# $Id$

PortSystem 1.0

name		ghc
version		6.8.3
categories	lang
maintainers	gwright@macports.org
platforms	darwin
description	The Glorious Glasgow Haskell Compilation System
long_description	\
		The Glasgow Haskell Compiler is a robust,		\
		fully-featured, optimising compiler and interactive	\
		environment for Haskell 98, GHC compiles Haskell to	\
		either native code or C.  It implements numerous	\
		experimental language extensions to Haskell 98,		\
		for example: concurrency, a foreign language interface,	\
		multi-parameter type classes, scoped type variables,	\
		existential and universal quantification, unboxed	\
		types, exceptions, weak pointers, and so on.		\
		GHC comes with a generational garbage collector,	\
		and a space and time profiler.

homepage	http://haskell.org/
master_sites	${homepage}${name}/dist/${version}/

use_bzip2	yes

distfiles	${name}-${version}-src.tar.bz2			\
		${name}-${version}-src-extralibs.tar.bz2

checksums	${name}-${version}-src.tar.bz2 \
			md5     dfa31028b4d06d1d226f55fe3a2ab7b3 \
			sha1    f908b0e0293014dde587abd8c7912eb490f9b3d2 \
			rmd160  415cd144f0641a0c5887ad7325e2e775e93044f0 \
		${name}-${version}-src-extralibs.tar.bz2 \
			md5     5ac72f5d5433151cf6b718dc6601dc41 \
			sha1    800258df7d86f5538fd2cc54829e29e90183b882 \
			rmd160  f701da7129075ae62dfb6c524efd39103f944ad3 \

patchfiles	patch-configure.ac.diff					\
		patch-libraries-Makefile.diff				\
		patch-libraries-base-base.cabal.diff			\
		patch-libraries-base-base.buildinfo.in.diff		\
		patch-libraries-base-configure.ac.diff			\
		patch-libraries-base-aclocal.m4.diff			\
		patch-libraries-hpc-Setup.hs.diff			\
		patch-libraries-hpc-hpc.cabal.diff			\
		patch-libraries-hpc-hpc.buildinfo.in.diff		\
		patch-libraries-hpc-configure.ac.diff			\
		patch-libraries-hpc-aclocal.m4.diff

depends_lib	port:readline \
		port:gmp

# Yes, it some situations (-fvia-C) we really need perl
# to _run_ ghc, since the mangler (an assembly to assembly transformation)
# is a perl script. That's why it called the "Evil Mangler".
#
depends_run	port:perl5.8


platform darwin 6 {
		pre-fetch {
			return -code error "${name} is not supported on Mac OS X 10.2.x (Jaguar)"
		}
	}


platform darwin 7 {
		pre-fetch {
			return -code error "${name} is not supported on Mac OS X 10.3.x (Panther)"
		}
}


platform darwin 8 powerpc {
		global ghc_bootversion
		set ghc_bootversion	6.6.1

		master_sites-append	${homepage}${name}/dist/${ghc_bootversion}/:bootstrap

		distfiles-append	${name}-${ghc_bootversion}-darwin-ppc-tiger-bootstrap.tar.bz2:bootstrap

		checksums-append	${name}-${ghc_bootversion}-darwin-ppc-tiger-bootstrap.tar.bz2 md5 0842380935d4ce3a2150976eff0f09a0

		extract.only		${name}-${version}-src.tar.bz2 \
					${name}-${version}-src-extralibs.tar.bz2 \
					${name}-${ghc_bootversion}-darwin-ppc-tiger-bootstrap.tar.bz2
}


platform darwin 8 i386 {
		global ghc_bootversion
		set ghc_bootversion	6.6

		master_sites-append	${homepage}${name}/dist/${ghc_bootversion}/:bootstrap

		distfiles-append	${name}-${ghc_bootversion}-darwin-i386-tiger-bootstrap.tar.bz2:bootstrap

		checksums-append	${name}-${ghc_bootversion}-darwin-i386-tiger-bootstrap.tar.bz2 md5 f86c72775f1b1d07867c1e7be46af680

		extract.only		${name}-${version}-src.tar.bz2 \
					${name}-${version}-src-extralibs.tar.bz2 \
					${name}-${ghc_bootversion}-darwin-i386-tiger-bootstrap.tar.bz2
}


platform darwin 9 powerpc {
		global ghc_bootversion
		set ghc_bootversion	6.8.2

		master_sites-append	${homepage}${name}/dist/${ghc_bootversion}/:bootstrap

		distfiles-append	${name}-${ghc_bootversion}-darwin-ppc-leopard-bootstrap.tar.bz2:bootstrap

		checksums-append	${name}-${ghc_bootversion}-darwin-ppc-leopard-bootstrap.tar.bz2 md5 2b24f840b8b1b6cb69b524aaa885aa59

		patchfiles-append	patch-PprMach.hs.diff

		extract.only		${name}-${version}-src.tar.bz2 \
					${name}-${version}-src-extralibs.tar.bz2 \
					${name}-${ghc_bootversion}-darwin-ppc-leopard-bootstrap.tar.bz2
}


platform darwin 9 i386 {
		global ghc_bootversion
		set ghc_bootversion	6.8.2

		master_sites-append	${homepage}${name}/dist/${ghc_bootversion}/:bootstrap

		distfiles-append	${name}-${ghc_bootversion}-darwin-i386-leopard-bootstrap.tar.bz2:bootstrap

		checksums-append	${name}-${ghc_bootversion}-darwin-i386-leopard-bootstrap.tar.bz2 md5 f263cedef8bcbaa7e9014b3e06923583

		extract.only		${name}-${version}-src.tar.bz2 \
					${name}-${version}-src-extralibs.tar.bz2 \
					${name}-${ghc_bootversion}-darwin-i386-leopard-bootstrap.tar.bz2
}


post-patch	{
		reinplace "s|/opt/local|${workpath}/ghc-bootstrap|g" ${workpath}/ghc-bootstrap/lib/ghc-${ghc_bootversion}/package.conf

		reinplace "s|GHCBIN=/opt/local|GHCBIN=${workpath}/${name}-bootstrap|" ${workpath}/${name}-bootstrap/bin/ghc

		reinplace "s|TOPDIROPT=-B/opt/local|TOPDIROPT=-B${workpath}/${name}-bootstrap|" ${workpath}/${name}-bootstrap/bin/ghc

		reinplace "s|-L/opt/local|-L${prefix}|" ${workpath}/${name}-bootstrap/bin/ghc

		reinplace "s|-I/opt/local|-I${prefix}|" ${workpath}/${name}-bootstrap/bin/ghc

		reinplace "s|/opt/local|${prefix}|" ${workpath}/${name}-bootstrap/lib/ghc-${ghc_bootversion}/ghc-asm

		reinplace "s|/opt/local|${prefix}|" ${workpath}/${name}-bootstrap/lib/ghc-${ghc_bootversion}/ghc-split

}


pre-configure	{
		system "autoreconf ${worksrcpath}"
		system "autoreconf ${worksrcpath}/libraries/base"
		system "autoreconf ${worksrcpath}/libraries/hpc"

		set cfg [open "${worksrcpath}/mk/build.mk" w]
	  	puts $cfg "#"
	  	puts $cfg "# Local configuration overrides for MacPorts"
	  	puts $cfg "#"
	  	puts $cfg "SRC_CC_OPTS += -I${prefix}/include"
	  	puts $cfg "SRC_HC_OPTS += -I${prefix}/include -L${prefix}/lib"
	  	puts $cfg "EXTRA_HSC2HS_OPTS += -I${prefix}/include"
	  	puts $cfg "EXTRA_LD_OPTS += -L${prefix}/lib"
	  	close $cfg
}

#bugs		GHC does not support DESTDIR. Instead, we install	\
#		everything into ${destroot}${prefix}, and then fix up	\
#		the five scripts which actually have the installation	\
#		path hard coded.

configure.ldflags-append	"-L/usr/lib"
configure.cflags-append		"-I${prefix}/include"
configure.env		DYLD_FALLBACK_LIBRARY_PATH=${prefix}/lib

configure.args	--prefix=${destroot}${prefix}			\
		--mandir=${destroot}${prefix}/share/man/	\
		--with-gmp-includes=${prefix}/include		\
		--with-gmp-libraries=${prefix}/lib		\
		--with-readline-includes=${prefix}/include	\
		--with-readline-libraries=${prefix}/lib		\
		--with-ghc='${workpath}/${name}-bootstrap/bin/ghc'

variant no_opengl description {omit OpenGL support} {
	configure.args-append --disable-opengl
	configure.args-append --disable-glut
}

# The OpenAL variant does not work yet (see http://hackage.haskell.org/trac/ghc/ticket/2067)
#variant openal description {include OpenAL support} {
#	configure.args-append --enable-openal
#	configure.args-append --enable-alut
#}

build	{
	system "env DYLD_FALLBACK_LIBRARY_PATH=${prefix}/lib ${build.cmd}"
}

# This should not be necessary, but it seems to work around a bug
# that exist at least in MP 1.600.
destroot	{
	system "cd ${worksrcpath} && ${destroot.cmd} ${destroot.target}"
}

post-destroot	{
	reinplace s|${destroot}${prefix}|${prefix}|g ${destroot}${prefix}/bin/ghc
	reinplace s|${destroot}${prefix}|${prefix}|g ${destroot}${prefix}/bin/ghci
	reinplace s|${destroot}${prefix}|${prefix}|g ${destroot}${prefix}/bin/ghc-pkg
	reinplace s|${destroot}${prefix}|${prefix}|g ${destroot}${prefix}/bin/ghcprof
	reinplace s|${destroot}${prefix}|${prefix}|g ${destroot}${prefix}/bin/hsc2hs

	reinplace "s|\\\$@\"\}|\\\$@\"\} -L${prefix}/lib -I${prefix}/include |" ${destroot}${prefix}/bin/ghc
	reinplace s|${destroot}${prefix}|${prefix}|g ${destroot}${prefix}/lib/${name}-${version}/package.conf

        system "ranlib ${destroot}${prefix}/lib/ghc-${version}/*.a"
}