~ubuntu-branches/debian/lenny/xserver-xorg-video-suncg14/lenny

#!/usr/bin/make -f

# $Id$

# Automagical conversion of autoreconf results into quilt patches.

# Copyright 2006 Eugene Konev

#

# Licensed under the GNU General Public License, version 2.  See the file

# /usr/share/common-licenses/GPL or <http://www.gnu.org/copyleft/gpl.txt>.

# The idea behind this is storing changes produced by autoreconf as a 

# separate patch on quilt stack (on top of stack actually).

# The only usable target here is 'autoreconf`. Other targets are not

# supposed to be called directly. DO NOT invoke them, unless you know what

# you are doing.

# The autoreconf target will check if files with names in $(RECONF_CHECKFILES)

# were changed during patching (from upstream version or from previously

# autoreconfed version) and call actual autoreconfing if they were.

# The actual autoreconfing target (doautoreconf) WILL FAIL after 

# calling autoreconf and pushing changes into quilt stack by design. It

# should never be invoked by automatic build process.

# The proposed use is adding autoreconf into clean's prerequisites before

# xsfclean like:

# - clean: xsfclean

# + clean: autoreconf xsfclean

# This will ensure it is called when you build package with dpkg-buildpackage.

# This dir will be used for producing diff of autoreconfed tree

RECONF_DIR := xsfautoreconf

# This files will be checked for changes

RECONF_CHECKFILES += configure.ac Makefile.am

# This files will not be hardlinked but copied

RECONF_NOLINKFILES += aclocal.m4

# This files/dirs will be pruned after autoreconf run

RECONF_PRUNEFILES += autom4te.cache config.h.in~ aclocal.m4~

# Internal target. Never invoke directly.

stampdir_target+=check.md5sum

$(STAMP_DIR)/check.md5sum:

	dh_testdir

	$(MAKE) -f debian/rules prepare

	for F in $(RECONF_CHECKFILES); do \

	  find . -wholename ./$(STAMP_DIR) -prune -o -name $$F -print | \

	    LC_ALL=C sort | xargs --no-run-if-empty md5sum >>$@; \

	done

# Internal target. Never invoke directly.

$(STAMP_DIR)/clean.md5sum:

	dh_testdir

	$(MAKE) -f debian/rules unpatch

	rm -f $(STAMP_DIR)/check.md5sum

	$(MAKE) -f debian/rules $(STAMP_DIR)/check.md5sum

	mv $(STAMP_DIR)/check.md5sum $@

# Internal target. Never invoke directly.

debian/patches/patched.md5sum:

	dh_testdir

	[ -f $(STAMP_DIR)/clean.md5sum ] || \

	  $(MAKE) -f debian/rules $(STAMP_DIR)/clean.md5sum

	$(MAKE) -f debian/rules patch

	rm -f $(STAMP_DIR)/check.md5sum

	$(MAKE) -f debian/rules $(STAMP_DIR)/check.md5sum

	if ! diff $(STAMP_DIR)/clean.md5sum \

	          $(STAMP_DIR)/check.md5sum > /dev/null; then \

	  $(MAKE) -f debian/rules doautoreconf; \

	else \

	  mv $(STAMP_DIR)/check.md5sum $@; \

	fi

# Internal target. Never invoke directly.

,PHONY: doautoreconf

doautoreconf: patch

	quilt push -a >>$(STAMP_DIR)/log/autoreconf 2>&1 || true

	if quilt applied | grep ^autoreconf.diff$$ > /dev/null; then \

	  quilt pop -a >>$(STAMP_DIR)/log/autoreconf 2>&1; \

	  quilt rename -p autoreconf.diff autoreconf-old.diff \

	       >>$(STAMP_DIR)/log/autoreconf 2>&1; \

	  quilt delete autoreconf-old.diff >>$(STAMP_DIR)/log/autoreconf 2>&1; \

	  quilt push -a >>$(STAMP_DIR)/log/autoreconf 2>&1; \

	fi

	if [ -e $(RECONF_DIR) ]; then \

	  echo "ERROR: $(RECONF_DIR) already exists. Cleanup by hand"; \

	  exit 1; \

	fi

	mkdir -p $(RECONF_DIR)/before

	find . -maxdepth 1 -mindepth 1 ! -wholename ./$(RECONF_DIR) \

	     -a ! -wholename ./debian -a ! -wholename ./patches \

	     -a ! -wholename ./.pc -a ! -wholename ./$(STAMP_DIR) | \

	  xargs -i{} cp -al {} $(RECONF_DIR)/before/

	for F in $(RECONF_PRUNEFILES); do \

	  find $(RECONF_DIR)/before -name $$F -print | \

	    xargs --no-run-if-empty rm -r; \

	done

	cp -al $(RECONF_DIR)/before $(RECONF_DIR)/after

	for F in $(RECONF_NOLINKFILES); do \

	  find . -wholename ./$(RECONF_DIR) -prune -o -wholename ./debian \

	       -prune -o -wholename ./$(STAMP_DIR) -prune -o -name $$F \

	       -print | \

	    xargs --no-run-if-empty -i{} cp --remove-destination {} \

	      $(RECONF_DIR)/after/{}; \

	done

	cd $(RECONF_DIR)/after && autoreconf -v --install && \

	  for F in $(RECONF_PRUNEFILES); do \

	    find . -name $$F -print | \

	      xargs --no-run-if-empty rm -r; \

	  done

	cd $(RECONF_DIR) && diff -Nru before after > autoreconf.diff || true

	quilt import $(RECONF_DIR)/autoreconf.diff \

	      >>$(STAMP_DIR)/log/autoreconf 2>&1

	mv $(STAMP_DIR)/check.md5sum debian/patches/patched.md5sum

	rm -r $(RECONF_DIR) && rm -f patches/autoreconf-old.diff

	@echo 

	@echo "****************************************************************"

	@echo "  This target is made to fail INTENTIONALLY. It should NEVER    "

	@echo "  be invoked during automatic builds.                           "

	@echo 

	@echo "  This target was invoked because you added/removed/changed     "

	@echo "  patches which modify either configure.ac or Makefile.am and,  "

	@echo "  thus, require autoreconf run. And all autoreconfing should    "

	@echo "  happen before uploading.                                      "

	@echo 

	@echo "  (See also debian/xsfbs/xsfbs-autoreconf.mk)                   "

	@echo 

	@echo "  If you see this message, autoreconfing actually SUCCEEDED,    "

	@echo "  and your build should finish successfully, when rerun.        "

	@echo "****************************************************************"

	@echo 

	exit 1;

.PHONY: autoreconf

autoreconf: debian/patches/patched.md5sum patch $(STAMP_DIR)/check.md5sum

	if ! diff $(STAMP_DIR)/check.md5sum \

	          debian/patches/patched.md5sum > /dev/null; then \

	  $(MAKE) -f debian/rules doautoreconf; \

	fi