# -*- 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 = \
	svn-updates \
	$(if $(with_linaro_branch),gcc-linaro) \
	$(if $(with_linaro_branch),gcc-linaro-no-macros) \

#	svn-updates \

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

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

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

else
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 \
	libgo-setcontext-config \
	gcc-auto-build \
	kfreebsd-unwind \
	kfreebsd-boehm-gc \
	hurd-boehm-gc \
	libitm-no-fortify-source \
	sparc64-biarch-long-double-128 \
	gcc-ia64-bootstrap-ignore \
	gotools-configury \
	go-escape-analysis \
	go-escape-analysis2 \
	go-escape-analysis3 \
	go-escape-analysis4 \
	go-escape-analysis5 \
	go-escape-analysis6 \
	gccgo-sendfile-fix \
	pr66368 \
	pr67280 \
	pr67508 \
	pr67143 \
	pr67589 \
	pr67590 \

ifneq (,$(filter $(distrelease),squeeze wheezy dapper lucid precise quantal raring saucy trusty))
  debian_patches += pr65913-workaround-old
else
  debian_patches += pr65913-workaround
endif

ifeq ($(libstdcxx_abi),new)
  debian_patches += libstdc++-functexcept
endif

# don't apply yet, test it first ...
#	go-escape-analysis \
#	go-escape-analysis2 \
#	go-escape-analysis3 \
#	go-escape-analysis4 \
#	go-escape-analysis5 \
#	go-escape-analysis6 \

#	$(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
  ifeq (,$(filter $(distrelease),dapper hardy lucid maverick natty oneiric precise quantal raring saucy trusty))
    hardening_patches += gcc-default-ssp-strong
  endif
endif
ifeq ($(distribution),Ubuntu)
  ifneq (,$(findstring gcc-5, $(PKGSOURCE)))
    hardening_patches += \
	gcc-default-fortify-source \
	gcc-default-relro \
	testsuite-hardening-format \
	testsuite-hardening-printf-types \
	testsuite-hardening-updates \
	testsuite-glibc-warnings
  endif
endif

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

debian_patches += ada-arm
debian_patches += ada-hurd
debian_patches += ada-kfreebsd
debian_patches += ada-revert-pr63225

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

	# FIXME: needs update
	#ada-symbolic-tracebacks \

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

  ifeq ($(with_libgnat),yes)
    debian_patches += \
	ada-link-lib \
	ada-libgnatvsn \
	ada-libgnatprj \
	ada-gnattools-cross \
	ada-acats
    #ifneq (,$(filter $(build_type), build-cross cross-build-cross))
	debian_patches += libgnatprj-cross-hack
    #endif
    ifneq (,$(filter $(distrelease),lucid precise))
      debian_patches += \
	libgnatprj-link
    endif
  endif
  ifeq ($(with_gnatsjlj),yes)
    debian_patches += \
	ada-sjlj
  endif

  debian_patches += ada-link-shlib
endif

ifeq ($(with_d),yes)
  debian_patches += \
	gdc-5 \
	gdc-versym-cpu \
	gdc-versym-os \
	gdc-frontend-posix \
	gdc-config-ml \
	gdc-base-version
#	gdc-updates
#	gdc-multiarch
  ifneq ($(GFDL_INVARIANT_FREE),yes)
    debian_patches += gdc-5-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

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
endif

ifeq ($(DEB_TARGET_ARCH),powerpcspe)
  debian_patches += powerpc_remove_many
  debian_patches += powerpc_nofprs
  # fix-powerpcspe.diff only partially applied upstream
  debian_patches += fix-powerpcspe
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 += \
	sys-auxv-header \
	libcilkrts-targets \
	go-use-gold \

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

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

debian_patches += gcc-ice-dump
debian_patches += gcc-ice-apport

debian_patches += libjava-fixed-symlinks

debian_patches += libffi-ro-eh_frame_sect

debian_patches += gcc-multiarch$(if $(with_linaro_branch),-linaro)
ifeq ($(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 ($(with_multiarch_cxxheaders),yes)
    debian_patches += g++-multiarch-incdir
    debian_patches += canonical-cpppath
  endif
endif
ifneq (,$(filter $(build_type), build-cross cross-build-cross))
  debian_patches += cross-no-locale-include
  debian_patches += cross-biarch
  ifeq ($(with_d),yes)
    debian_patches += gdc-cross-biarch
  endif
endif
debian_patches += gcc-multilib-multiarch

ifneq (,$(filter $(derivative),Ubuntu))
  ifeq (,$(filter $(distrelease),dapper hardy intrepid jaunty karmic lucid maverick))
    debian_patches += gcc-as-needed
  endif
else # Debian
    #debian_patches += gcc-as-needed
endif
ifeq ($(DEB_TARGET_ARCH),mipsel)
  debian_patches += mips-fix-loongson2f-nop
endif
debian_patches += libgomp-kfreebsd-testsuite
debian_patches += go-testsuite
# FIXME: Still relevant?
#debian_patches += pr61106

# Ada patches needed for both the stable package and snapshot builds
debian_patches += ada-749574
debian_patches += ada-mips
debian_patches += ada-ppc64
debian_patches += ada-mips64
debian_patches += ada-bootstrap-compare

ifeq ($(DEB_TARGET_ARCH_OS), illumos)
	debian_patches += illumos-multiarch
	debian_patches += illumos-spec
	debian_patches += illumos-use_libgcj_bc
	debian_patches += illumos-pragma-align
	debian_patches += illumos-fclone-functions
	debian_patches += illumos-strict-calling-conventions
	debian_patches += illumos-boehm-gc
endif

# don't remove, this is regularly overwritten, see PR sanitizer/63958.
#debian_patches += libasan-sparc

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

	: # only needed when we have changes, and currently fails with autogen 5.18
	#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