# $NetBSD: Makefile,v 1.42 2008/07/07 14:58:00 kristerw Exp $

DISTNAME=	ghc-${VERSION}
VERSION=	7.4.1
CATEGORIES=	lang
MASTER_SITES=	http://www.haskell.org/ghc/dist/${VERSION}/
MAINTAINER=	kristerw@NetBSD.org
HOMEPAGE=	http://www.haskell.org/ghc/
COMMENT=	Compiler for the functional language Haskell
LICENSE=	modified-bsd

DISTFILES=	${DISTNAME}-src.tar.bz2
DISTFILES+=	${DISTNAME}-boot-i386-unknown-freebsd8.0.tar.bz2
DISTFILES+=	${DISTNAME}-boot-i386-unknown-netbsdelf6.99.1.tar.bz2
DISTFILES+=	${DISTNAME}-boot-powerpc-apple-darwin9.8.0.tar.bz2

.for i in ${DISTFILES:M*-boot-*}
SITES.${i}=	http://static.cielonegro.org/archive/
.endfor

PKG_DESTDIR_SUPPORT=	user-destdir

# Unregisterised HC packages are platform-dependent C sources. Yes,
# they are C sources but are totally non-portable. We have to create
# more HC packages to support more platforms. Note that those packages
# are built with integer-simple, not integer-gmp, to reduce some
# complexity by not depending on the GMP. The resulting registerised
# GHC uses integer-gmp so this won't be a problem.
#
# If you want to build HC packages yourself, follow instructions in
# the ./TODO file.
ONLY_FOR_PLATFORM= NetBSD-*-i386 FreeBSD-*-i386 Darwin-*-powerpc

# We must provide the real path to gcc to the ./configure script,
# because GHC has a runtime dependency on it. Aren't there any ways
# better than this?
.include "../../mk/bsd.prefs.mk"
.include "../../mk/compiler.mk"
.if empty(CCPATH)
WARNINGS+= "This package depends on pkgsrc's undocumented variable \
CCPATH but it disappeared somehow."
WARNINGS+= "Using hard-coded /usr/bin/gcc as the C compiler..."
CONFIGURE_ARGS+= --with-gcc=/usr/bin/gcc
.else
CONFIGURE_ARGS+= --with-gcc=${CCPATH}
.endif

USE_TOOLS+=	autoconf date gmake gtar perl perl:run
CONFIGURE_ENV+=	PerlCmd=${PERL5:Q}

# We don't want to extract all of the DISTFILEs.
EXTRACT_ONLY=	${DISTNAME}-src.tar.bz2

CONFIGURE_ARGS += \
	--build=${PLATFORM} \
	--host=${PLATFORM} \
	--target=${PLATFORM} \
	--prefix=${PREFIX} \
	--mandir=${PREFIX}/${PKGMANDIR} \
	--with-gmp-includes=${PREFIX}/include \
	--with-gmp-libraries=${PREFIX}/lib \
	--with-iconv-includes=${PREFIX}/include \
	--with-iconv-libraries=${PREFIX}/lib

# Build an unregisterised bootstrap compiler and install it directly
# into the .buildlink directory. But we can't use "make install"
# because we don't build it in a standard way (./configure && make).
#
# To install it, we just copy ghc and ghc-pkg from
# "work/bootstrap/ghc-${VERSION}/inplace/bin" to
# "${BUILDLINK_DIR}/bin". Note that in-place ghc isn't usable until we
# run "ghc-pkg recache".

.if ${MACHINE_ARCH} == "i386" && ${OPSYS} == "NetBSD"
BOOTSTRAP_BUILD_MK = ${PKGDIR}/files/bootstrap-bsd.mk
BOOTSTRAP_CAPI_C   = ${PKGDIR}/files/capi-wrappers-netbsd-i386.c
BOOTSTRAP_TARBALL  = ${DISTNAME}-boot-i386-unknown-netbsdelf6.99.1.tar.bz2
PLATFORM           = i386-unknown-netbsd

.elif ${MACHINE_ARCH} == "i386" && ${OPSYS} == "FreeBSD"
BOOTSTRAP_BUILD_MK = ${PKGDIR}/files/bootstrap-bsd.mk
BOOTSTRAP_CAPI_C   = ${PKGDIR}/files/capi-wrappers-freebsd-i386.c
BOOTSTRAP_TARBALL  = ${DISTNAME}-boot-i386-unknown-freebsd8.0.tar.bz2
PLATFORM           = i386-unknown-freebsd

.elif ${MACHINE_ARCH} == "powerpc" && ${OPSYS} == "Darwin"
BOOTSTRAP_BUILD_MK = ${PKGDIR}/files/bootstrap.mk
BOOTSTRAP_CAPI_C   = ${PKGDIR}/files/capi-wrappers-darwin-powerpc.c
BOOTSTRAP_TARBALL  = ${DISTNAME}-boot-i386-unknown-darwin9.8.0.tar.bz2
PLATFORM           = powerpc-apple-darwin
# Existence of libelf makes LeadingUnderscore being "NO", which is
# incorrect for this platform. See ghc-6.12.1/aclocal.m4
# (FP_LEADING_UNDERSCORE)
CONFLICTS=	libelf-[0-9]*

.else
PKG_FAIL_REASON+=	"internal error: unsupported platform"
.endif

BOOTSTRAP_MAIN_C=	${PKGDIR}/files/bootstrap-main.c

pre-configure: ${WRKDIR}/stamp-bootstrap-ghc

${WRKDIR}/stamp-autoreconf:
	${RUN} cd ${WRKSRC} && \
		${PHASE_MSG} "Regenerating configuration scripts for ${PKGNAME}" && \
		${PERL5} boot && \
		${TOUCH} ${.TARGET}

${WRKDIR}/stamp-prepare-bootstrap: ${WRKDIR}/stamp-autoreconf
	${RUN} cd ${WRKDIR} && \
		${PHASE_MSG} "Preparing bootstrapping compiler for ${PKGNAME}" && \
		${RM} -rf bootstrap && \
		${MKDIR} bootstrap && \
		${GTAR} -cf - ${DISTNAME} | ${GTAR} -C bootstrap -xf - && \
		${CP} ${BOOTSTRAP_MAIN_C} bootstrap/${DISTNAME}/rts/bootstrap-main.c && \
		${CP} ${BOOTSTRAP_CAPI_C} bootstrap/${DISTNAME}/rts/capi-wrappers.c  && \
		${TOUCH} ${.TARGET}

${WRKDIR}/stamp-configure-hc-boot: ${WRKDIR}/stamp-prepare-bootstrap
	${RUN} cd ${WRKDIR}/bootstrap/${DISTNAME} && \
		${PHASE_MSG} "Configuring bootstrapping compiler for ${PKGNAME}" && \
		${SETENV} ${CONFIGURE_ENV} ./configure --enable-hc-boot --with-ghc="" ${CONFIGURE_ARGS} && \
		${TOUCH} ${.TARGET}

${WRKDIR}/stamp-extract-hc: ${WRKDIR}/stamp-configure-hc-boot
	${RUN} cd ${WRKDIR}/bootstrap && \
		${PHASE_MSG} "Extracting bootstrap HC archive for ${PKGNAME}" && \
		if ${TEST} "`${DATE} '+%Y%m%d%H%M'`" -le 200001010000; then \
			${FAIL_MSG} "Adjust your system clock: `${DATE}`"; \
		fi && \
		${FIND} ${DISTNAME} -type d -o -type f | ${XARGS} ${TOUCH} -t 200001010000 && \
		${GTAR} -jxf ${DISTDIR}/${BOOTSTRAP_TARBALL} && \
		(cd ${DISTNAME} && ${SH} mkfiles) && \
		${TOUCH} ${.TARGET}

${WRKDIR}/stamp-rewrite-hc-paths: ${WRKDIR}/stamp-extract-hc
	${RUN} cd ${WRKDIR}/bootstrap/${DISTNAME} && \
		${PHASE_MSG} "Rewriting source paths in bootstrapping compiler for ${PKGNAME}" && \
		${SED} -e "s#\\[\\[PREFIX\\]\\]#${PREFIX}#g" ${BOOTSTRAP_BUILD_MK} > mk/build.mk && \
		for c in libraries/*/configure; do \
			(cd `${DIRNAME} $$c` && ${SETENV} ${CONFIGURE_ENV} ${SH} configure ${CONFIGURE_ARGS}); \
		done && \
		for i in inplace/lib/package.conf.d/*.conf \
				 */package.conf.inplace \
				 */*/package-data.mk \
				 */*/*/package-data.mk \
				 */*/*/*/package-data.mk; do \
			${SED} -e "s#\\[\\[PREFIX\\]\\]#${PREFIX}#g" \
				   -e "s#\\[\\[GHC_SOURCE_PATH\\]\\]#`${PWD_CMD}`#g" $$i > $$i.tmp; \
			${MV} -f $$i.tmp $$i; \
		done && \
		${TOUCH} -r inplace/lib/package.conf.d \
					inplace/lib/package.conf.d/*.conf \
					*/package.conf.inplace \
					*/*/package-data.mk \
					*/*/*/package-data.mk \
					*/*/*/*/package-data.mk \
					compiler/stage?/build/Config.hs && \
		${TOUCH} ${.TARGET}

${WRKDIR}/stamp-bootstrap-ghc: ${WRKDIR}/stamp-rewrite-hc-paths
	${RUN} cd ${WRKDIR}/bootstrap/${DISTNAME} && \
		${PHASE_MSG} "Creating bootstrapping files for ${PKGNAME}" && \
		${BUILD_MAKE_CMD} bootstrapping-files && \
		${PHASE_MSG} "Building bootstrapping compiler for ${PKGNAME}" && \
		${BUILD_MAKE_CMD} all_ghc_stage2 && \
		${PHASE_MSG} "Building bootstrapping toolkit for ${PKGNAME}" && \
		${BUILD_MAKE_CMD} inplace/bin/ghc-pkg && \
		${BUILD_MAKE_CMD} inplace/lib/unlit && \
		inplace/bin/ghc-pkg recache && \
		${CP} -f inplace/bin/ghc-stage2 ${BUILDLINK_DIR}/bin/ghc && \
		${CP} -f inplace/bin/ghc-pkg ${BUILDLINK_DIR}/bin/ghc-pkg && \
		${TOUCH} ${.TARGET}

do-configure:
	${RUN} cd ${WRKSRC} && \
		${SETENV} ${CONFIGURE_ENV} ./configure ${CONFIGURE_ARGS}
# We need to tell the libraries/terminfo/configure that our ncurses is
# in a non-standard path. Without that, the resulting GHC tries to
# link programs by executing ld(1) without passing it -L${PREFIX}/lib.
	${RUN} ${ECHO} "libraries/terminfo_CONFIGURE_OPTS += \
		--configure-option=--with-curses-includes=${PREFIX}/include \
		--configure-option=--with-curses-libraries=${PREFIX}/lib" >> ${WRKSRC}/mk/build.mk
# The ghc compiler does normally split the generated asm files into small
# parts before sending them to gcc, to enable the linker to eliminate
# unused parts.  This does however not play nice with the pkgsrc
# framework, and the result is that the build takes more than 5 times
# as long than when the files are not split.  See
#    http://mail-index.netbsd.org/tech-pkg/2006/07/30/0005.html
# for a description of the problem.
# Disable file splitting until pkgsrc gets improved.
	${RUN} ${ECHO} "SplitObjs = NO" >> ${WRKSRC}/mk/build.mk
# If we don't explicitly disable HsColour, PLIST gets changed
# depending on whether we have installed it or not.
	${RUN} ${ECHO} "HSCOLOUR_SRCS = NO" >> ${WRKSRC}/mk/build.mk

# Substitutions for INSTALL and DEINSTALL.
FILES_SUBST+=	DISTNAME=${DISTNAME}

# There is an unused script which don't pass the portability test.
CHECK_PORTABILITY_SKIP+=	distrib/prep-bin-dist-mingw

# GHC currently *requires* ${PREFIX}/lib to be in
# "/etc/ld-elf.so.conf". See
# http://hackage.haskell.org/trac/ghc/ticket/2933
CHECK_SHLIBS_SUPPORTED= 	no

# I guess pdcurses works well but not tested.
USE_NCURSES=	yes
.include "../../devel/ncurses/buildlink3.mk"

BUILD_DEPENDS+=	docbook-xsl-[0-9]*:../../textproc/docbook-xsl
BUILDLINK_DEPMETHOD.libxslt = build
.include "../../converters/libiconv/buildlink3.mk"
.include "../../devel/gmp/buildlink3.mk"
.include "../../textproc/libxslt/buildlink3.mk"
.include "../../mk/pthread.buildlink3.mk"
.include "../../mk/bsd.pkg.mk"