www.mail-archive.com/debian-bugs-dist@lists.debian.org/msg171602.html
+	use ppc64 && append-ghc-cflags persistent compile -mminimal-toc
+}
+
+# substitutes string $1 to $2 in files $3 $4 ...
+relocate_path() {
+	local from=$1
+	local   to=$2
+	shift 2
+	local file=
+	for file in "$@"
+	do
+		sed -i -e "s|$from|$to|g" \
+			"$file" || die "path relocation failed for '$file'"
+	done
+}
+
+# changes hardcoded ghc paths and updates package index
+# $1 - new absolute root path
+relocate_ghc() {
+	local to=$1
+
+	# libdir for prebuilt binary and for current system may mismatch
+	# It does for prefix installation for example: bug #476998
+	local bin_ghc_prefix=${WORKDIR}/usr
+	local bin_libpath=$(echo "${bin_ghc_prefix}"/lib*)
+	local bin_libdir=${bin_libpath#${bin_ghc_prefix}/}
+
+	# backup original script to use it later after relocation
+	local gp_back="${T}/ghc-pkg-${GHC_PV}-orig"
+	cp "${WORKDIR}/usr/bin/$(cross)ghc-pkg-${GHC_PV}" "$gp_back" || die "unable to backup ghc-pkg wrapper"
+
+	if [[ ${bin_libdir} != $(get_libdir) ]]; then
+		einfo "Relocating '${bin_libdir}' to '$(get_libdir)' (bug #476998)"
+		# moving the dir itself is not strictly needed
+		# but then USE=binary would result in installing
+		# in '${bin_libdir}'
+		mv "${bin_ghc_prefix}/${bin_libdir}" "${bin_ghc_prefix}/$(get_libdir)" || die
+
+		relocate_path "/usr/${bin_libdir}" "/usr/$(get_libdir)" \
+			"${WORKDIR}/usr/bin/$(cross)ghc-${GHC_PV}" \
+			"${WORKDIR}/usr/bin/$(cross)ghci-${GHC_PV}" \
+			"${WORKDIR}/usr/bin/$(cross)ghc-pkg-${GHC_PV}" \
+			"${WORKDIR}/usr/bin/$(cross)hsc2hs" \
+			"${WORKDIR}/usr/bin/$(cross)runghc-${GHC_PV}" \
+			"$gp_back" \
+			"${WORKDIR}/usr/$(get_libdir)/$(cross)${GHC_P}/package.conf.d/"*
+	fi
+
+	# Relocate from /usr to ${EPREFIX}/usr
+	relocate_path "/usr" "${to}/usr" \
+		"${WORKDIR}/usr/bin/$(cross)ghc-${GHC_PV}" \
+		"${WORKDIR}/usr/bin/$(cross)ghci-${GHC_PV}" \
+		"${WORKDIR}/usr/bin/$(cross)ghc-pkg-${GHC_PV}" \
+		"${WORKDIR}/usr/bin/$(cross)hsc2hs" \
+		"${WORKDIR}/usr/bin/$(cross)runghc-${GHC_PV}" \
+		"${WORKDIR}/usr/$(get_libdir)/$(cross)${GHC_P}/package.conf.d/"*
+
+	# this one we will use to regenerate cache
+	# so it should point to current tree location
+	relocate_path "/usr" "${WORKDIR}/usr" "$gp_back"
+
+	if use prefix; then
+		# and insert LD_LIBRARY_PATH entry to EPREFIX dir tree
+		# TODO: add the same for darwin's CHOST and it's DYLD_
+		local new_ldpath='LD_LIBRARY_PATH="'${EPREFIX}/$(get_libdir):${EPREFIX}/usr/$(get_libdir)'${LD_LIBRARY_PATH:+:}${LD_LIBRARY_PATH}"\nexport LD_LIBRARY_PATH'
+		sed -i -e '2i'"$new_ldpath" \
+			"${WORKDIR}/usr/bin/$(cross)ghc-${GHC_PV}" \
+			"${WORKDIR}/usr/bin/$(cross)ghci-${GHC_PV}" \
+			"${WORKDIR}/usr/bin/$(cross)ghc-pkg-${GHC_PV}" \
+			"${WORKDIR}/usr/bin/$(cross)hsc2hs" \
+			"${WORKDIR}/usr/bin/$(cross)runghc-${GHC_PV}" \
+			"$gp_back" \
+			|| die "Adding LD_LIBRARY_PATH for wrappers failed"
+		hprefixify "${bin_libpath}"/${PN}*/settings
+	fi
+
+	# regenerate the binary package cache
+	"$gp_back" recache || die "failed to update cache after relocation"
+	rm "$gp_back"
+}
+
+pkg_setup() {
+	# quiet portage about prebuilt binaries
+	use binary && QA_PREBUILT="*"
+
+	[[ ${MERGE_TYPE} == binary ]] && return
+
+	if use ghcbootstrap; then
+		ewarn "You requested ghc bootstrapping, this is usually only used"
+		ewarn "by Gentoo developers to make binary .tbz2 packages."
+
+		[[ -z $(type -P ghc) ]] && \
+			die "Could not find a ghc to bootstrap with."
+	else
+		if ! yet_binary; then
+			eerror "Please try emerging with USE=ghcbootstrap and report build"
+			eerror "sucess or failure to the haskell team (haskell@gentoo.org)"
+			die "No binary available for '${ARCH}' arch yet, USE=ghcbootstrap"
+		fi
+	fi
+}
+
+src_unpack() {
+	# Create the ${S} dir if we're using the binary version
+	use binary && mkdir "${S}"
+
+	# the Solaris and Darwin binaries from ghc (maeder) need to be
+	# unpacked separately, so prevent them from being unpacked
+	local ONLYA=${A}
+	case ${CHOST} in
+		*-darwin* | *-solaris*)  ONLYA=${GHC_P}-src.tar.bz2  ;;
+	esac
+	unpack ${ONLYA}
+}
+
+src_prepare() {
+	ghc_setup_cflags
+
+	if ! use ghcbootstrap && [[ ${CHOST} != *-darwin* && ${CHOST} != *-solaris* ]]; then
+		# Modify the wrapper script from the binary tarball to use GHC_PERSISTENT_FLAGS.
+		# See bug #313635.
+		sed -i -e "s|\"\$topdir\"|\"\$topdir\" ${GHC_PERSISTENT_FLAGS}|" \
+			"${WORKDIR}/usr/bin/$(cross)ghc-${GHC_PV}"
+
+		# allow hardened users use vanilla binary to bootstrap ghc
+		# ghci uses mmap with rwx protection at it implements dynamic
+		# linking on it's own (bug #299709)
+		pax-mark -m "${WORKDIR}/usr/$(get_libdir)/$(cross)${GHC_P}/bin/ghc"
+	fi
+
+	if use binary; then
+		if use prefix; then
+			relocate_ghc "${EPREFIX}"
+		fi
+
+		# Move unpacked files to the expected place
+		mv "${WORKDIR}/usr" "${S}"
+	else
+		if ! use ghcbootstrap; then
+			case ${CHOST} in
+				*-darwin* | *-solaris*)
+				# UPDATE ME for ghc-7
+				mkdir "${WORKDIR}"/ghc-bin-installer || die
+				pushd "${WORKDIR}"/ghc-bin-installer > /dev/null || die
+				use sparc-solaris && unpack ghc-6.10.4-sparc-sun-solaris2.tar.bz2
+				use x86-solaris && unpack ghc-7.0.3-i386-unknown-solaris2.tar.bz2
+				use x86-macos && unpack ghc-7.4.1-i386-apple-darwin.tar.bz2
+				use x64-macos && unpack ghc-7.4.1-x86_64-apple-darwin.tar.bz2
+				popd > /dev/null
+
+				pushd "${WORKDIR}"/ghc-bin-installer/ghc-[67].?*.? > /dev/null || die
+				# fix the binaries so they run, on Solaris we need an
+				# LD_LIBRARY_PATH which has our prefix libdirs, on
+				# Darwin we need to replace the frameworks with our libs
+				# from the prefix fix before installation, because some
+				# of the tools are actually used during configure/make
+				if [[ ${CHOST} == *-solaris* ]] ; then
+					export LD_LIBRARY_PATH="${EPREFIX}/$(get_libdir):${EPREFIX}/usr/$(get_libdir):${LD_LIBRARY_PATH}"
+				elif [[ ${CHOST} == *-darwin* ]] ; then
+					local readline_framework=GNUreadline.framework/GNUreadline
+					local gmp_framework=/opt/local/lib/libgmp.10.dylib
+					local ncurses_file=/opt/local/lib/libncurses.5.dylib
+					for binary in $(scanmacho -BRE MH_EXECUTE -F '%F' .) ; do
+						install_name_tool -change \
+							${readline_framework} \
+							"${EPREFIX}"/lib/libreadline.dylib \
+							${binary} || die
+						install_name_tool -change \
+							${gmp_framework} \
+							"${EPREFIX}"/usr/lib/libgmp.dylib \
+							${binary} || die
+						install_name_tool -change \
+							${ncurses_file} \
+							"${EPREFIX}"/usr/lib/libncurses.dylib \
+							${binary} || die
+					done
+					# we don't do frameworks!
+					sed -i \
+						-e 's/\(frameworks = \)\["GMP"\]/\1[]/g' \
+						-e 's/\(extraLibraries = \)\["m"\]/\1["m","gmp"]/g' \
+						rts/package.conf.in || die
+				fi
+
+				# it is autoconf, but we really don't want to give it too
+				# much arguments, in fact we do the make in-place anyway
+				./configure --prefix="${WORKDIR}"/usr || die
+				make install || die
+				popd > /dev/null
+				;;
+				*)
+				relocate_ghc "${WORKDIR}"
+				;;
+			esac
+		fi
+
+		sed -i -e "s|\"\$topdir\"|\"\$topdir\" ${GHC_PERSISTENT_FLAGS}|" \
+			"${S}/ghc/ghc.wrapper"
+
+		cd "${S}" # otherwise epatch will break
+
+		epatch "${FILESDIR}"/${PN}-7.0.4-CHOST-prefix.patch
+
+		epatch "${FILESDIR}"/${PN}-8.0.1_rc1-cgen-constify.patch
+		epatch "${FILESDIR}"/${PN}-7.8.3-prim-lm.patch
+
+		epatch "${FILESDIR}"/${PN}-8.0.1-limit-jN.patch
+		epatch "${FILESDIR}"/${PN}-8.0.1-ww-args-limit.patch
+		epatch "${FILESDIR}"/${PN}-8.0.1-par-g0-on-A32.patch
+		epatch "${FILESDIR}"/${PN}-8.0.2_rc2-old-sphinx.patch
+
+		if use prefix; then
+			# Make configure find docbook-xsl-stylesheets from Prefix
+			sed -e '/^FP_DIR_DOCBOOK_XSL/s:\[.*\]:['"${EPREFIX}"'/usr/share/sgml/docbook/xsl-stylesheets/]:' \
+				-i utils/haddock/doc/configure.ac || die
+		fi
+
+		bump_libs
+
+		# as we have changed the build system
+		eautoreconf
+	fi
+}
+
+src_configure() {
+	if ! use binary; then
+		# initialize build.mk
+		echo '# Gentoo changes' > mk/build.mk
+
+		# Put docs into the right place, ie /usr/share/doc/ghc-${GHC_PV}
+		echo "docdir = ${EPREFIX}/usr/share/doc/${P}" >> mk/build.mk
+		echo "htmldir = ${EPREFIX}/usr/share/doc/${P}" >> mk/build.mk
+
+		# We also need to use the GHC_FLAGS flags when building ghc itself
+		echo "SRC_HC_OPTS+=${HCFLAGS} ${GHC_FLAGS}" >> mk/build.mk
+		echo "SRC_CC_OPTS+=${CFLAGS}" >> mk/build.mk
+		echo "SRC_LD_OPTS+=${LDFLAGS}" >> mk/build.mk
+		# Speed up initial Cabal bootstrap
+		echo "utils/ghc-cabal_dist_EXTRA_HC_OPTS+=$(ghc-make-args)" >> mk/build.mk
+
+		# We can't depend on haddock except when bootstrapping when we
+		# must build docs and include them into the binary .tbz2 package
+		# app-text/dblatex is not in portage, can not build PDF or PS
+		echo "BUILD_SPHINX_PDF  = NO"  >> mk/build.mk
+		echo "BUILD_SPHINX_HTML = $(usex doc YES NO)" >> mk/build.mk
+
+		# this controls presence on 'xhtml' and 'haddock' in final install
+		echo "HADDOCK_DOCS       = YES" >> mk/build.mk
+
+		# allows overriding build flavours for libraries:
+		# v   - vanilla (static libs)
+		# p   - profiled
+		# dyn - shared libraries
+		# example: GHC_LIBRARY_WAYS="v dyn"
+		if [[ -n ${GHC_LIBRARY_WAYS} ]]; then
+			echo "GhcLibWays=${GHC_LIBRARY_WAYS}" >> mk/build.mk
+		fi
+		echo "BUILD_PROF_LIBS = $(usex profile YES NO)" >> mk/build.mk
+
+		# Get ghc from the unpacked binary .tbz2
+		# except when bootstrapping we just pick ghc up off the path
+		if ! use ghcbootstrap; then
+			export PATH="${WORKDIR}/usr/bin:${PATH}"
+		fi
+
+		echo "INTEGER_LIBRARY = $(usex gmp integer-gmp integer-simple)" >> mk/build.mk
+
+		# don't strip anything. Very useful when stage2 SIGSEGVs on you
+		echo "STRIP_CMD = :" >> mk/build.mk
+
+		local econf_args=()
+
+		# GHC embeds 'gcc' it was built by and uses it later.
+		# Don't allow things like ccache or versioned binary slip.
+		# We use stable thing across gcc upgrades.
+		is_crosscompile || econf_args+=(--with-gcc=${CHOST}-gcc)
+
+		if use ghcmakebinary; then
+			# When building booting libary we are trying to
+			# bundle or restrict most of external depends
+			# with unstable ABI:
+			#  - embed libffi (default GHC behaviour)
+			#  - disable ncurses support for ghci (via haskeline)
+			#    https://bugs.gentoo.org/557478
+			#  - disable ncurses support for ghc-pkg
+			echo "libraries/haskeline_CONFIGURE_OPTS += --flag=-terminfo" >> mk/build.mk
+			echo "utils/ghc-pkg_HC_OPTS += -DBOOTSTRAPPING" >> mk/build.mk
+		else
+			econf_args+=(--with-system-libffi)
+			econf_args+=(--with-ffi-includes=$(pkg-config libffi --cflags-only-I | sed -e 's@^-I@@'))
+		fi
+
+		elog "Final mk/build.mk:"
+		cat mk/build.mk || die
+
+		econf ${econf_args[@]} --enable-bootstrap-with-devel-snapshot
+
+		if [[ ${PV} == *9999* ]]; then
+			GHC_PV="$(grep 'S\[\"PACKAGE_VERSION\"\]' config.status | sed -e 's@^.*=\"\(.*\)\"@\1@')"
+			GHC_P=${PN}-${GHC_PV}
+		fi
+	fi # ! use binary
+}
+
+src_compile() {
+	if ! use binary; then
+		# 1. build/pax-mark compiler binary first
+		emake ghc/stage2/build/tmp/ghc-stage2
+		pax-mark -m ghc/stage2/build/tmp/ghc-stage2
+		# 2. build/pax-mark haddock using ghc-stage2
+		emake utils/haddock/dist/build/tmp/haddock
+		pax-mark -m utils/haddock/dist/build/tmp/haddock
+		# 3. and then all the rest
+		emake all
+	fi # ! use binary
+}
+
+src_install() {
+	if use binary; then
+		use prefix && mkdir -p "${ED}"
+		mv "${S}/usr" "${ED}"
+	else
+
+		emake install DESTDIR="${D}"
+		dodoc "distrib/README" "ANNOUNCE" "LICENSE" "VERSION"
+
+		# rename ghc-shipped files to avoid collision
+		# of external packages. Motivating example:
+		#  user had installed:
+		#      dev-lang/ghc-7.8.4-r0 (with transformers-0.3.0.0)
+		#      dev-haskell/transformers-0.4.2.0
+		#  then user tried to update to
+		#      dev-lang/ghc-7.8.4-r1 (with transformers-0.4.2.0)
+		#  this will lead to single .conf file collision.
+		local shipped_conf renamed_conf
+		local package_confdir="${ED}/usr/$(get_libdir)/$(cross)${GHC_P}/package.conf.d"
+		for shipped_conf in "${package_confdir}"/*.conf; do
+			# rename 'pkg-ver-id.conf' to 'pkg-ver-id-gentoo-${PF}.conf'
+			renamed_conf=${shipped_conf%.conf}-gentoo-${PF}.conf
+			mv "${shipped_conf}" "${renamed_conf}" || die
+		done
+
+		# remove link, but leave 'haddock-${GHC_P}'
+		rm -f "${ED}"/usr/bin/$(cross)haddock
+
+		if [[ ! -f "${S}/VERSION" ]]; then
+			echo "${GHC_PV}" > "${S}/VERSION" \
+				|| die "Could not create file ${S}/VERSION"
+		fi
+		if ! is_crosscompile; then
+			newbashcomp "${FILESDIR}"/ghc-bash-completion ghc-pkg
+			newbashcomp utils/completion/ghc.bash         ghc
+		fi
+	fi
+
+	# path to the package.cache
+	local package_confdir="${ED}/usr/$(get_libdir)/$(cross)${GHC_P}/package.conf.d"
+	PKGCACHE="${package_confdir}"/package.cache
+	# copy the package.conf.d, including timestamp, save it so we can help
+	# users that have a broken package.conf.d
+	cp -pR "${package_confdir}"{,.initial} || die "failed to backup intial package.conf.d"
+
+	# copy the package.conf, including timestamp, save it so we later can put it
+	# back before uninstalling, or when upgrading.
+	cp -p "${PKGCACHE}"{,.shipped} \
+		|| die "failed to copy package.conf.d/package.cache"
+}
+
+pkg_preinst() {
+	# have we got an earlier version of ghc installed?
+	if has_version "<${CATEGORY}/${PF}"; then
+		haskell_updater_warn="1"
+	fi
+}
+
+pkg_postinst() {
+	ghc-reregister
+
+	# path to the package.cache
+	PKGCACHE="${EROOT}/usr/$(get_libdir)/$(cross)${GHC_P}/package.conf.d/package.cache"
+
+	# give the cache a new timestamp, it must be as recent as
+	# the package.conf.d directory.
+	touch "${PKGCACHE}"
+
+	if [[ "${haskell_updater_warn}" == "1" ]]; then
+		ewarn
+		ewarn "\e[1;31m************************************************************************\e[0m"
+		ewarn
+		ewarn "You have just upgraded from an older version of GHC."
+		ewarn "You may have to run"
+		ewarn "      'haskell-updater'"
+		ewarn "to rebuild all ghc-based Haskell libraries."
+		ewarn
+		ewarn "\e[1;31m************************************************************************\e[0m"
+		ewarn
+	fi
+}
+
+pkg_prerm() {
+	PKGCACHE="${EROOT}/usr/$(get_libdir)/$(cross)${GHC_P}/package.conf.d/package.cache"
+	rm -rf "${PKGCACHE}"
+
+	cp -p "${PKGCACHE}"{.shipped,}
+}
+
+pkg_postrm() {
+	ghc-package_pkg_postrm
+}