# $Id$

PortSystem 1.0

name		ghc
set canonicalname	ghc
version		6.10.3
revision	7
categories	lang haskell
maintainers	gwright
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/${canonicalname}
master_sites	${homepage}/dist/${version}/

use_bzip2	yes

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

checksums       ${canonicalname}-${version}-src.tar.bz2 \
                    md5     3de6a6d434c2b43def10c4cc613b265e \
                    sha1    598bef94c99011a4f6791b8fbb7153ba7dffaf92 \
                    rmd160  90b01fefd474a64cf6b6b507f224abf6250745d3 \
                ${canonicalname}-${version}-src-extralibs.tar.bz2 \
                    md5     d0fe09625556ea274df11d601c1b2a15 \
                    sha1    4c208e0d4e604b39bcd7da753183a9f259408864 \
                    rmd160  7a0b46f9934f154fc897fcd44f7f79d4d98c1e94 \
                testsuite-${version}.tar.bz2 \
                    md5     8db949b5bca633b665952daaf2c4ad1c \
                    sha1    f857e5642f1beda71d0f96d96e02c45d953edd23 \
                    rmd160  723b12fed8250647ceaf89233153765a09a7b743 \

# ghc does not support a universal build:
universal_variant	no

# On (at least) i386/Tiger, the file compiler/ghc.cabal.in needs to be
# patched so it can find the GMP library.
#
patchfiles	patch-configure.ac.diff			\
		patch-aclocal.m4.diff			\
		patch-compiler-ghc.cabal.in.diff	\
		patch-libraries-Makefile.diff		\
		patch-runProcess.c.diff

depends_lib	port:gmp	\
		port:ncursesw	\
		port:libiconv

variant cabal_configure_debug description {Add verbose debugging to cabal configure commands} {
	patchfiles-append	patch-compiler-Makefile-debug.diff	\
				patch-ghc-Makefile-debug.diff		\
				patch-libraries-Makefile-debug.diff	\
				patch-mk-cabal.mk-debug.diff

	patchfiles-delete	patch-libraries-Makefile.diff
}

# 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".
#
# Not only that, but since correctly handling whitespace is critical,
# only perl 5.8 is known to work reliably.
#
depends_lib-append	port:perl5.8
configure.env-append	PerlCmd=${prefix}/bin/perl5.8

worksrcdir	${canonicalname}-${version}

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


platform darwin 8 powerpc {
		global ghc_bootversion
		set ghc_bootversion	6.10.1

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

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

                checksums-append	${canonicalname}-${ghc_bootversion}-darwin-ppc-tiger-bootstrap.tar.bz2 md5     511f4bec375b51aaa82de999529916ae		\
                      sha1    cb6974a680168246c6e13a92818b39c559d7a2b4	\
                      rmd160  be60cfffc0ed223fb39ce2fe40ad501486564f0e

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

		pre-fetch {
			set minimum_xcodeversion 2.5
        		set current_xcodeversion [exec defaults read /Developer/Applications/Xcode.app/Contents/Info CFBundleShortVersionString]
        		if {[rpm-vercomp ${current_xcodeversion} ${minimum_xcodeversion}] < 0} {
            			ui_msg "On Mac OS X ${macosx_version}, ${name} ${version} requires Xcode ${minimum_xcodeversion} but you have Xcode ${current_xcodeversion}."
            			return -code error "incompatible Xcode version"
        		}
		}
}


platform darwin 8 i386 {
		global ghc_bootversion
		set ghc_bootversion	6.6

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

		distfiles-append	${canonicalname}-${ghc_bootversion}-darwin-i386-tiger-bootstrap-rev1.tar.bz2:bootstrap

		checksums-append	${canonicalname}-${ghc_bootversion}-darwin-i386-tiger-bootstrap-rev1.tar.bz2 md5 f01663cecefd50b5f1e1f524f49cd6df

		extract.only		${canonicalname}-${version}-src.tar.bz2 \
					${canonicalname}-${version}-src-extralibs.tar.bz2 \
					${canonicalname}-${ghc_bootversion}-darwin-i386-tiger-bootstrap-rev1.tar.bz2

		pre-fetch {
			set minimum_xcodeversion 2.5
        		set current_xcodeversion [exec defaults read /Developer/Applications/Xcode.app/Contents/Info CFBundleShortVersionString]
        		if {[rpm-vercomp ${current_xcodeversion} ${minimum_xcodeversion}] < 0} {
            			ui_msg "On Mac OS X ${macosx_version}, ${name} ${version} requires Xcode ${minimum_xcodeversion} but you have Xcode ${current_xcodeversion}."
            			return -code error "incompatible Xcode version"
        		}
		}
}


platform darwin 9 powerpc {
		global ghc_bootversion
		set ghc_bootversion	6.10.1

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

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

                checksums-append	${canonicalname}-${ghc_bootversion}-darwin-ppc-leopard-bootstrap.tar.bz2 md5     511f4bec375b51aaa82de999529916ae	\
                        sha1    cb6974a680168246c6e13a92818b39c559d7a2b4\
                        rmd160  be60cfffc0ed223fb39ce2fe40ad501486564f0e

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

		pre-fetch {
			set minimum_xcodeversion 3.1.2
        		set current_xcodeversion [exec defaults read /Developer/Applications/Xcode.app/Contents/Info CFBundleShortVersionString]
        		if {[rpm-vercomp ${current_xcodeversion} ${minimum_xcodeversion}] < 0} {
            			ui_msg "On Mac OS X ${macosx_version}, ${name} ${version} requires Xcode ${minimum_xcodeversion} but you have Xcode ${current_xcodeversion}."
            			return -code error "incompatible Xcode version"
        		}
		}
}


platform darwin 9 i386 {
		global ghc_bootversion
		set ghc_bootversion	6.8.2

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

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

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

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

		pre-fetch {
			set minimum_xcodeversion 3.1
        		set current_xcodeversion [exec defaults read /Developer/Applications/Xcode.app/Contents/Info CFBundleShortVersionString]
        		if {[rpm-vercomp ${current_xcodeversion} ${minimum_xcodeversion}] < 0} {
            			ui_msg "On Mac OS X ${macosx_version}, ${name} ${version} requires Xcode ${minimum_xcodeversion} but you have Xcode ${current_xcodeversion}."
            			return -code error "incompatible Xcode version"
        		}
		}
}


post-extract {
     system "tar jxf ${distpath}/testsuite-${version}.tar.bz2 -C ${worksrcpath}"
}


post-patch	{
		reinplace "s|XXPATH_TO_GCCXX|${configure.cc}|" ${worksrcpath}/libraries/Makefile

		reinplace "s|XXPATH_TO_HSC2HSXX|${workpath}/ghc-bootstrap/bin/hsc2hs|" ${worksrcpath}/libraries/Makefile

		reinplace "s|XXMACPORTS_PREFIXXX|${prefix}|" ${worksrcpath}/compiler/ghc.cabal.in

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

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

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

		if {"/opt/local" != ${prefix}} {
			reinplace "s|-L/opt/local|-L${prefix}|" ${workpath}/${canonicalname}-bootstrap/bin/ghc
			reinplace "s|-I/opt/local|-I${prefix}|" ${workpath}/${canonicalname}-bootstrap/bin/ghc
			reinplace "s|/opt/local|${prefix}|g" \
				${workpath}/${canonicalname}-bootstrap/lib/ghc-${ghc_bootversion}/ghc-asm \
				${workpath}/${canonicalname}-bootstrap/lib/ghc-${ghc_bootversion}/ghc-split \
		}
}


pre-configure	{
		system "autoreconf ${worksrcpath}"

		set cfg [open "${workpath}/ghc-bootstrap/bin/ghc-pkg" w]
		puts $cfg "#!/bin/sh"
		puts $cfg "GHCPKGBIN=${workpath}/ghc-bootstrap/lib/ghc-${ghc_bootversion}/ghc-pkg.bin"
		puts $cfg "PKGCONF=${workpath}/ghc-bootstrap/lib/ghc-${ghc_bootversion}/package.conf"
		puts $cfg "exec \$GHCPKGBIN --global-conf \$PKGCONF \${1+\"\$@\"}"
		close $cfg

		system "chmod +x ${workpath}/ghc-bootstrap/bin/ghc-pkg"

		set cfg [open "${workpath}/ghc-bootstrap/bin/hsc2hs" w]
		puts $cfg "#!/bin/sh"
		puts $cfg "HSC2HSBIN=${workpath}/ghc-bootstrap/lib/ghc-${ghc_bootversion}/hsc2hs-bin"
		if {${ghc_bootversion} eq "6.10.1"} {
			puts $cfg "tflag=\"--template=${workpath}/ghc-bootstrap/lib/ghc-${ghc_bootversion}/hsc2hs-0.67/template-hsc.h\""
		} else {
			puts $cfg "tflag=\"--template=${workpath}/ghc-bootstrap/lib/ghc-${ghc_bootversion}/template-hsc.h\""
		}
		puts $cfg "for arg do"
		puts $cfg "    case \"\$arg\" in"
		puts $cfg "        -c*)	         HSC2HS_EXTRA=;;"
		puts $cfg "        --cc=*)       HSC2HS_EXTRA=;;"
		puts $cfg "	   -t*)	         tflag=;;"
		puts $cfg "        --template=*) tflag=;;"
		puts $cfg "        --)           break;;"
		puts $cfg "    esac"
		puts $cfg "done"
		puts $cfg "exec \$HSC2HSBIN \$tflag \$HSC2HS_EXTRA -I${prefix}/include --lflag=\"-L${prefix}/lib\" \${1+\"\$@\"}"
		close $cfg

		system "chmod +x ${workpath}/ghc-bootstrap/bin/hsc2hs"

		set cfg [open "${worksrcpath}/mk/build.mk" w]
	  	puts $cfg "#"
	  	puts $cfg "# Local configuration overrides for MacPorts"
	  	puts $cfg "#"
	  	puts $cfg "SRC_HC_OPTS += -I${prefix}/include -L${prefix}/lib"
	  	puts $cfg "EXTRA_HSC2HS_OPTS += -I${prefix}/include --lflag=\"-L${prefix}/lib\""
	  	puts $cfg "EXTRA_LD_OPTS += -L${prefix}/lib"
		puts $cfg "EXTRA_CABAL_CONFIGURE_FLAGS += --extra-include-dirs=${prefix}/include"
		puts $cfg "EXTRA_CABAL_CONFIGURE_FLAGS += --extra-lib-dirs=${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.					\
#									\
#		The odd "ac_cv_lib_elf_nlist" environment variable	\
#		is required to avoid including the wrong nlist.h	\
#		header if libelf is installed on the system.

configure.ldflags-append	"-L/usr/lib"
configure.cflags-append		"-I${prefix}/include"
configure.env-append	DYLD_FALLBACK_LIBRARY_PATH=${prefix}/lib	\
			ac_cv_lib_elf_nlist=no

configure.args  --prefix=${destroot}${prefix}				\
		--datadir=${destroot}${prefix}/share/${canonicalname}-${version}	\
		--with-gmp-includes=${prefix}/include			\
		--with-gmp-libraries=${prefix}/lib			\
		--with-ghc='${workpath}/${canonicalname}-bootstrap/bin/ghc'	\
		--with-gcc=${configure.cc}

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

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

# Note that we catch the results of the tests, since usually at least
# one of the tests unexpectedly fails.

set testlog ${canonicalname}-${version}-tests.log

test {
     set testpath    ${worksrcpath}/testsuite-${version}
     catch {system "cd ${testpath} && make stage=2 2>&1 | tee ${workpath}/${testlog}"}
}


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

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

	file rename ${destroot}${prefix}/lib/${canonicalname}-${version}/libffi.a ${destroot}${prefix}/lib/${canonicalname}-${version}/libHsLocalFfi.a
	reinplace s|"ffi"|"HsLocalFfi"| ${destroot}${prefix}/lib/${canonicalname}-${version}/package.conf

	file rename ${destroot}${prefix}/bin/haddock ${destroot}${prefix}/bin/haddock-${canonicalname}

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

	if {[file exists ${workpath}/${testlog}]} {
		set testsavepath ${prefix}/share/${canonicalname}-${version}/tests
		file mkdir  ${destroot}${testsavepath}
		file rename ${workpath}/${testlog} ${destroot}${testsavepath}/${testlog}
		ui_msg "Test results are saved in ${testsavepath}"
	}
}