#!/usr/bin/make -f

# Uncomment this to turn on verbose mode. 
#export DH_VERBOSE=1


DEB_BUILD_ARCH_OS ?= $(shell dpkg-architecture -qDEB_BUILD_ARCH_OS)
DEB_BUILD_GNU_TYPE ?= $(shell dpkg-architecture -qDEB_BUILD_GNU_TYPE)
DEB_HOST_GNU_TYPE  ?= $(shell dpkg-architecture -qDEB_HOST_GNU_TYPE)
DEB_HOST_MULTIARCH ?= $(shell dpkg-architecture -qDEB_HOST_MULTIARCH)

# Disabled because this FTBFS with multiple jobs (bug 620973)
#ifneq (,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
#         NUMJOBS = $(patsubst parallel=%,%,$(filter parallel=%,$(DEB_BUILD_OPTIONS)))
#         MAKEFLAGS += -j$(NUMJOBS)
#endif

# Add here any variable or target overrides you need.
# where sources are
DEB_SRCDIR = $(CURDIR)/src

# no check for this software
#DEB_MAKE_CHECK_TARGET :=

CCP=mpicc
export CFLAGS_COMMON = -O3 -fPIC -I. -I/usr/include/mpi \
			-Drestrict=__restrict \
			-DCOMMON_FILE_COMPRESS_GZ \
			-DCOMMON_FILE_COMPRESS_BZ2 \
			-DCOMMON_FILE_COMPRESS_LZMA \
			-DCOMMON_PTHREAD \
			-DSCOTCH_PTHREAD_NUMBER=2 \
			-DCOMMON_RANDOM_FIXED_SEED \
			-DSCOTCH_RENAME -DSCOTCH_RENAME_PARSER
export LDFLAGS_COMMON = -pthread -lz -lbz2 -llzma -lm -lrt

# hurd does not have POSIX time and therefore needs sys/time.h to define struct timeval
# hurd does not support pthread_setaffinity_np (-DSCOTCH_PTHREAD_AFFINITY_LINUX)
ifeq ($(DEB_BUILD_ARCH_OS),hurd)
  CFLAGS_COMMON += -DHAVE_SYS_TIME_H
else
  CFLAGS_COMMON += -DCOMMON_PTHREAD_AFFINITY_LINUX
endif

# By default, halt on test (check) failures. But,
# - hurd times out on buildd during build-time checks
# - m68k segfaults inside the qemu emulator used for builds
# - powerpcspe segfaults on test_scotch_graph_order in INTSIZE64
# so don't halt on test failures on these arches.
# In fact don't run tests at all on hurd.
ifeq ($(DEB_HOST_ARCH_OS),hurd)
  HALT_ON_TEST_ERROR = no
  SKIP_TESTS = yes
else ifeq ($(DEB_HOST_ARCH),m68k)
  HALT_ON_TEST_ERROR = no
else ifeq ($(DEB_HOST_ARCH),powerpcspe)
  HALT_ON_TEST_ERROR = no
else
  HALT_ON_TEST_ERROR = yes
endif


DEB_DBG_PACKAGE_scotch = scotch-dbg
DEB_DBG_PACKAGE_ptscotch = ptscotch-dbg
DEB_DBG_PACKAGE_libscotch-6.0 = libscotch-dbg
DEB_DBG_PACKAGE_libptscotch-6.0 = libptscotch-dbg

DEB_STRIPPED_UPSTREAM_VERSION = $(shell echo $(DEB_UPSTREAM_VERSION) | sed -n -e 's/\.dfsg.*$$//p')
SCOTCH_VERSION=$(DEB_STRIPPED_UPSTREAM_VERSION)

INTSIZE_VERS := $(shell echo "int int32 int64 long")

export OMPI_MCA_plm_rsh_agent=/bin/false                #workaround to start MPI-applications in chroot

patch-stamp:
	QUILT_PATCHES=debian/patches quilt push -a || test $$? = 2
	touch $@

build: build-arch
build-arch: build-arch-stamp
build-arch-stamp: patch-stamp
	dh_testdir
	dh_prep

	for v in $(INTSIZE_VERS); do \
	   mkdir -p $(CURDIR)/$$v; \
	   mkdir -p $(CURDIR)/$$v/bin; \
	   mkdir -p $(CURDIR)/$$v/lib; \
	   mkdir -p $(CURDIR)/$$v/include; \
	   mkdir -p $(CURDIR)/$$v/share/man/man1; \
	done

# Do no run test in //
#(cd src && $(MAKE) ptcheck prefix=$(CURDIR)/$$v)

	set -e; \
	for v in $(INTSIZE_VERS); do \
	   echo "compiling for $$v"; \
	   cp debian/Makefile_$$v.inc src/Makefile.inc; \
	   (cd src && $(MAKE) realclean prefix=$(CURDIR)/$$v); \
	   (cd src && $(MAKE) scotch ptscotch prefix=$(CURDIR)/$$v); \
	   (cd src && $(MAKE) esmumps ptesmumps prefix=$(CURDIR)/$$v); \
	   echo "check for $$v"; \
	   if [ "x$(SKIP_TESTS)" != "xyes" ]; then \
	     if [ "x$(HALT_ON_TEST_ERROR)" = "xno" ]; then \
	       (cd src && LD_LIBRARY_PATH=$(CURDIR)/src/check/../../lib:$(LD_LIBRARY_PATH) $(MAKE) check prefix=$(CURDIR)/$$v) || /bin/true; \
	     else \
	       (cd src && LD_LIBRARY_PATH=$(CURDIR)/src/check/../../lib:$(LD_LIBRARY_PATH) $(MAKE) check prefix=$(CURDIR)/$$v); \
	     fi; \
	   fi; \
	   echo "install for $$v"; \
	   (cd src && $(MAKE) install prefix=$(CURDIR)/$$v); \
	   mv $$v/bin/gbase $$v/bin/scotch_gbase; \
	   mv $$v/bin/gmap $$v/bin/scotch_gmap; \
	   mv $$v/bin/gpart $$v/bin/scotch_gpart; \
	   rm -rf lib; \
	   rm -f src/Makefile.inc; \
	done

	touch $@

build-indep:

install: build
#	find . -name libscotch.so | xargs ls -l; \
#	Install [par]metis-compatibility symlinks
	for v in $(INTSIZE_VERS); do \
	   (cd $$v/lib && ln -s libscotchmetis.a libmetis.a); \
	   (cd $$v/lib && ln -s libscotchmetis.so libmetis.so); \
	   (cd $$v/lib && ln -s libptscotchparmetis.a libparmetis.a); \
	   (cd $$v/lib && ln -s libptscotchparmetis.so libparmetis.so); \
	done

#	add suffix to {int32,int64,long}/bin/*
	for file in $(shell ls int32/bin); do \
	   (cd int32/bin && mv $$file $$file-int32); \
	done
	for file in $(shell ls int64/bin); do \
	   (cd int64/bin && mv $$file $$file-int64); \
	done
	for file in $(shell ls long/bin); do \
	   (cd long/bin && mv $$file $$file-long); \
	done

#	Fix lintian warnings for undefined macro in man pages
	perl -pi -e 's|\.\"|\.\\\"|' int/share/man/man1/*.1
##	mv int/share/man/man1/gbase.1 int/share/man/man1/scotch_gbase.1
#       Rename gmap to avoid clash with package gmap
	mv int/share/man/man1/gmap.1 int/share/man/man1/scotch_gmap.1
	mv int/share/man/man1/gpart.1 int/share/man/man1/scotch_gpart.1
#	Fix lintian missing man pages
	cp debian/scotch_binaries.1 int/share/man/man1
	cp debian/ptscotch_esmumps.1 int/share/man/man1
	cp debian/dgscat.1 int/share/man/man1
	cp debian/dgscat.1 int/share/man/man1/gscat.1
#	Fix lintian warnings
	find int/share/man/man1/ -name *.1 | xargs -r gzip -n9
	for file in scotch_esmumps scotch_gbase acpl amk_grf mcv; do \
	   (cd int/share/man/man1 && ln -sf scotch_binaries.1.gz $$file.1.gz); \
	done
	cd int/share/man/man1 && ln -sf dgscat.1.gz dggath.1.gz
	for file in $(shell ls int/bin); do \
	   (cd int/share/man/man1 && ln -sf $$file.1.gz $$file-int32.1.gz); \
	   (cd int/share/man/man1 && ln -sf $$file.1.gz $$file-int64.1.gz); \
	   (cd int/share/man/man1 && ln -sf $$file.1.gz $$file-long.1.gz); \
	done
#
#       Add "#include <cstdio>" to main [pt]scotch.h
	find . -name \*scotch.h | xargs perl -pi -e "s|\/\*\+ Version flags|\#ifdef \_\_cplusplus\n\#include \<cstdio\>\n\#else\n\#include \<stdio.h\>\n\#endif\n\n\/\*\+ Version flags|"


clean:
	dh_testdir
	dh_clean
	for v in $(INTSIZE_VERS); do \
	   (if [ -d $$v ]; then rm -rf $$v; fi); \
	done
	for file in scotch_binaries.1 ptscotch_esmumps.1 gscat.1; do \
	   rm -f int/share/man/man1/$file; \
	done
	cp debian/Makefile.inc src/
	make -C src/check realclean
	make -C src realclean
	rm -f src/Makefile.inc
	QUILT_PATCHES=debian/patches quilt pop -a -R || test $$? = 2
	rm -f patch-stamp
	rm -f build-arch-stamp
	rm -rf .pc lib bin include
	find src -name \*.so | xargs -r rm
	find src -name \*.a | xargs -r rm

binary-indep: install
	dh_testdir -i
	dh_testroot -i
	dh_installdirs -i
	dh_install -i
	dh_installdocs -i
	dh_installchangelogs -i
	dh_lintian -i
	dh_link -i
	dh_compress -i -XMakefile -Xcc -Xinp
	dh_fixperms -i
	dh_installdeb -i
	dh_gencontrol -i
	dh_md5sums -i
	dh_builddeb -i

binary-arch: install
	dh_testdir -a
	dh_testroot -a
	dh_installdirs -a
	dh_install -a
	dh_installdocs -a
	dh_installchangelogs -a
	dh_lintian -a
	dh_link -a
	dh_strip -pscotch --dbgsym-migration='scotch-dbg (<< 6.0.4.dfsg1-8~)'
	dh_strip -pptscotch --dbgsym-migration='ptscotch-dbg (<< 6.0.4.dfsg1-8~)'
	dh_strip -plibscotch-6.0 --dbgsym-migration='libscotch-dbg (<< 6.0.4.dfsg1-8~)'
	dh_strip -plibptscotch-6.0 --dbgsym-migration='libptscotch-dbg (<< 6.0.4.dfsg1-8~)'
	dh_makeshlibs -a
	dh_compress -a -X.pdf
	dh_fixperms -a
	dh_installdeb -a
	dh_shlibdeps -a
	dh_gencontrol -a
	dh_md5sums -a
	dh_builddeb -a

binary: binary-indep binary-arch

.PHONY: binary binary-arch binary-indep clean