+# 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 before
+# running "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
+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
+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
+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_TARBALL = ${DISTNAME}-boot-${PLATFORM}.tar.bz2
+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}" && \
+ ${GMAKE} bootstrapping-files && \
+ ${PHASE_MSG} "Building bootstrapping compiler for ${PKGNAME}" && \
+ ${GMAKE} all_ghc_stage2 && \
+ ${PHASE_MSG} "Building bootstrapping toolkit for ${PKGNAME}" && \
+ ${GMAKE} inplace/bin/ghc-pkg && \
+ ${GMAKE} 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