# -*- makefile -*-
# rules to patch the unpacked files in the source directory
# ---------------------------------------------------------------------------
# various rules to unpack addons and (un)apply patches.
# 	- patch / apply-patches
#	- unpatch / reverse-patches

.NOTPARALLEL:

patchdir	?= debian/patches
series_file	?= $(patchdir)/series

# which patches should be applied?

debian_patches = \
	$(if $(with_linaro_branch),pr49423-revert) \
	$(if $(with_linaro_branch),pr61208-revert) \
	$(if $(with_linaro_branch),pr59593-revert) \
	$(if $(with_linaro_branch),gcc-linaro) \
	$(if $(with_linaro_branch),gcc-linaro-no-local) \

#	svn-updates \

# FIXME: pr61208 requires Linaro 4.9-2014.04.
#	$(if $(with_linaro_branch),pr61208-linaro) \

ifeq ($(with_java),yes)
#  debian_patches += \
#	svn-class-updates
endif

ifneq ($(GFDL_INVARIANT_FREE),yes)
  debian_patches += \
	rename-info-files \
	$(if $(with_linaro_branch),gcc-linaro-doc) \

#	svn-doc-updates \
#	$(if $(with_linaro_branch),,svn-doc-updates) \

else
  debian_patches += \
        $(if $(with_linaro_branch),gcc-dfsg-linaro-doc)
endif
debian_patches += \
	gcc-gfdl-build

#	boehm-gc-nocheck: seems to work on the buildds \

debian_patches += \
	gcc-textdomain \
	gcc-driver-extra-langs

ifneq (,$(filter $(distrelease),etch lenny squeeze wheezy dapper hardy intrepid jaunty karmic lucid))
  debian_patches += gcc-hash-style-both
else
  debian_patches += gcc-hash-style-gnu
endif

debian_patches += \
	libstdc++-pic \
	libstdc++-doclink \
	libstdc++-man-3cxx \
	libstdc++-test-installed \
	libjava-stacktrace \
	libjava-jnipath \
	libjava-sjlj \
	libjava-disable-plugin \
	alpha-no-ev4-directive \
	boehm-gc-getnprocs \
	note-gnu-stack \
	libgomp-omp_h-multilib \
	sparc-force-cpu \
	gccgo-version \
	pr47818 \
	pr49944 \
	gcc-base-version \
	libgo-testsuite \
	gcc-target-include-asm \
	libgo-revert-timeout-exp \
	$(if $(with_linaro_branch),,arm-sanitizer) \
	libgo-setcontext-config \
	pr57211 \
	kfreebsd-unwind \
	libgcc-no-limits-h \
	kfreebsd-boehm-gc \
	hurd-boehm-gc \
	pr49847 \
	libffi-m68k \
	m68k-picflag \
	sys-auxv-header \
	go-use-gold \
	go-testsuite \
	pr57363 \
	$(if $(with_linaro_branch),pr59744) \
	$(if $(with_linaro_branch),aarch64-call-frame-info) \
	$(if $(with_linaro_branch),aarch64-abi-fix) \
	fix-ffi_call_VFP-with-no-VFP-argument \
	$(if $(with_linaro_branch),pr60034) \
	pr61106 \
	pr61126 \
	pr57653 \
	libitm-aarch64 \
	pr61046 \
	pr61336 \
	gcc-setmultilib-fix \
	pr61841 \
	pr62032 \
	pr59586 \

# FIXME: still necessary for cross building the native compiler?
#	gcc-auto-build \

#	$(if $(filter yes, $(DEB_CROSS)),,gcc-print-file-name) \
#	libstdc++-nothumb-check \
# TODO: update ...
#	gcc-cloog-dl \
#	libjava-rpath \

hardening_patches =
ifeq ($(with_ssp)-$(with_ssp_default),yes-yes)
  hardening_patches += gcc-default-ssp
  hardening_patches += gcc-default-format-security
endif
ifeq ($(distribution),Ubuntu)
  ifneq (,$(findstring gcc-4, $(PKGSOURCE)))
    hardening_patches += \
	gcc-default-fortify-source \
	gcc-default-relro \
	testsuite-hardening-format \
	testsuite-hardening-printf-types \
	testsuite-hardening-updates
  endif
endif

# FIXME 4.5: Drop and adjust symbols files
ifneq (,$(findstring 4.4, $(PKGSOURCE)))
  debian_patches += pr39491
endif

ifeq ($(with_ada),yes)
  debian_patches += \
	ada-driver-check \
	ada-gcc-name \
	ada-default-project-path \
	ada-symbolic-tracebacks \
	ada-library-project-files-soname \
	ada-ppc64

  ifeq ($(biarch64),yes)
    debian_patches += \
	ada-nobiarch-check
  endif

  ifeq ($(with_libgnat),yes)
    debian_patches += \
	ada-link-lib \
	ada-libgnatvsn \
	ada-libgnatprj \
	ada-acats
    ifeq ($(with_gnat_zcx)-$(with_gnat_sjlj),yes-yes)
      debian_patches += \
	ada-sjlj
    endif
  endif

  ifeq ($(DEB_TARGET_ARCH_OS),hurd)
    debian_patches += \
        gcc_ada_gcc-interface_Makefile.in \
	ada-s-osinte-gnu.adb \
	ada-s-osinte-gnu.ads \
	ada-s-taprop-gnu.adb
  endif

  debian_patches += \
	ada-link-shlib
endif

ifeq ($(with_d),yes)
  debian_patches += \
	gdc-4.8 \
	gdc-versym-cpu \
	gdc-versym-os \
	gdc-frontend-posix
#	gdc-updates \
#	gdc-multiarch
  ifneq ($(GFDL_INVARIANT_FREE),yes)
    debian_patches += gdc-4.8-doc
  else
    debian_patches += gdc-texinfo
  endif
  ifeq ($(with_libphobos),yes)
    debian_patches += gdc-libphobos-build
  else
    debian_patches += gdc-driver-nophobos
  endif
  ifeq (,$(filter $(DEB_TARGET_ARCH),amd64 i386))
    debian_patches += disable-gdc-tests
  endif
else
  debian_patches += gcc-d-lang
endif

ifeq ($(DEB_TARGET_ARCH),alpha)
  debian_patches += alpha-ieee
  ifneq ($(GFDL_INVARIANT_FREE),yes)
    debian_patches += alpha-ieee-doc
  endif
endif

ifeq ($(DEB_TARGET_ARCH_CPU),amd64)
  debian_patches += libjava-testsuite
endif

ifneq (,$(findstring $(DEB_TARGET_ARCH),arm armel armhf))
  debian_patches += libjava-armel-unwind
endif

ifeq ($(DEB_TARGET_ARCH),armhf)
 debian_patches += gcj-arm-mode
else ifeq ($(DEB_TARGET_ARCH),armel)
  ifneq (,$(filter $(distrelease),lucid maverick natty oneiric precise))
    debian_patches += gcj-arm-mode
  endif
endif

ifeq ($(DEB_TARGET_ARCH),m68k)
  debian_patches += m68k-ada
  debian_patches += m68k-revert-pr45144
  debian_patches += pr52714
  debian_patches += pr58369
  debian_patches += pr52306
endif

ifeq ($(DEB_TARGET_ARCH),powerpcspe)
  debian_patches += powerpc_remove_many
  debian_patches += powerpc_nofprs
endif

#debian_patches += link-libs

# all patches below this line are applied for gcc-snapshot builds as well

ifeq ($(single_package),yes)
  debian_patches =
endif

debian_patches += gcc-sysroot
debian_patches += goarch-aarch64
debian_patches += libgo-explicit-reservation
debian_patches += \
	ada-kfreebsd \

ifeq ($(with_softfloat),yes)
  debian_patches += arm-multilib-soft-float
else ifeq ($(multilib),yes)
  ifneq (,$(filter $(distrelease),lucid maverick natty oneiric precise))
    debian_patches += arm-multilib-softfp$(if $(filter yes,$(DEB_CROSS)),-cross)
  else
    debian_patches += arm-multilib-soft$(if $(filter yes,$(DEB_CROSS)),-cross)
  endif
endif
debian_patches += arm-multilib-defaults

ifeq ($(DEB_CROSS),yes)
  debian_patches += cross-fixes
  ifeq ($(with_deps_on_target_arch_pkgs),yes)
    debian_patches += cross-ma-install-location
  else
    debian_patches += cross-install-location
    ifeq ($(with_d),yes)
      debian_patches += gdc-cross-install-location
    endif
  endif
endif

ifeq ($(DEB_TARGET_ARCH_OS),hurd)
  debian_patches += hurd-changes
endif

debian_patches += gcc-ice-hack gcc-ice-apport
#FIXME
#debian_patches += gold-and-ld

debian_patches += libjava-fixed-symlinks

ifneq (,$(filter $(DEB_TARGET_ARCH), mips mipsel))
  # timeouts on the buildd's, Debian
  debian_patches += libstdc++-no-testsuite
else ifeq ($(distribution),Ubuntu)
  # timeouts on the buildd's, Ubuntu only
  ifneq (,$(filter $(DEB_TARGET_ARCH), armel ia64))
    debian_patches += libstdc++-no-testsuite
  endif
endif
debian_patches += ada-mips
debian_patches += libffi-ro-eh_frame_sect

debian_patches += gcc-multiarch
ifeq ($(with_multiarch_lib),yes)
  ifneq ($(single_package),yes)
    debian_patches += libjava-multiarch
  endif
endif
debian_patches += libjava-nobiarch-check
debian_patches += config-ml
ifneq ($(single_package),yes)
  ifeq ($(with_multiarch_cxxheaders),yes)
    debian_patches += g++-multiarch-incdir
  endif
endif
ifeq ($(DEB_CROSS),yes)
  debian_patches += cross-no-locale-include
endif
ifeq ($(biarch64),yes)
  ifeq ($(DEB_CROSS),yes)
    debian_patches += cross-biarch
  endif
endif
debian_patches += gcc-multilib-multiarch

ifneq (,$(filter $(derivative),Ubuntu))
  ifeq (,$(filter $(distrelease),dapper hardy intrepid jaunty karmic lucid maverick))
    debian_patches += gcc-as-needed
  endif
else # Debian
    #debian_patches += gcc-as-needed
endif
debian_patches += mips-fix-loongson2f-nop
ifeq ($(derivative),Ubuntu)
  ifeq ($(DEB_TARGET_ARCH),ppc64)
    debian_patches += gcc-ppc64-O3
  endif
endif
debian_patches += libgomp-kfreebsd-testsuite

series_stamp = $(stampdir)/02-series-stamp
series: $(series_stamp)
$(series_stamp):
	echo $(strip $(addsuffix .diff,$(debian_patches))) \
	  | sed -r 's/  +/ /g' | tr " " "\n" > $(series_file)
ifneq (,$(strip $(hardening_patches)))
  ifneq ($(trunk_build),yes)
	echo $(strip $(addsuffix .diff,$(hardening_patches))) \
	  | sed -r 's/  +/ /g' | tr " " "\n" >> $(series_file)
  endif
endif
	sed -r 's/(.)$$/\1 -p1/' -i $(series_file)
	touch $@

autotools_files = $(addprefix ./,$(foreach file,$(shell lsdiff --no-filename \
	$(foreach patch,$(debian_patches),$(patchdir)/$(patch).diff) \
	| sed -r 's:[^/]+/src/:src/:' | sort | uniq),$(shell echo $(file) \
	| egrep 'configure\.(ac|in)|Makefile\.(am|in)|acinclude.m4')))

autoconf_version = 2.64
ifeq ($(trunk_build),yes)
  # The actual version depends on the build-dependencies set by
  # variable AUTO_BUILD_DEP in rules.conf.  Here, we assume the
  # correct version is installed.
  #autoconf_version =
endif

# FIXME: the auto* stuff is done every time for every subdir, which
# leads to build errors. Idea: record the auto* calls in the patch
# files (AUTO <dir> <auto-command with options>) and run them separately,
# maybe only once per directory).
$(patch_stamp): $(unpack_stamp) $(series_stamp)
	QUILT_PATCHES=$(patchdir) \
	  quilt --quiltrc /dev/null push -a || test $$? = 2

ifneq (,$(filter svn-updates, $(debian_patches)))
	awk '/^EOF/ {exit} p==1 {print} /EOF$$/ {p=1}' \
	  $(patchdir)/svn-updates.diff > src/LAST_UPDATED
endif

	if ! test -f stamps/autotools_files ; then touch stamps/autotools_files ; fi

	cd $(srcdir)/fixincludes && ./genfixes

	for f in $(autotools_files) ; \
	  do case $$f in \
	    */classpath/m4/acinclude.m4) \
	        : ;; \
	    */configure.*|*/acinclude.m4) \
		if grep ^"$$(md5sum $$f)"$$ stamps/autotools_files >/dev/null ; \
		  then echo "Skipping already regenerated file $$f." ; \
		else \
		  echo "Running autoconf$(autoconf_version) in $$(dirname $$f)..." ; \
		  dir="$(CURDIR)"; cd $(CURDIR)/$$(dirname $$f) \
		    && AUTOM4TE=/usr/bin/autom4te$(autoconf_version) autoconf$(autoconf_version) \
		    && cd $$dir \
		    && echo "$$(md5sum $$f)" >> stamps/autotools_files ; \
		fi ;; \
	    */Makefile.*) ;; \
	    *) echo "Unknown file: $$f"; false; \
	  esac; \
	done

	for i in $(debian_patches) $(hardening_patches); do \
	  echo -e "\n$$i:" >> pxxx; \
	  sed -n 's/^# *DP: */  /p' $(patchdir)/$$i.diff >> pxxx; \
	done
#	-$(srcdir)/move-if-change pxxx $@
	mv pxxx $@

unpatch:
	QUILT_PATCHES=$(patchdir) \
	  quilt --quiltrc /dev/null pop -a -R || test $$? = 2
	rm -rf .pc
	for f in $(autotools_files); do \
	  rm -f $$(echo $$f | sed -r 's/\.(ac|am|in)$$//'); \
	done

update-patches: $(series_stamp)
	export QUILT_PATCHES=$(patchdir); \
	export QUILT_REFRESH_ARGS="--no-timestamps --no-index -pab"; \
	export QUILT_DIFF_ARGS="--no-timestamps --no-index -pab"; \
	while quilt push; do quilt refresh; done

patch: $(patch_stamp)
.PHONY: patch series quilt autotools