#!/usr/bin/make -f

ifeq (,$(findstring terse,${DEB_BUILD_OPTIONS}))
export DH_VERBOSE=1
export V=1
export VERBOSE=1
endif

# dietlibc is static, where PIE is currently unsupported
export DEB_BUILD_MAINT_OPTIONS = hardening=+all,-pie
export DEB_CFLAGS_MAINT_APPEND = -Wall -fno-pie
export DEB_LDFLAGS_MAINT_APPEND = -no-pie

# for "debian/rules get-orig-source"
ORIGTGZ_DATE:=          '2016-06-06 15:30Z'
ORIGTGZ_SOURCE:=	-D${ORIGTGZ_DATE}
ORIGTGZ_DESTINATION:=	0.34~cvs20160606

# determine whether we are cross-compiling
DEB_BUILD_GNU_TYPE?=$(shell dpkg-architecture -qDEB_BUILD_GNU_TYPE)
DEB_HOST_GNU_TYPE?=$(shell dpkg-architecture -qDEB_HOST_GNU_TYPE)
ifeq (${DEB_BUILD_GNU_TYPE},${DEB_HOST_GNU_TYPE})
CROSS:=0
else
CROSS:=1
endif

EXTRA_MAKE_FLAGS =

TRIPLET ?= $(shell dpkg-architecture -qDEB_HOST_MULTIARCH)
DEBIANARCH ?= $(shell dpkg-architecture -qDEB_HOST_ARCH)

ARCH =$(DEBIANARCH)
ifeq ($(ARCH),amd64)
  ARCH =x86_64
else
ifeq ($(ARCH),powerpc)
  ARCH =ppc
else
ifeq ($(ARCH),powerpcspe)
  ARCH =ppc
  EXTRA_MAKE_FLAGS += SOFTFPU=1
else
ifeq ($(ARCH),ppc64el)
  ARCH =ppc64le
else
ifeq ($(ARCH),mips64el)
  ARCH =mips64
else
ifeq ($(ARCH),hppa)
  ARCH =parisc
else
ifeq ($(ARCH),arm64)
  ARCH =aarch64
else
ifneq (,$(findstring arm,$(ARCH)))
  ARCH =arm
endif
endif
endif
endif
endif
endif
endif
endif

VERSION =$(shell head -n1 debian/changelog |sed -e 's/.*(\(.*\)).*/\1/')
# Make this a recursively expanded variable, because we only want to
# evaluate it in the very last moment. Also, unset MAKELEVEL/MAKEFLAGS
# because this is not really a recursive make we want here.
ifneq (,$(findstring debug,$(DEB_BUILD_OPTIONS)))
  DIETLIBC_CFLAGS =$(shell env -u MAKELEVEL -u MAKEFLAGS -- make --silent -f debian/find_orig_cflags.mk print_orig_dietlibc_cflags MYARCH='$(ARCH)' DEBUG=1)
else
  DIETLIBC_CFLAGS =$(shell env -u MAKELEVEL -u MAKEFLAGS -- make --silent -f debian/find_orig_cflags.mk print_orig_dietlibc_cflags MYARCH='$(ARCH)')
endif
# Dietlibc doesn't care about CPPFLAGS/LDFLAGS, so add them to CFLAGS
DEBIAN_CFLAGS =$(shell dpkg-buildflags --get CPPFLAGS) $(shell dpkg-buildflags --get CFLAGS) $(shell dpkg-buildflags --get LDFLAGS)

%:
	dh $@

override_dh_auto_configure:
override_dh_auto_build-indep:
override_dh_auto_build-arch:
	@# See Debian bug #523086
	mv -f parisc/strstr.S parisc/strstr.S.disabled
	dh_auto_build -- prefix=/usr/lib/$(TRIPLET)/diet \
		MYARCH='$(ARCH)' VERSION='$(VERSION)' DEBUG=1 \
		$(EXTRA_MAKE_FLAGS) \
		CFLAGS='$(DEBIAN_CFLAGS) $(DIETLIBC_CFLAGS)'

override_dh_auto_test-indep:
override_dh_auto_test-arch:
ifeq (,$(findstring nocheck,$(DEB_BUILD_OPTIONS)))
ifeq (${CROSS},0)
	debian/unittests/suite.sh '$(ARCH)'
endif
endif

override_dh_auto_clean-indep:
override_dh_auto_clean-arch:
	dh_auto_clean -- MYARCH='$(ARCH)'
	rm -f debian/dietlibc-dev.postinst debian/dietlibc-dev.prerm
	@# See Debian bug #523086
	[ ! -f parisc/strstr.S.disabled ] || \
		mv -f parisc/strstr.S.disabled parisc/strstr.S

override_dh_auto_install-indep:
override_dh_auto_install-arch:
	mkdir -p debian/tmp/etc
	dh_auto_install --max-parallel=1 -- prefix=/usr/lib/$(TRIPLET)/diet MYARCH='$(ARCH)' VERSION='$(VERSION)' DEBUG=1 \
		CFLAGS='$(DEBIAN_CFLAGS) $(DIETLIBC_CFLAGS)'
	sed -e 's/|ARCH|/$(ARCH)/g;s/|TRIPLET|/$(TRIPLET)/g;s/|DEBIANARCH|/$(DEBIANARCH)/g' <debian/dietlibc-dev.postinst.in \
	  >debian/dietlibc-dev.postinst
	sed -e 's/|ARCH|/$(ARCH)/g;s/|TRIPLET|/$(TRIPLET)/g;s/|DEBIANARCH|/$(DEBIANARCH)/g' <debian/dietlibc-dev.prerm.in \
	  >debian/dietlibc-dev.prerm

_ANONCVSROOT:=		:pserver:cvs@cvs.fefe.de:/cvs
_CVSEXPORT:=		env CVS_RSH=ssh TZ=UTC cvs -qd ${_ANONCVSROOT} -z9 export
_RESET_TIMES:=          find dietlibc-${ORIGTGZ_DESTINATION} -type f | xargs touch -d${ORIGTGZ_DATE}
_PACK:=			find dietlibc-${ORIGTGZ_DESTINATION} -type f | LC_ALL=C.UTF-8 sort | \
			    paxcpio -oC512 -Hustar -Mdist
get-orig-source:
	rm -rf $@.tmp
	mkdir $@.tmp
	# to get a Debian .orig.tar.gz we need to pull the source from CVS
	cd $@.tmp; ${_CVSEXPORT} ${ORIGTGZ_SOURCE} dietlibc
	# fixup files with CR-LF line endings
	cd $@.tmp; find dietlibc -type f -print0 | \
	    xargs -0 perl -pi -e 's/\r$$//' --
	# then rename and pack it up
	mv $@.tmp/dietlibc $@.tmp/dietlibc-${ORIGTGZ_DESTINATION}
	cd $@.tmp; ${_RESET_TIMES}
	cd $@.tmp; ${_PACK} | xz -7 >../dietlibc_${ORIGTGZ_DESTINATION}.orig.tar.xz
	rm -rf $@.tmp
	# there we are...
	ls -l dietlibc_${ORIGTGZ_DESTINATION}.orig.tar.xz