Bump ghc to 7.4.1

Package-Manager: portage-2.1.10.49/cvs/Linux x86_64

6 files changed, 653 insertions, 17 deletions

diff --git a/dev-lang/ghc/ChangeLog b/dev-lang/ghc/ChangeLog
index de4b70d0362d..0af2aec6b3c5 100644
--- a/dev-lang/ghc/ChangeLog
+++ b/dev-lang/ghc/ChangeLog
@@ -1,6 +1,13 @@
 # ChangeLog for dev-lang/ghc
-# Copyright 1999-2011 Gentoo Foundation; Distributed under the GPL v2
-# $Header: /var/cvsroot/gentoo-x86/dev-lang/ghc/ChangeLog,v 1.210 2011/12/28 08:47:34 josejx Exp $
+# Copyright 1999-2012 Gentoo Foundation; Distributed under the GPL v2
+# $Header: /var/cvsroot/gentoo-x86/dev-lang/ghc/ChangeLog,v 1.211 2012/03/04 05:49:54 gienah Exp $
+
+*ghc-7.4.1 (04 Mar 2012)
+
+  04 Mar 2012; Mark Wright <gienah@gentoo.org> ghc-7.0.4.ebuild,
+  +files/ghc-7.2.1-freebsd-CHOST.patch,
+  +files/ghc-7.4-rc2-macos-prefix-respect-gcc.patch, +ghc-7.4.1.ebuild:
+  Bump ghc to 7.4.1
 
   28 Dec 2011; Joseph Jezak <josejx@gentoo.org> ghc-7.0.4.ebuild,
   +files/ghc-7.0.4-fix-ppc-linker.patch:
diff --git a/dev-lang/ghc/Manifest b/dev-lang/ghc/Manifest
index 01e07529a08d..50a8124f3b4f 100644
--- a/dev-lang/ghc/Manifest
+++ b/dev-lang/ghc/Manifest
@@ -1,6 +1,3 @@
------BEGIN PGP SIGNED MESSAGE-----
-Hash: SHA1
-
 AUX ghc-6.10.4-autoconf.patch 2010 RMD160 c5154aca1828ff5bf5289da6167c2218ad6cb1ab SHA1 a100d0ba94516eacc7dcb5d99fd3b69a72f6e658 SHA256 125afd89af86b32bcf88dd97860993dc6f7ef9920a3f3dfb577897837fbcf4fe
 AUX ghc-6.10.4-disable-strip.patch 782 RMD160 b892e4133ff36e056e3f0e015388b1a5ffd61da4 SHA1 d83ca80f339f5de1772e2e70dbf2d6353257ba84 SHA256 3d61160acc28afed2c2fd0a37c460b57368d81d5a18c8fcd07867cfdc8a190a6
 AUX ghc-6.10.4-ia64-fixed-relax.patch 1368 RMD160 83b75c2cb44c4b35d12206570c59830706314537 SHA1 9f6c81a9ca9657be580ffb232d4dc73ae1bfbe11 SHA256 f2862403cc89c3f7e83fcc569cf357597d70afd444194178eb2a299f16a938c3
@@ -31,6 +28,8 @@ AUX ghc-7.0.4-CHOST-softfloat.patch 371 RMD160 91988c43d3ec589a49707979eb8c6d785
 AUX ghc-7.0.4-darwin8.patch 486 RMD160 475b8276380291d6c88866fc021fc33c795f28d9 SHA1 1c10dda546a339bb206e3d7047314c7b377d9254 SHA256 b0857679f29aab3719df5538a2f104924cf5df913927a2748be3f77d2c8ea481
 AUX ghc-7.0.4-fix-ppc-linker.patch 732 RMD160 139a1ea0b5ee6dfbe5c457f86199b35be66c441b SHA1 f17b6f016b85f1effa511f30f808f26720eb55e1 SHA256 983689df4b59985ffc2aa116f553d91c9743610e671530350d7b2c55998d1549
 AUX ghc-7.0.4-nxstack.patch 984 RMD160 e475ccc5cc6e06bb736ebb84c72135bc94434d99 SHA1 3cafa50092d0607728999c93225aa4dd67b4a451 SHA256 325f00f12922edaf54e6df56acc7743e40234c53e2f341b9a28e4fe22fb4569f
+AUX ghc-7.2.1-freebsd-CHOST.patch 472 RMD160 06dec133486f6eeb4e98434a1c1694523aafaa34 SHA1 b5a71785113307fcc2dc588e52acfe1fb6842b2d SHA256 f9538a6d3fc3e9023fa1647ccb05ac3f93cdc285c4e8cd2cb7fd5f53262dbabb
+AUX ghc-7.4-rc2-macos-prefix-respect-gcc.patch 776 RMD160 d5af3a2250655c21c8c2d6d1fdd5b11c3ba8dea6 SHA1 537341bd7778875fba786d13b87979cd83be448f SHA256 7ffcbfc1822408cf8ed17f2f35c192e56967fc1e83265764aa414b868b69f463
 AUX ghc-apply-gmp-hack 2585 RMD160 1246e8fc40bbbb28f52f755457feca97bf3e22cc SHA1 63a7999b829548f82bcdcc4da869956abe2890bf SHA256 0d3c9e52be232734c916e9765fae770225ad6fb04c0948780867450401ff1eed
 AUX ghc-bash-completion 6496 RMD160 61574aab2f8ed4ae906df5ac291f528384b79b87 SHA1 a0d7c264cc8ff3d235511e151dc82f9e16691bac SHA256 82a862bea2c9248e06fcf74d307de07b05a55f9eb95f412762bd02e53fece822
 DIST ghc-6.10.1-i386-apple-darwin.tar.bz2 97910484 RMD160 3764303b9c9161905b5c0e2e4000cfe0fceea85c SHA1 299a829981db533cbab71426051cf924f4a6cdd7 SHA256 b806bf9c163314c3aac389df1cf5f30e31d3557baa0eabce9279f6ef58305d51
@@ -40,6 +39,7 @@ DIST ghc-6.10.4-sparc-sun-solaris2.tar.bz2 87371847 RMD160 6028d2224524c6dfeb7b9
 DIST ghc-6.10.4-src.tar.bz2 8060565 RMD160 5f83baf2549f1f4bea140c6a80728c2a76f60ab6 SHA1 0566858b409066d98da70de5adb9a7030d0df5dc SHA256 d66a8e52572f4ff819fe5c4e34c6dd1e84a7763e25c3fadcc222453c0bd8534d
 DIST ghc-6.12.3-src.tar.bz2 26592939 RMD160 021619aec4c820009e77745657bfdf0d9705f3e7 SHA1 d811be2131d4403ea452aa94fe71edd1b6bd0a79 SHA256 6cbdbe415011f2c7d15e4d850758d8d393f70617b88cb3237d2c602bb60e5e68
 DIST ghc-7.0.4-src.tar.bz2 24205070 RMD160 80727043c2141a0472f9e2fffcdf5a8eb9fb55ec SHA1 469a7ed626e53bf02f1e73713dea61e172106fd5 SHA256 1a9b78d9d66c9c21de6c0932e36bb87406a4856f1611bf83bd44539bdc6ed0ed
+DIST ghc-7.4.1-src.tar.bz2 25272609 RMD160 00c6a4df54e55559812b0e289dbc6fe8523d18da SHA1 66c5a027fef1ed01c35c3493e964fb3657efc936 SHA256 721c09a49e519b7459b67b451b5103252ba3833906a7a24c3a3679ff94669a79
 DIST ghc-bin-6.10.4-alpha.tbz2 84499083 RMD160 5f68a5592663d7c6abf3617ccab9aa35cbfc2d63 SHA1 88fb6020bf1fab2e0914c223087af94e926a1dda SHA256 cfe28ea83e000f1ba0853b78dd27b35fa5d823c4cb94699f901aec5e2705c315
 DIST ghc-bin-6.10.4-amd64.tbz2 51566179 RMD160 68b261b4bbef89021a2c92e99c70db45ed85d9e7 SHA1 27e542cc49fa47566c59407fad1c9254d46a8d03 SHA256 2ced87862603a44a59744459a8231f587c0f225f70eb4861ad2db5098c2433a1
 DIST ghc-bin-6.10.4-ia64.tbz2 86508052 RMD160 ea1f1de73be8ca51abd8eb748d92694ea4ade2f6 SHA1 eea28fe871e1e3821b370715930864d7fd955181 SHA256 2e8f03eec65329abb15c3d3351d8d4f896ac6c7fc8a8b3815807c3bd0329292e
@@ -64,13 +64,7 @@ DIST ghc-bin-7.0.4-x86.tbz2 81814964 RMD160 c901d8b58679d243fa0e77ac7b8d0b6c63fc
 EBUILD ghc-6.10.4-r1.ebuild 13011 RMD160 4feb3ad764af5ad16b3dd5a000d49755c8b91c2a SHA1 c8eb3181598c05053e1f27b5fdb2a3a4264377b1 SHA256 f8c163192a9c5a62158bbb5698cef9872fa0e64956689aeafb3f90c8c9670b0a
 EBUILD ghc-6.12.3-r2.ebuild 20515 RMD160 6db339fd7d94a8db5d8cd30730037151855bbaf9 SHA1 be6f59c823756aab0ce6c8e492469855b6d04cde SHA256 2a14fff51f910460049540a77e006e0978e7f623907b273bacf779c88d418694
 EBUILD ghc-6.12.3.ebuild 15063 RMD160 6476ac66f125ad0d2c13351a73e560b1df67c822 SHA1 15d9cd33ba4bb23b31d8a03111d31d4bd1bfe603 SHA256 f968048385c848f60007ea9bca2598c7d26a06a02945557b912dd587636d3ece
-EBUILD ghc-7.0.4.ebuild 20049 RMD160 fd342034898b4773851bc039cfac39787374fb67 SHA1 82310689c605c0152ade15c45762b0ae1fc458e7 SHA256 adc186f93e32c4adff6a282a942c3b177aed7f70c599de16e156a87df82d2b69
-MISC ChangeLog 38842 RMD160 bf47b8897cce18e2b59b8584218662f7af8c9397 SHA1 72f9216ce66c924330418504157583315c51fb3f SHA256 4e195a1a9dedc592c267cd1a98a9e6f6224c95d5252dedbf52fbc704799e1277
+EBUILD ghc-7.0.4.ebuild 20046 RMD160 dd7421518a6ac10421ad7a2b3c4ac577f7f2f2de SHA1 136a2cb5e6d9e2e51ee6604b72fc9c5f97f7580d SHA256 c50196a4af5769c4bd0d9912be696c2a6baa76c232b177d633f0e8c40b990e2a
+EBUILD ghc-7.4.1.ebuild 20523 RMD160 55fe64177084cc67703c3c492b6ede683f97b824 SHA1 d2b71080f401b85a58c2836e7bd8daa265373436 SHA256 eb9939f5f650e5a5919b706d7e4ce8e0cb6b8af0e94d22e2f5e8400934224627
+MISC ChangeLog 39066 RMD160 15c6c4dc862d25954be07d28ec2f26d06d35b2f5 SHA1 8944abc7946665c268c3ae77059c63c055b6c061 SHA256 b00e099b8ad050e30e25da1ea16741a924d8c8b92ebd3a354163840d6fdaec63
 MISC metadata.xml 511 RMD160 79a995fb7989ead0e2a1aaae42a015a34864e2ff SHA1 a7222153de1350459b28c0be825beeb13c0aa16e SHA256 4474d6b9638e6b78e16025c88b5455fa353ca723c05ce80aa3f8b426149ec1dd
------BEGIN PGP SIGNATURE-----
-Version: GnuPG v2.0.17 (GNU/Linux)
-
-iEYEARECAAYFAk7617QACgkQcsIHjyDViGTYUACg6Nk8wZP4H4HGKYi59M3oOY6r
-PVcAoONlba0FzvQqw0QaBqUQAd/QDvGG
-=uJHP
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diff --git a/dev-lang/ghc/files/ghc-7.2.1-freebsd-CHOST.patch b/dev-lang/ghc/files/ghc-7.2.1-freebsd-CHOST.patch
new file mode 100644
index 000000000000..da59cd789f99
--- /dev/null
+++ b/dev-lang/ghc/files/ghc-7.2.1-freebsd-CHOST.patch
@@ -0,0 +1,13 @@
+diff --git a/aclocal.m4 b/aclocal.m4
+index 11bb003..52df243 100644
+--- a/aclocal.m4
++++ b/aclocal.m4
+@@ -1545,7 +1545,7 @@ case "$1" in
+   freebsd|netbsd|openbsd|dragonfly|osf1|osf3|hpux|linuxaout|kfreebsdgnu|freebsd2|solaris2|cygwin32|mingw32|darwin|gnu|nextstep2|nextstep3|sunos4|ultrix|irix|aix|haiku)
+     $2="$1"
+     ;;
+-  freebsd8) # like i686-gentoo-freebsd8
++  freebsd*) # like i686-gentoo-freebsd8 or i686-gentoo-freebsd8.2
+     $2="freebsd"
+     ;;
+   darwin*)
diff --git a/dev-lang/ghc/files/ghc-7.4-rc2-macos-prefix-respect-gcc.patch b/dev-lang/ghc/files/ghc-7.4-rc2-macos-prefix-respect-gcc.patch
new file mode 100644
index 000000000000..770fd650606b
--- /dev/null
+++ b/dev-lang/ghc/files/ghc-7.4-rc2-macos-prefix-respect-gcc.patch
@@ -0,0 +1,23 @@
+diff --git a/aclocal.m4 b/aclocal.m4
+index a377cb9..4f8fd69 100644
+--- a/aclocal.m4
++++ b/aclocal.m4
+@@ -1950,17 +1950,7 @@ AC_DEFUN([XCODE_VERSION],[
+ # --------------------------------
+ # Finds where gcc is
+ AC_DEFUN([FIND_GCC],[
+-    if test "$TargetOS_CPP" = "darwin" &&
+-       test "$XCodeVersion1" -eq 4 &&
+-       test "$XCodeVersion2" -lt 2
+-    then
+-        # In Xcode 4.1, 'gcc-4.2' is the gcc legacy backend (rather
+-        # than the LLVM backend). We prefer the legacy gcc, but in
+-        # Xcode 4.2 'gcc-4.2' was removed.
+-        FP_ARG_WITH_PATH_GNU_PROG([CC], [gcc-4.2])
+-    else
+-        FP_ARG_WITH_PATH_GNU_PROG([CC], [gcc])
+-    fi
++    FP_ARG_WITH_PATH_GNU_PROG([CC], [gcc])
+     export CC
+     WhatGccIsCalled="$CC"
+     AC_SUBST(WhatGccIsCalled)
diff --git a/dev-lang/ghc/ghc-7.0.4.ebuild b/dev-lang/ghc/ghc-7.0.4.ebuild
index 060cab0b7082..3f8751599230 100644
--- a/dev-lang/ghc/ghc-7.0.4.ebuild
+++ b/dev-lang/ghc/ghc-7.0.4.ebuild
@@ -1,6 +1,6 @@
-# Copyright 1999-2011 Gentoo Foundation
+# Copyright 1999-2012 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
-# $Header: /var/cvsroot/gentoo-x86/dev-lang/ghc/ghc-7.0.4.ebuild,v 1.4 2011/12/28 08:47:34 josejx Exp $
+# $Header: /var/cvsroot/gentoo-x86/dev-lang/ghc/ghc-7.0.4.ebuild,v 1.5 2012/03/04 05:49:54 gienah Exp $
 
 # Brief explanation of the bootstrap logic:
 #
@@ -193,7 +193,7 @@ relocate_path() {
 	for file in "$@"
 	do
 		sed -i -e "s|$from|$to|g" \
-		    "$file" || die "path relocation failed for '$file'"
+			"$file" || die "path relocation failed for '$file'"
 	done
 }
 
diff --git a/dev-lang/ghc/ghc-7.4.1.ebuild b/dev-lang/ghc/ghc-7.4.1.ebuild
new file mode 100644
index 000000000000..ca642085fc84
--- /dev/null
+++ b/dev-lang/ghc/ghc-7.4.1.ebuild
@@ -0,0 +1,599 @@
+# Copyright 1999-2012 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/dev-lang/ghc/ghc-7.4.1.ebuild,v 1.1 2012/03/04 05:49:54 gienah 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="4"
+
+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-fixed-fiw.tbz2 )"
+#arch_binaries="$arch_binaries ppc? ( mirror://gentoo/ghc-bin-${PV}-ppc.tbz2 )"
+#arch_binaries="$arch_binaries ppc64? ( mirror://gentoo/ghc-bin-${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 "${ARCH}" in
+		#alpha)
+		#	return 0
+		#	;;
+		#arm)
+		#	ewarn "ARM binary is built on armv5tel-eabi toolchain. Use with caution."
+		#	return 0
+		#	;;
+		#amd64)
+		#	return 0
+		#	;;
+		##sparc)
+		#	return 0
+		#	;;
+		#x86)
+		#	return 0
+		#	;;
+		*)
+			return 1
+			;;
+	esac
+}
+
+SRC_URI="!binary? ( http://www.haskell.org/ghc/dist/${PV}/${P}-src.tar.bz2 )"
+[[ -n $arch_binaries ]] && SRC_URI+=" !ghcbootstrap? ( $arch_binaries )"
+LICENSE="BSD"
+SLOT="0"
+# ghc on ia64 needs gcc to support -mcmodel=medium (or some dark hackery) to avoid TOC overflow
+KEYWORDS="~alpha ~amd64 -ia64 ~ppc ~ppc64 ~sparc ~x86 ~x86-fbsd ~amd64-linux ~x86-linux ~ppc-macos ~x86-macos ~sparc-solaris ~x86-solaris"
+IUSE="doc ghcbootstrap llvm"
+IUSE+=" binary" # don't forget about me later!
+
+RDEPEND="
+	!kernel_Darwin? ( >=sys-devel/gcc-2.95.3 )
+	kernel_linux? ( >=sys-devel/binutils-2.17 )
+	kernel_SunOS? ( >=sys-devel/binutils-2.17 )
+	>=dev-lang/perl-5.6.1
+	>=dev-libs/gmp-5
+	!<dev-haskell/haddock-2.4.2
+	sys-libs/ncurses[unicode]"
+# earlier versions than 2.4.2 of haddock only works with older ghc releases
+
+# force dependency on >=gmp-5, even if >=gmp-4.1 would be enough. this is due to
+# that we want the binaries to use the latest versioun available, and not to be
+# built against gmp-4
+
+DEPEND="${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 ) )"
+# In the ghcbootstrap case we rely on the developer having
+# >=ghc-5.04.3 on their $PATH already
+
+PDEPEND="!ghcbootstrap? ( =app-admin/haskell-updater-1.2* )"
+PDEPEND="
+	${PDEPEND}
+	dev-haskell/random
+	dev-haskell/syb
+	llvm? ( sys-devel/llvm )"
+
+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() {
+	# 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};;
+
+			# Debugging flags don't help either. You can't debug Haskell code
+			# at the C source level and the mangler discards the debug info.
+			-g*) ;;
+
+			# 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
+
+	# 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() {
+	[[ ${CHOST} != *-darwin* ]] && \
+		source "${FILESDIR}/ghc-apply-gmp-hack" "$(get_libdir)"
+
+	ghc_setup_cflags
+
+	if ! use ghcbootstrap; 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 "${WORKDIR}"/ghc-bin-installer > /dev/null || die
+				use sparc-solaris && unpack ghc-6.10.4-sparc-sun-solaris2.tar.bz2
+				use x86-solaris && unpack ghc-6.10.4-i386-unknown-solaris2.tar.bz2
+				use ppc-macos && unpack ghc-6.10.1-powerpc-apple-darwin.tar.bz2
+				use x86-macos && unpack ghc-6.10.1-i386-apple-darwin.tar.bz2
+				popd > /dev/null
+
+				pushd "${WORKDIR}"/ghc-bin-installer/ghc-6.10.? > /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
+					# http://hackage.haskell.org/trac/ghc/ticket/2942
+					pushd utils/haddock/dist-install/build > /dev/null
+					ln -s Haddock haddock >& /dev/null # fails on IN-sensitive
+					popd > /dev/null
+
+					local readline_framework=GNUreadline.framework/GNUreadline
+					local gmp_framework=/opt/local/lib/libgmp.3.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
+
+		if use prefix; then
+			# Make configure find docbook-xsl-stylesheets from Prefix
+			sed -i -e '/^FP_DIR_DOCBOOK_XSL/s:\[.*\]:['"${EPREFIX}"'/usr/share/sgml/docbook/xsl-stylesheets/]:' utils/haddock/doc/configure.ac || die
+		fi
+
+		# as we have changed the build system
+		eautoreconf
+	fi
+}
+
+src_configure() {
+	if ! use binary; then
+
+		# initialize build.mk
+		echo '# Gentoo changes' > mk/build.mk
+
+		# Put docs into the right place, ie /usr/share/doc/ghc-${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
+		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
+			echo "HADDOCK_DOCS       = YES" >> mk/build.mk
+		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: unimplemented or never worked
+		if use alpha || use ppc64 || use arm; 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
+		if use alpha || use ia64 || use ppc64; 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
+
+		# 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:${PATH}"
+		fi
+
+		# Since GHC 6.12.2 the GHC wrappers store which GCC version GHC was
+		# compiled with, by saving the path to it. The purpose is to make sure
+		# that GHC will use the very same gcc version when it compiles haskell
+		# sources, as the extra-gcc-opts files contains extra gcc options which
+		# match only this GCC version.
+		# However, this is not required in Gentoo, as only modern GCCs are used
+		# (>4).
+		# Instead, this causes trouble when for example ccache is used during
+		# compilation, but we don't want the wrappers to point to ccache.
+		# Due to the above, we simply set GCC to be "gcc". When compiling ghc it
+		# might point to ccache, once installed it will point to the users
+		# regular gcc.
+
+		econf --with-gcc=gcc || die "econf failed"
+	fi # ! use binary
+}
+
+src_compile() {
+	if ! use binary; then
+		emake all || die "make failed"
+	fi # ! use binary
+}
+
+src_install() {
+	if use binary; then
+		use prefix && mkdir -p "${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; then
+			if ! use ghcbootstrap; then
+				mkdir -p "${ED}/usr/share/doc"
+				mv "${WORKDIR}/usr/share/doc/${P}" "${ED}/usr/share/doc" \
+					|| die "failed to copy docs"
+			fi
+		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)/${P}/ghc"
+
+		dodoc "${S}/README" "${S}/ANNOUNCE" "${S}/LICENSE" "${S}/VERSION"
+
+		dobashcompletion "${FILESDIR}/ghc-bash-completion"
+
+	fi
+
+	# path to the package.cache
+	PKGCACHE="${ED}/usr/$(get_libdir)/${P}/package.conf.d/package.cache"
+
+	# copy the package.conf, including timestamp, save it so we later can put it
+	# back before uninstalling, or when upgrading.
+	cp -p "${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
+
+	bash-completion_pkg_postinst
+}
+
+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,}
+}