Version bump. With x86 and amd64 binaries for now.

Package-Manager: portage-2.2.0_alpha177_p3/cvs/Linux x86_64
Manifest-Sign-Key: 0x611FF3AA

3 files changed, 722 insertions, 16 deletions

diff --git a/dev-lang/ghc/ChangeLog b/dev-lang/ghc/ChangeLog
index 2aa9ded780f8..32a2a4a8199b 100644
--- a/dev-lang/ghc/ChangeLog
+++ b/dev-lang/ghc/ChangeLog
@@ -1,6 +1,11 @@
 # ChangeLog for dev-lang/ghc
 # Copyright 1999-2013 Gentoo Foundation; Distributed under the GPL v2
-# $Header: /var/cvsroot/gentoo-x86/dev-lang/ghc/ChangeLog,v 1.242 2013/04/25 18:47:56 ago Exp $
+# $Header: /var/cvsroot/gentoo-x86/dev-lang/ghc/ChangeLog,v 1.243 2013/06/01 14:16:25 slyfox Exp $
+
+*ghc-7.6.3 (01 Jun 2013)
+
+  01 Jun 2013; Sergei Trofimovich <slyfox@gentoo.org> +ghc-7.6.3.ebuild:
+  Version bump. With x86 and amd64 binaries for now.
 
   25 Apr 2013; Agostino Sarubbo <ago@gentoo.org> ghc-7.4.2.ebuild:
   Stable for sparc, wrt bug #457780
diff --git a/dev-lang/ghc/Manifest b/dev-lang/ghc/Manifest
index 761296b09aed..591f41157cbc 100644
--- a/dev-lang/ghc/Manifest
+++ b/dev-lang/ghc/Manifest
@@ -1,5 +1,5 @@
 -----BEGIN PGP SIGNED MESSAGE-----
-Hash: SHA512
+Hash: SHA256
 
 AUX ghc-6.10.4-autoconf.patch 2010 SHA256 125afd89af86b32bcf88dd97860993dc6f7ef9920a3f3dfb577897837fbcf4fe SHA512 c51552c63bba8a13d6ef379c6f1b563aebcacd4fa329d35ae29ca1ebbe99472e8054d12908f5f810494e7c6c9957954f1bddaa3b45696d0fa4712ff76c710df0 WHIRLPOOL deaa24a45ca6b9594a3b06ec0b1cd403c8f774c9b73f6f6433c1fbb03fff538d189da9f40b45ae602ed53edb9b22837915cb7b8ba9c0e1a55d64dffc8779e929
 AUX ghc-6.10.4-disable-strip.patch 782 SHA256 3d61160acc28afed2c2fd0a37c460b57368d81d5a18c8fcd07867cfdc8a190a6 SHA512 0206d9f2143df00ad0461e32a79b24ab89f3eb75f11d65e2885df063127c8e0ca1bdb73b66316abf1ad4b0b44654a7a51e34e3030508f91e701bba3fd336bf97 WHIRLPOOL f1f51c320000bca4299aa66389a19914e8e6bb4ab0bcc775acd92740cd8cd669463036fc649d5585f68277b609851aa4d750e9731b4b879cd5fad848fa630532
@@ -53,6 +53,7 @@ DIST ghc-7.4.1-src.tar.bz2 25272609 SHA256 721c09a49e519b7459b67b451b5103252ba38
 DIST ghc-7.4.1-x86_64-apple-darwin.tar.bz2 148037332 SHA256 52eb17e513f9eb2e221b2183ebe6e8aa4358275128ea416788d2deb7e0a751bd
 DIST ghc-7.4.2-src.tar.bz2 25836446 SHA256 f2ee1289a33cc70539287129841acc7eaf16112bb60c59b5a6ee91887bfd836d SHA512 5a3d06a36702fa7e337b482c9de92ce1f84a68f18d8560bcc11f3617d6d46f93167fee27e786de6483a9ef0eab3b1ac6909a71dd53908d36156df4e465075050 WHIRLPOOL 61865eed2bf92728e7c4c4a0c48be44081bf728cfd824760d643e2fad838d96c19e173052d3aac073e0795b5efa3720ba5ddf13cca1ec7952b7524bbe1f204bc
 DIST ghc-7.6.2-src.tar.bz2 110778081 SHA256 d5f45184abeacf7e9c6b4f63c7101a5c1d7b4fe9007901159e2287ecf38de533 SHA512 2e6e54f509e564f3713ea15dfefb16a84a467f8044c692ad2647c05b641e1ccb4125b9b63bbf711be1054d7ef56612186d2b9cd88ba4127fe01eec225152e4cf WHIRLPOOL 78724187c0f7579c3f39f257620d3046711f20fe07c540b6b70cf1b0b87bb8476d2382835895b5770865faaac291de05be88e2708fd0c1956ad7bc132d558b9c
+DIST ghc-7.6.3-src.tar.bz2 110763823 SHA256 bd43823d31f6b5d0b2ca7b74151a8f98336ab0800be85f45bb591c9c26aac998 SHA512 ac86f18b4feeb0bdc9e867261600b210caf62740d73ae657259bbe8149b8c2c4f5a73d09d74d944d4e50f85cc87503485365f0a0ae65befe8d2b6844e5e1253a WHIRLPOOL 0fe1f5f2987699067494559e6a679d28f027eee8fb2a00c683161dbce5443b1faeebfb51572209b75231cee24c7f0c929cabbc82a93f70e16d05e351fdfe2eaf
 DIST ghc-bin-6.12.3-alpha-haddock.tbz2 106307940 SHA256 22951ccbaa2e77f811c634fa95492451f28f8b79e5cfe0297890ce1dd9d525ab SHA512 47b124cb2b745ffa6471dd75b9b922170cd275d837093f320116a842cc2ed4e6f215128fe7269bbe5f85b34239fe46bac697d7210c2f5df97b67c5629ea30c94 WHIRLPOOL 2f26c8c046e779ed63f86fdfcf2cb4815f5f0ea08b0c6c98668909a7a3bcca3c6fa2dac390d3bd066e197093227086cbe4bd5c35044a23d344e591b5d5a1cfc1
 DIST ghc-bin-6.12.3-amd64.tbz2 82390661 SHA256 6a1c9978c4ad19bb98f70b900afa799f16cfd3e159bb6d51437c264e35f4d6cc SHA512 ae883f94621fcf0ffe8b57954e403db6812769bbeee92e031be49fc9cc2087c7700bb6a36c6fdd170936c2fea9024d2400db04db94c530841ab6662be34227e8 WHIRLPOOL ffbb50018216af9cc84d2cc04a39646dd47f70e1451bbaf700495864edddbbf729c61c3a020dde472e27236b19151b3373fd1b1735da5d3d9f68c63d9e3ea4ed
 DIST ghc-bin-6.12.3-ia64-haddock.tbz2 113756002 SHA256 135c60f870badec5e10add87061d0d9c85276e182ae448ab52c6f9f7ebe6eb2e SHA512 0e789ff5af719106e9eac030c477109a928f04facfd9b7da0c55a25465cd5c92c409d08838f75206939943df6c028e302854da368eefe17fd704c88bc5e83fe4 WHIRLPOOL 7e6ad1b44f28724c4cbf8c618aa04202e61dddaf2f50a71de42161d32b78573fc530aeffb1cb4b550e2141690515487fd99e8c5e01d5c79775ffb771ee5cefe9
@@ -84,28 +85,21 @@ DIST ghc-bin-7.4.2-x86-stable-glibc.tbz2 92394017 SHA256 2c42257a60aec03ae622c1a
 DIST ghc-bin-7.6.2-amd64.tbz2 94464851 SHA256 82ba625dc5ff58db6e085155b2c1d708c490ac6ac84dba85763b74ec1cabda13 SHA512 b6ef3ed764a3a325dc2cbcfb5fa2f416d240ca70f33791bc6535b2d3416cfa281ad6c343b72c8ffd59be92cfcc3c5dcddb1a7c6d57128ab16b89d341880b022f WHIRLPOOL a5412e0df5105e1c1de0af71a5bb0671d27c869bd74a271b07bf4a8985c30f8e6aff69aa89e7801b2c49623f4cb0b9ec34ad3eb96af5d9bc2de106652b7bf4a0
 DIST ghc-bin-7.6.2-ia64.tbz2 158914515 SHA256 fac170050bfeb7c20ac62525bf169ad252d0598f2790db2027b04c4c70df58f1 SHA512 a79fa35aadf65ca60d1b0ae98bdd9151c3cce13eac1fa6c525cd29c5ea2359da8ff78549a138db876bceaa4ffcdbb621d87cde053be0fa282f8891251eb78e21 WHIRLPOOL 7753255c9f4a7b5fb7434157df7821bce3c3c2a36e8a781e5e6939aeb0c5721ce62d4710ebd4c377393dea3c51ed8300a3f8c8adb4d0c16ca8c7a8ce86f8e853
 DIST ghc-bin-7.6.2-x86.tbz2 93746314 SHA256 d5d50ae425cfa2cb7e476e0829fae61623fc6d728413ffa27cb7ecfc925633f1 SHA512 cd56331b8855539671e1b9463960413c84665da3aa7d6e7fcd1cf4425f003582f524d3385c97e7fe9707989712bf487cd7cc75a1096918abd057cc6021badde5 WHIRLPOOL d5dffb0e970c16f168d5d6b5057b42afa8704a156a5521eca01aa522248cd9cdb8fa29e0ae5c368e11fbd87c39b89569c4ccbde7d8ba1660801cf593f328266c
+DIST ghc-bin-7.6.3-amd64.tbz2 94441516 SHA256 3ef747e96a40c9d5021e88b8afee0a97838c27b00619d9187783d95279c31779 SHA512 89f6c693d83d6309a0e44fcc68e30279c858adb0a0ea9317dd168b2e632c22a8507da78ed953523f5d7156db98e06c6df56d6edc19c0c50b3941ea578263dc64 WHIRLPOOL 891dfbfc9d88fa579b6a837651f7cc6d9aecef8b8752ec7bcebbdfef2a6d8929d0edaceff27ec61d6160d36d1b0e8406b7829a04a858ed64210b5c57b9c98940
+DIST ghc-bin-7.6.3-x86.tbz2 93718672 SHA256 a55024f66a048437fcd6ef0f33cdb994a43628998a2f0fe4d094cc9ba83d1615 SHA512 624f2a3238dee15853018d45632d1363e42d34099a77e5e9ce5c8da976cb4c33578144f7c39dbf25ee68c17d8d42910db2347186849eeeda6bc20053ce2be990 WHIRLPOOL bc646fc19906b59416358fb7558b6e2c3f7ad069c2fcf443be36b621894cfcecb0844acf5b5f9c383e034dfff3e24d312a7da0d7a629836134ec5dc1ecd6f139
 EBUILD ghc-6.12.3-r2.ebuild 20570 SHA256 d1bac3b88691bc27eefde9a04580a97e76e41d11b30c32b7f0dc92de4a367613 SHA512 0946a8205db0f1f139bff75ea52b77b3e1c9ce2dc42b5a49c042a653853c401543f1d829397ed7c59a957e9919feec7b171c92aaa166ee109fa8540c53a42aea WHIRLPOOL 96f57ace2e729748827d411c4fb1a7b6638bb04e1797a4c14d548ba731b7dea7ab959daaf5f03a6a5dc9ce304fd597266b6ea5522a518c2e661fa96a9c4e6ef3
 EBUILD ghc-7.0.4.ebuild 20030 SHA256 d9f8198f0c214bcd6b5c75380b401d73d8b153b772c36aa18cbc0b6a4898a507 SHA512 d4a9717c45bd6f7b009ee82508c677e06c8a99c3be16cca136518e6ec77aa9a95f4a13f833aab629995b7185ac5a20066849d1284a639ab3d79934e406f48e7e WHIRLPOOL b2d7e20da2e94463b69e8183a28e4f96d928757ed07cfe2cfd432d46353744c70e27f789307f58d8e62610950d8f89041aea782c6e2c63a70be144267be46bd2
 EBUILD ghc-7.4.1-r1.ebuild 21255 SHA256 bd888b9945bed390b0c672dca385360df9326d8424386a68d658b6b8a69dbc33 SHA512 d3eefc00306e704dc5ee306edd2a411413ac80873ab76224d22d17953e97c90cd3ca1b42dae30042fdf9de4a70ea112cf7110f03e616b88b520ae96ee3969797 WHIRLPOOL ec21fd8b4f53f7edc6911bade955c57f01adbce6ba714453712c27bb1babd750c5427618022e78948f9407b651de3843f08378d915b44bdfc1828946bcf54f30
 EBUILD ghc-7.4.1.ebuild 20450 SHA256 8a0a3b104ddbb23c2de1128b60f194108739330d35bafc4c8349f62113a759c9 SHA512 cc9d7089457d89f405e35fd11dc991d8d3f8494b8bbb871bbbddab32c0bee2f12eb5f679b494053947228fd11d07c41a0d876f33eab4d7138feb4626b0293b1a WHIRLPOOL bff6571901c923e161667aaf9c63f027e33967372e4d86711774c33dfcb26adf0f75a9995a9dd20ce0996bf984ed43c4825a395a65cba7a615aadce86bbaa5da
 EBUILD ghc-7.4.2.ebuild 22001 SHA256 15b549a62e8d7ca1d47602cb3f528b5aa30cfc5a809827d7b4c5b79cdcd9d5bf SHA512 d0a5340fea4ba407f44114f985619c966f2d2a1887f8030ef1dd62cfd8920e486bbc6003d7f466280b314f34005ec75154b590e6071d1fd5165f68326bb5fdce WHIRLPOOL 3baccfff4a0fcf09e39e37d2c7f233c739007ba1c6dba746418df2fc3b75e9b2a1530d3dc12e831bfd2cccb76eb76f7932bdeef252046daf7e16007071cebc6c
 EBUILD ghc-7.6.2.ebuild 25247 SHA256 5a4b1fed20453edf0e09af3c9c5eac979e76b99b64e60d94e5704cbc4949440c SHA512 d22b5e8e67f4fb4003d2b008c21bab276bf872d7f806745132c957bf0227412d783953a16dbd5697fc28f0f83f3a7c9e55a59cd2825de21ce07e937bf4580577 WHIRLPOOL 994841dbdfdb212ad5a8594c62c7c5679ff58bfb421bde5567f0f025ee4fc0fdc5846262d40bb4506f5665d26278dca8e5a7ba3c6325809c665198233c847b7b
-MISC ChangeLog 43911 SHA256 fc1d79f5968c2232935f3848b8e92f771980c1eb40f7c89bb10bde9994e6584c SHA512 a91151424de56b614d066488eb59969d4a3ca1b718b956e5c64fbc464284a052c1014f65e82f88da180efb086620202228267889b8573a5888b8dbc6c71a07c1 WHIRLPOOL 566356ebe44e1075bc2e2e50e3f5ff277ed06ef96f5a331ebb301b4fd23a6ff31b1f457c47c1361a58c98316ab5bb35351c3879366efe04fc58fd45da07a9565
+EBUILD ghc-7.6.3.ebuild 25151 SHA256 4b4011e3ccf3b6536869282f3ef354b505717a2dff9389a01d6b10390b4746be SHA512 22c9c9f0c543d356587b3db92f56a977dbf5307c41b18ab5828a2bf11d3287d8a1fc7adf78ee70011cea76840bd90d9c6a671d4a66040c6d25c8cce91810b724 WHIRLPOOL 841ed92986eed308a847198feea762d4e066fa86b5c3a5363513daea338e82c7cb00eb3a59b59c08f609595c92dcbb7a5d78577d5000c53bc7c767401f2abb21
+MISC ChangeLog 44067 SHA256 2f74f6bb3ee007e66e65ea3825ec9f43b91603fa02c9946bc2279468f3a7c38d SHA512 5f83f6fa66fc98bdac8aa7251df06f86a7d4ae97635bc846422d58e7916365a35ae9f1071df15324505245529a74e6c83b8d802bab2f88db807e22fd77874fb5 WHIRLPOOL bbe4020b432ae0f4029baeeb4727491b48f1d40343cbf5f79a91ec33bf00ee110a91bd01bdc252f6174b97c68e4a6d9c310e758b3628bcc29080ac9eb2f2e9cc
 MISC metadata.xml 626 SHA256 ef2d6b7e65453f0a6df403c25925250c8308741aa82b5991cfe18f5c1d8ab406 SHA512 9647b53b295e2f586c46450c068e3d0b5ebf2790b091121df7e177e7155f8ef4124df1fedc805465c24d9d32703398e1761de407b5bc494ba05fb76de2c7069a WHIRLPOOL 55afff88759648d2c47293046ddc2a10f92e2986bfb2d83d31046b824c6bab432038fe3298d29be434bfd1f13b368e5cc9b99eebc295443d53400e0eca4070b7
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.19 (GNU/Linux)
 
-iQIcBAEBCgAGBQJReXnAAAoJELp701BxlEWfP/QQAK5u2jInjRBWOPj85hfeZBxQ
-o38FPUT1c7Z89yrUDktvs88rEmwg3U/YpABMN+W1cYvR7Q8HyGB6q6P1Sak7efcG
-M46VpsWhA7fOqDn33c1ip5zLB5WTLFsHL6GbLQagvKXjtzJwQ3ToIXtehsWUlz67
-mJAW1yf72TnI1ELnXm8Ez908OCGfM9jen1WolHrCWjoaKNCugOnP9giRkuI8Fc/V
-+s3SBT/IpvvY4ld8xZ50D5/dSkD8pFfHyN61b2zXGO0Ve97aPGkBcUCDzvr+M+A3
-hvbbGAO2jewiy6w0BbXfBTNlds3nrXwsUGQZcCYumXaWpDrEyJ0j8w/N6dMvjXYS
-0nfyt7ckJpL/9V0L7ug69wNKzL7YlNDtvIISAKfEHAn7qlBswl9WxH/vcEARfxi4
-bwFoJeGa+YQmOaQyo/maNpA5SZzgtd8MVDd+xdbyhCdDqDKXHt6x1Vp9ZjnrTh8H
-LsnXxo1tE8AucVNE+Cy2CsI4U1gwK4NqstZlrqqw9p7u+Qnkh1+9mX9odsd6qFaB
-LW3yB3BVnUbo0qYlODATL/TGvwwnO7ZMkX1Z6ZBN6/gxcUkjx++xcPLEwb9Imo7s
-d+KMLTCqo93xXxzNhpSqWCoJ+wAU76ts9nHTY/SEVV4N+Llb0eL3iuaeAvTmXYnH
-nza2KvgAY4w91cby5S5k
-=Cu1y
+iEYEAREIAAYFAlGqAewACgkQcaHudmEf86r72QCfafWPR3O8HPWMHXAAkCjHX+WU
+5S0An2G3UjOqbWgneqR/4Pye+npiGXqF
+=0K7c
 -----END PGP SIGNATURE-----
diff --git a/dev-lang/ghc/ghc-7.6.3.ebuild b/dev-lang/ghc/ghc-7.6.3.ebuild
new file mode 100644
index 000000000000..7dfc47445cc8
--- /dev/null
+++ b/dev-lang/ghc/ghc-7.6.3.ebuild
@@ -0,0 +1,707 @@
+# Copyright 1999-2013 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/dev-lang/ghc/ghc-7.6.3.ebuild,v 1.1 2013/06/01 14:16:25 slyfox Exp $
+
+# Brief explanation of the bootstrap logic:
+#
+# Previous ghc ebuilds have been split into two: ghc and ghc-bin,
+# where ghc-bin was primarily used for bootstrapping purposes.
+# From now on, these two ebuilds have been combined, with the
+# binary USE flag used to determine whether or not the pre-built
+# binary package should be emerged or whether ghc should be compiled
+# from source.  If the latter, then the relevant ghc-bin for the
+# arch in question will be used in the working directory to compile
+# ghc from source.
+#
+# This solution has the advantage of allowing us to retain the one
+# ebuild for both packages, and thus phase out virtual/ghc.
+
+# Note to users of hardened gcc-3.x:
+#
+# If you emerge ghc with hardened gcc it should work fine (because we
+# turn off the hardened features that would otherwise break ghc).
+# However, emerging ghc while using a vanilla gcc and then switching to
+# hardened gcc (using gcc-config) will leave you with a broken ghc. To
+# fix it you would need to either switch back to vanilla gcc or re-emerge
+# ghc (or ghc-bin). Note that also if you are using hardened gcc-3.x and
+# you switch to gcc-4.x that this will also break ghc and you'll need to
+# re-emerge ghc (or ghc-bin). People using vanilla gcc can switch between
+# gcc-3.x and 4.x with no problems.
+
+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 base autotools bash-completion-r1 eutils flag-o-matic multilib toolchain-funcs ghc-package versionator pax-utils
+
+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.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 "${ARCH}" in
+		#alpha) return 0 ;;
+		#arm)
+		#	ewarn "ARM binary is built on armv5tel-eabi toolchain. Use with caution."
+		#	return 0
+		#;;
+		amd64) return 0 ;;
+		#ia64) return 0 ;;
+		#ppc) return 0 ;;
+		#ppc64) return 0 ;;
+		#sparc) return 0 ;;
+		x86) return 0 ;;
+		*) return 1 ;;
+	esac
+}
+
+SRC_URI="!binary? ( http://www.haskell.org/ghc/dist/${PV}/${P}-src.tar.bz2 )"
+[[ -n $arch_binaries ]] && SRC_URI+=" !ghcbootstrap? ( $arch_binaries )"
+LICENSE="BSD"
+SLOT="0/${PV}"
+KEYWORDS="~amd64 ~x86 ~amd64-linux ~x86-linux ~ppc-macos ~x86-macos ~sparc-solaris ~x86-solaris"
+IUSE="doc ghcbootstrap ghcmakebinary +gmp llvm"
+IUSE+=" binary" # don't forget about me later!
+IUSE+=" elibc_glibc" # system stuff
+
+RDEPEND="
+	!kernel_Darwin? ( >=sys-devel/gcc-2.95.3 )
+	kernel_linux? ( >=sys-devel/binutils-2.17 )
+	kernel_SunOS? ( >=sys-devel/binutils-2.17 )
+	>=dev-lang/perl-5.6.1
+	>=dev-libs/gmp-5
+	virtual/libffi
+	!<dev-haskell/haddock-2.4.2
+	sys-libs/ncurses[unicode]"
+# earlier versions than 2.4.2 of haddock only works with older ghc releases
+
+# force dependency on >=gmp-5, even if >=gmp-4.1 would be enough. this is due to
+# that we want the binaries to use the latest versioun available, and not to be
+# built against gmp-4
+
+# similar for glibc. we have bootstrapped binaries against glibc-2.14
+DEPEND="${RDEPEND}
+	ghcbootstrap? (		>=dev-haskell/alex-2.3
+						>=dev-haskell/happy-1.18
+				doc? (	app-text/docbook-xml-dtd:4.2
+				app-text/docbook-xml-dtd:4.5
+				app-text/docbook-xsl-stylesheets
+				>=dev-libs/libxslt-1.1.2 ) )
+	!ghcbootstrap? ( !prefix? ( elibc_glibc? ( >=sys-libs/glibc-2.15 ) ) )"
+
+PDEPEND="!ghcbootstrap? ( =app-admin/haskell-updater-1.2* )"
+PDEPEND="
+	${PDEPEND}
+	llvm? ( sys-devel/llvm )"
+
+# ia64 fails to return from STG GMP primitives (stage2 always SIGSEGVs)
+REQUIRED_USE="ia64? ( !gmp )"
+
+is_crosscompile() {
+	[[ ${CHOST} != ${CTARGET} ]]
+}
+
+append-ghc-cflags() {
+	local flag compile assemble link
+	for flag in $*; do
+		case ${flag} in
+			compile)	compile="yes";;
+			assemble)	assemble="yes";;
+			link)		link="yes";;
+			*)
+				[[ ${compile}  ]] && GHC_FLAGS="${GHC_FLAGS} -optc${flag}" CFLAGS="${CFLAGS} ${flag}"
+				[[ ${assemble} ]] && GHC_FLAGS="${GHC_FLAGS} -opta${flag}" CFLAGS="${CFLAGS} ${flag}"
+				[[ ${link}     ]] && GHC_FLAGS="${GHC_FLAGS} -optl${flag}" FILTERED_LDFLAGS="${FILTERED_LDFLAGS} ${flag}";;
+		esac
+	done
+}
+
+ghc_setup_cflags() {
+	if is_crosscompile; then
+		export CFLAGS=${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}"
+		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
+
+	GHC_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
+
+	FILTERED_LDFLAGS=""
+	for flag in ${LDFLAGS}; do
+		case ${flag} in
+			# Pass the canary. we don't quite respect LDFLAGS, but we have an excuse!
+			"-Wl,--hash-style="*) append-ghc-cflags link ${flag};;
+
+			# Ignore all other flags
+		esac
+	done
+
+	# hardened-gcc needs to be disabled, because the mangler doesn't accept
+	# its output.
+	gcc-specs-pie && append-ghc-cflags compile link	-nopie
+	gcc-specs-ssp && append-ghc-cflags 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 compile -mminimal-toc
+	# fix the similar issue as ppc64 TOC on ia64. ia64 has limited size of small data
+	# currently ghc fails to build haddock
+	# http://osdir.com/ml/gnu.binutils.bugs/2004-10/msg00050.html
+	use ia64 && append-ghc-cflags compile -G0 -Os
+
+	# Unfortunately driver/split/ghc-split.lprl is dumb
+	# enough to preserve stack marking for each split object
+	# and it flags stack marking violation:
+	# * !WX --- --- usr/lib64/ghc-7.4.1/base-4.5.0.0/libHSbase-4.5.0.0.a:Fingerprint__1.o
+	# * !WX --- --- usr/lib64/ghc-7.4.1/base-4.5.0.0/libHSbase-4.5.0.0.a:Fingerprint__2.o
+	# * !WX --- --- usr/lib64/ghc-7.4.1/base-4.5.0.0/libHSbase-4.5.0.0.a:Fingerprint__3.o
+	case $($(tc-getAS) -v 2>&1 </dev/null) in
+		*"GNU Binutils"*) # GNU ld
+			append-ghc-cflags compile assemble -Wa,--noexecstack
+			;;
+	esac
+}
+
+# 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=$1
+
+	# backup original script to use it later after relocation
+	local gp_back="${T}/ghc-pkg-${PV}-orig"
+	cp "${WORKDIR}/usr/bin/ghc-pkg-${PV}" "$gp_back" || die "unable to backup ghc-pkg wrapper"
+
+	# Relocate from /usr to ${EPREFIX}/usr
+	relocate_path "/usr" "${to}/usr" \
+		"${WORKDIR}/usr/bin/ghc-${PV}" \
+		"${WORKDIR}/usr/bin/ghci-${PV}" \
+		"${WORKDIR}/usr/bin/ghc-pkg-${PV}" \
+		"${WORKDIR}/usr/bin/hsc2hs" \
+		"${WORKDIR}/usr/$(get_libdir)/${P}/package.conf.d/"*
+
+	# this one we will use to regenerate cache
+	# so it shoult 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/ghc-${PV}" \
+			"${WORKDIR}/usr/bin/ghci-${PV}" \
+			"${WORKDIR}/usr/bin/ghc-pkg-${PV}" \
+			"$gp_back" \
+			"${WORKDIR}/usr/bin/hsc2hs" \
+			|| die "Adding LD_LIBRARY_PATH for wrappers failed"
+	fi
+
+	# regenerate the binary package cache
+	"$gp_back" recache || die "failed to update cache after relocation"
+	rm "$gp_back"
+}
+
+pkg_setup() {
+	if use ghcbootstrap; then
+		ewarn "You requested ghc bootstrapping, this is usually only used"
+		ewarn "by Gentoo developers to make binary .tbz2 packages for"
+		ewarn "use with the ghc ebuild's USE=\"binary\" feature."
+		use binary && \
+			die "USE=\"ghcbootstrap binary\" is not a valid combination."
+		[[ -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 ${CHOST} in
+		*-darwin* | *-solaris*)  ONLYA=${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_FLAGS.
+		# See bug #313635.
+		sed -i -e "s|\"\$topdir\"|\"\$topdir\" ${GHC_FLAGS}|" \
+			"${WORKDIR}/usr/bin/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/$(get_libdir)/${P}/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\" ${GHC_FLAGS}|" \
+			"${S}/ghc/ghc.wrapper"
+
+		cd "${S}" # otherwise epatch will break
+
+		epatch "${FILESDIR}/ghc-7.0.4-CHOST-prefix.patch"
+
+		# epatch "${FILESDIR}"/${PN}-7.0.4-darwin8.patch
+		# failed to apply. FIXME
+		#epatch "${FILESDIR}"/${PN}-6.12.3-mach-o-relocation-limit.patch
+
+		# epatch "${FILESDIR}"/${PN}-7.4-rc2-macos-prefix-respect-gcc.patch
+		# epatch "${FILESDIR}"/${PN}-7.2.1-freebsd-CHOST.patch
+
+		we_want_libffi_workaround() {
+			use ghcmakebinary && return 1
+
+			# pick only registerised arches
+			# http://bugs.gentoo.org/463814
+			use amd64 && return 0
+			use x86 && return 0
+			return 1
+		}
+		# one mode external depend with unstable ABI be careful to stash it
+		# avoid external libffi runtime when we build binaries
+		we_want_libffi_workaround && epatch "${FILESDIR}"/${PN}-7.5.20120505-system-libffi.patch
+
+		epatch "${FILESDIR}"/${PN}-7.4.1-ticket-7339-fix-unaligned-unreg.patch
+		epatch "${FILESDIR}"/${PN}-7.6.2-integer-simple-div-mod.patch
+
+		if use prefix; then
+			# Make configure find docbook-xsl-stylesheets from Prefix
+			sed -e '/^FP_DIR_DOCBOOK_XSL/s:\[.*\]:['"${EPREFIX}"'/usr/share/sgml/docbook/xsl-stylesheets/]:' \
+				-i utils/haddock/doc/configure.ac || die
+		fi
+
+		# as we have changed the build system
+		eautoreconf
+	fi
+}
+
+src_configure() {
+	GHC_PV=${PV} # overrided in live ebuilds
+
+	if ! use binary; then
+		# initialize build.mk
+		echo '# Gentoo changes' > mk/build.mk
+
+		# Put docs into the right place, ie /usr/share/doc/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+=${GHC_FLAGS}" >> mk/build.mk
+		echo "SRC_CC_OPTS+=${CFLAGS}" >> mk/build.mk
+		echo "SRC_LD_OPTS+=${FILTERED_LDFLAGS}" >> 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
+		if use ghcbootstrap && use doc; then
+			echo "BUILD_DOCBOOK_PDF  = NO"  >> mk/build.mk
+			echo "BUILD_DOCBOOK_PS   = NO"  >> mk/build.mk
+			echo "BUILD_DOCBOOK_HTML = YES" >> mk/build.mk
+			if is_crosscompile; then
+				# TODO this is a workaround for this build error with the live ebuild with haddock:
+				# make[1]: *** No rule to make target `compiler/stage2/build/Module.hi',
+				# needed by `utils/haddock/dist/build/Main.o'.  Stop.
+				echo "HADDOCK_DOCS       = NO" >> mk/build.mk
+			else
+				echo "HADDOCK_DOCS       = YES" >> mk/build.mk
+			fi
+		else
+			echo "BUILD_DOCBOOK_PDF  = NO" >> mk/build.mk
+			echo "BUILD_DOCBOOK_PS   = NO" >> mk/build.mk
+			echo "BUILD_DOCBOOK_HTML = NO" >> mk/build.mk
+			echo "HADDOCK_DOCS       = NO" >> mk/build.mk
+		fi
+
+		# circumvent a very strange bug that seems related with ghc producing
+		# too much output while being filtered through tee (e.g. due to
+		# portage logging) reported as bug #111183
+		echo "SRC_HC_OPTS+=-w" >> mk/build.mk
+
+		# some arches do not support ELF parsing for ghci module loading
+		# PPC64: never worked (should be easy to implement)
+		# alpha: never worked
+		# arm: http://hackage.haskell.org/trac/ghc/changeset/27302c9094909e04eb73f200d52d5e9370c34a8a
+		if use alpha || use ppc64; then
+			echo "GhcWithInterpreter=NO" >> mk/build.mk
+		fi
+
+		# we have to tell it to build unregisterised on some arches
+		# ppc64: EvilMangler currently does not understand some TOCs
+		# ia64: EvilMangler bitrot
+		# set GHC_IS_UNREG if you like to build slow unregisterised
+		# host compiler. Handy if you plan to user resulting
+		# host compiler as a booting compiler for crosscompiler
+		# which can work only in unregisterised mode.
+		if use alpha || use ia64 || use ppc64 || [[ -n ${GHC_IS_UNREG} ]]; then
+			echo "GhcUnregisterised=YES" >> mk/build.mk
+			echo "GhcWithNativeCodeGen=NO" >> mk/build.mk
+			echo "SplitObjs=NO" >> mk/build.mk
+			echo "GhcRTSWays := debug" >> mk/build.mk
+			echo "GhcNotThreaded=YES" >> mk/build.mk
+		fi
+
+		# arm: no EvilMangler support, no NCG support
+		if use arm; then
+			echo "GhcUnregisterised=YES" >> mk/build.mk
+			echo "GhcWithNativeCodeGen=NO" >> mk/build.mk
+		fi
+
+		# Have "ld -r --relax" problem with split-objs on sparc:
+		if use sparc; then
+			echo "SplitObjs=NO" >> mk/build.mk
+		fi
+
+		if ! use llvm; then
+			echo "GhcWithLlvmCodeGen=NO" >> mk/build.mk
+		fi
+
+		# 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
+
+		# 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
+
+		if use gmp; then
+			echo "INTEGER_LIBRARY=integer-gmp" >> mk/build.mk
+		else
+			echo "INTEGER_LIBRARY=integer-simple" >> mk/build.mk
+		fi
+
+		# Since GHC 6.12.2 the GHC wrappers store which GCC version GHC was
+		# compiled with, by saving the path to it. The purpose is to make sure
+		# that GHC will use the very same gcc version when it compiles haskell
+		# sources, as the extra-gcc-opts files contains extra gcc options which
+		# match only this GCC version.
+		# However, this is not required in Gentoo, as only modern GCCs are used
+		# (>4).
+		# Instead, this causes trouble when for example ccache is used during
+		# compilation, but we don't want the wrappers to point to ccache.
+		# Due to the above, we simply set GCC to be "gcc". When compiling ghc it
+		# might point to ccache, once installed it will point to the users
+		# regular gcc.
+
+		local econf_args=()
+
+		is_crosscompile || econf_args+=--with-gcc=${CHOST}-gcc
+
+		econf ${econf_args[@]} --enable-bootstrap-with-devel-snapshot \
+			|| die "econf failed"
+
+		[[ ${PV} == *9999* ]] && GHC_PV="$(grep 'S\[\"PACKAGE_VERSION\"\]' config.status | sed -e 's@^.*=\"\(.*\)\"@\1@')"
+		GHC_TPF="$(grep 'S\[\"TargetPlatformFull\"\]' config.status | sed -e 's@^.*=\"\(.*\)\"@\1@')"
+	fi # ! use binary
+}
+
+src_compile() {
+	if ! use binary; then
+		#limit_jobs() {
+		#	if [[ -n ${I_DEMAND_MY_CORES_LOADED} ]]; then
+		#		ewarn "You have requested parallel build which is known to break."
+		#		ewarn "Please report all breakages upstream."
+		#		return
+		#	fi
+		#	echo $@
+		#}
+		# ghc massively parallel make: #409631, #409873
+		#   but let users screw it by setting 'I_DEMAND_MY_CORES_LOADED'
+		#emake $(limit_jobs -j1) all
+		# ^ above seems to be fixed.
+		emake all V=1
+
+		if is_crosscompile; then
+			# runghc does not work for a stage1 compiler, we can build it anyway
+			# so it will print the error message: not built for interactive use
+			pushd "${S}/utils/runghc" || die "Could not cd to utils/runghc"
+			if [ ! -f Setup.hs ]; then
+				echo 'import Distribution.Simple; main = defaultMainWithHooks defaultUserHooks' \
+					> Setup.hs || die "failed to create default Setup.hs"
+			fi
+			ghc -o setup --make Setup.hs || die "setup build failed"
+			./setup configure || die "runghc configure failed"
+			sed -e "s@VERSION@\"${GHC_PV}\"@" -i runghc.hs
+			./setup build || die "runghc build failed"
+			popd
+		fi
+	fi # ! use binary
+}
+
+src_install() {
+	if use binary; then
+		use prefix && mkdir -p "${ED}"
+		mv "${S}/usr" "${ED}"
+
+		# Remove the docs if not requested
+		if ! use doc; then
+			rm -rf "${ED}/usr/share/doc/${P}/*/" \
+				"${ED}/usr/share/doc/${P}/*.html" \
+				|| die "could not remove docs (P vs PF revision mismatch?)"
+		fi
+	else
+		local insttarget="install"
+
+		# We only built docs if we were bootstrapping, otherwise
+		# we copy them out of the unpacked binary .tbz2
+		if use doc && ! use ghcbootstrap; then
+			mkdir -p "${ED}/usr/share/doc"
+			mv "${WORKDIR}/usr/share/doc/${P}" "${ED}/usr/share/doc" \
+				|| die "failed to copy docs"
+		else
+			dodoc "${S}/README" "${S}/ANNOUNCE" "${S}/LICENSE" "${S}/VERSION"
+		fi
+
+		emake -j1 ${insttarget} \
+			DESTDIR="${D}" \
+			|| die "make ${insttarget} failed"
+
+		# remove wrapper and linker
+		rm -f "${ED}"/usr/bin/haddock*
+
+		# ghci uses mmap with rwx protection at it implements dynamic
+		# linking on it's own (bug #299709)
+		# so mark resulting binary
+		pax-mark -m "${ED}/usr/$(get_libdir)/${P}/ghc"
+
+		if [[ ! -f "${S}/VERSION" ]]; then
+			echo "${GHC_PV}" > "${S}/VERSION" \
+				|| die "Could not create file ${S}/VERSION"
+		fi
+		dobashcomp "${FILESDIR}/ghc-bash-completion"
+
+	fi
+
+	# path to the package.cache
+	local package_confdir="${ED}/usr/$(get_libdir)/${PN}-${GHC_PV}/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/$(get_libdir)/${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 --upgrade'"
+		ewarn "to rebuild all ghc-based Haskell libraries."
+		ewarn
+		ewarn "\e[1;31m************************************************************************\e[0m"
+		ewarn
+	fi
+	if is_crosscompile; then
+		ewarn
+		ewarn "\e[1;31m************************************************************************\e[0m"
+		ewarn
+		ewarn "GHC built as a cross compiler.  The interpreter, ghci and runghc, do"
+		ewarn "not work for a cross compiler."
+		ewarn "For the ghci error: \"<command line>: not built for interactive use\" see:"
+		ewarn "http://www.haskell.org/haskellwiki/GHC:FAQ#When_I_try_to_start_ghci_.28probably_one_I_compiled_myself.29_it_says_ghc-5.02:_not_built_for_interactive_use"
+		ewarn
+		ewarn "\e[1;31m************************************************************************\e[0m"
+		ewarn
+	fi
+}
+
+pkg_prerm() {
+	# Be very careful here... Call order when upgrading is (according to PMS):
+	# * src_install for new package
+	# * pkg_preinst for new package
+	# * pkg_postinst for new package
+	# * pkg_prerm for the package being replaced
+	# * pkg_postrm for the package being replaced
+	# so you'll actually be touching the new packages files, not the one you
+	# uninstall, due to that or installation directory ${P} will be the same for
+	# both packages.
+
+	# Call order for reinstalling is (according to PMS):
+	# * src_install
+	# * pkg_preinst
+	# * pkg_prerm for the package being replaced
+	# * pkg_postrm for the package being replaced
+	# * pkg_postinst
+
+	# Overwrite the modified package.cache with a copy of the
+	# original one, so that it will be removed during uninstall.
+
+	PKGCACHE="${EROOT}/usr/$(get_libdir)/${P}/package.conf.d/package.cache"
+	rm -rf "${PKGCACHE}"
+
+	cp -p "${PKGCACHE}"{.shipped,}
+}