#!/usr/bin/make -f
include /usr/share/dpkg/architecture.mk
include /usr/share/dpkg/pkg-info.mk

export CHEZ_VERSION = $(shell echo '$(DEB_VERSION_UPSTREAM)' | sed -e 's/[+~].*$$//')
export DH_VERBOSE = 1
export DEB_BUILD_MAINT_OPTIONS = hardening=+all

DOPACKAGES = $(shell dh_listpackages)

# Translate the host architecture (the arch we're building for) to
# terms the build system understands.
ifeq ($(DEB_HOST_GNU_TYPE), x86_64-linux-gnu)
    export HOST_MACHINE_TYPE = ta6le
else ifeq ($(DEB_HOST_GNU_TYPE), i386-linux-gnu)
    export HOST_MACHINE_TYPE = ti3le
else ifeq ($(DEB_HOST_GNU_TYPE), i686-linux-gnu)
    export HOST_MACHINE_TYPE = ti3le
else ifeq ($(DEB_HOST_GNU_TYPE), arm-linux-gnueabihf)
    export HOST_MACHINE_TYPE = arm32le
else ifeq ($(DEB_HOST_GNU_TYPE), arm-linux-gnueabi)
    export HOST_MACHINE_TYPE = arm32le
else
    $(error Cannot yet build for $(DEB_HOST_GNU_TYPE))
endif
ifeq ($(origin CC),default)
CC := $(DEB_HOST_GNU_TYPE)-gcc
LD := $(DEB_HOST_GNU_TYPE)-ld
endif

# Avoid using /usr/bin/scheme to run stex
INSTALLED_CHEZ=/usr/bin/chezscheme

LIBDIR=usr/lib/csv$(CHEZ_VERSION)/$(HOST_MACHINE_TYPE)

fix_conf = sed -i -e 's,^ncursesLib=.*,ncursesLib=-lncurses -lz -llz4,g'

%:
	dh $@

override_dh_auto_configure:
ifeq ($(DEB_BUILD_GNU_TYPE),$(DEB_HOST_GNU_TYPE))
	if [ ! -d boot/$(HOST_MACHINE_TYPE) ]; then \
          cp -r /usr/lib/csv$(CHEZ_VERSION)/$(HOST_MACHINE_TYPE) boot/$(HOST_MACHINE_TYPE); \
          touch boot/$(HOST_MACHINE_TYPE)/.debian-cleanup; \
	fi
	CC=$(CC) ./configure --workarea=build -m=$(HOST_MACHINE_TYPE) --installprefix=/usr --temproot=$(shell pwd)/debian/tmp ZLIB= LZ4=
else
	./configure --workarea=crossbuilder --threads --installprefix=/usr --temproot=$(shell pwd)/debian/tmp ZLIB= LZ4=
	$(fix_conf) crossbuilder/c/Mf-config
	make -C crossbuilder
	./workarea $(HOST_MACHINE_TYPE)
	mv $(HOST_MACHINE_TYPE) build
	echo "ncursesLib=-lncurses -lz -llz4" >> build/c/Mf-config
	echo 'Kernel=$${KernelO}' >> build/c/Mf-config
	echo 'KernelLinkDeps=$${KernelOLinkDeps}' >> build/c/Mf-config
	echo 'KernelLinkLibs=$${KernelOLinkLibs}' >> build/c/Mf-config
endif
	$(fix_conf) build/c/Mf-config
	(cd build/s; ln -s ../../s/primdata.ss primdata.ss)
	cp -a release_notes/ build/
	cp -a csug/ build/
	(echo "\def\INSERTREVISIONMONTHSPACEYEAR{}"; cat csug/copyright.stex) > \
	    build/csug/copyright.stex

override_dh_auto_test:
ifeq (fullcheck,$(filter fullcheck,$(DEB_BUILD_OPTIONS)))
	dh_auto_test
endif

override_dh_auto_build-arch:
ifeq ($(DEB_BUILD_GNU_TYPE),$(DEB_HOST_GNU_TYPE))
	make -C build
else
	$(eval BUILD_MACHINE_TYPE = $(shell awk -F= '/^m=/ {print $$2}' crossbuilder/Mf-install))
	make -C build/s -f Mf-cross m=$(BUILD_MACHINE_TYPE) xm=$(HOST_MACHINE_TYPE) base=$(CURDIR)/crossbuilder
	make -C build/c CC=$(CC) LD=$(LD)
endif

override_dh_auto_build-indep:
ifneq (,$(filter chezscheme-doc,$(DOPACKAGES)))
	make -C build/release_notes Scheme=$(INSTALLED_CHEZ) STEXLIB=/usr/share/stex
	make -C build/csug Scheme=$(INSTALLED_CHEZ) STEXLIB=/usr/share/stex
endif

override_dh_auto_install-arch:
ifeq ($(DEB_BUILD_GNU_TYPE),$(DEB_HOST_GNU_TYPE))
	make install
else
	make -C build -f ../crossbuilder/Mf-install m=$(HOST_MACHINE_TYPE)
endif
	sed -e 's,^\\fI\(Chez Scheme\)\\fP,chezscheme \- Chez Scheme,' \
	    -e 's,^\\fI\(Petite Chez Scheme\)\\fP,petite \- Petite Chez Scheme,' \
	    build/scheme.1 > build/chezscheme.1

override_dh_auto_install-indep:
ifneq (,$(filter chezscheme-doc,$(DOPACKAGES)))
	make -C build/release_notes Scheme=$(INSTALLED_CHEZ) STEXLIB=/usr/share/stex INSTALL=../installsh \
	    installdir=$(shell pwd)/debian/tmp/usr/share/doc/chezscheme-doc/ \
	    install
	make -C build/csug Scheme=$(INSTALLED_CHEZ) STEXLIB=/usr/share/stex INSTALL=../installsh \
	    installdir=$(shell pwd)/debian/tmp/usr/share/doc/chezscheme-doc/html/ \
	    install
	rm -f debian/tmp/usr/share/doc/chezscheme-doc/html/canned/*-orig.png
	ln -sf ../csug.css debian/tmp/usr/share/doc/chezscheme-doc/html/canned/csug.css
endif

ifneq (,$(filter chezscheme,$(DOPACKAGES)))
override_dh_link:
	dh_link $(LIBDIR)/scheme.boot $(LIBDIR)/chezscheme.boot \
	        $(LIBDIR)/scheme.boot $(LIBDIR)/scheme-script.boot \
	        /usr/share/man/man1/chezscheme.1.gz \
	        /usr/share/man/man1/petite.1.gz \
	        /usr/share/man/man1/chezscheme.1.gz \
	        /usr/share/man/man1/scheme-script-chez.1.gz
endif

override_dh_auto_clean:
	rm -f Makefile csug/Makefile release_notes/Makefile
	dh_auto_clean
	if [ -f boot/$(HOST_MACHINE_TYPE)/.debian-cleanup ]; then \
	  rm -rf boot/$(HOST_MACHINE_TYPE); \
	fi

override_dh_installdocs:
	dh_installdocs -A NOTICE

override_dh_installchangelogs:
	dh_installchangelogs LOG

override_dh_installman-arch:
	dh_installman build/chezscheme.1