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PACKAGE :=	@PACKAGE_NAME@
VERSION :=	@PACKAGE_VERSION@
RELEASE :=	@PACKAGE_RELEASE@
PACKAGE_BUGREPORT := @PACKAGE_BUGREPORT@

prefix :=	@prefix@
exec_prefix :=	@exec_prefix@
bindir :=	@bindir@
libdir :=	@libdir@
datadir :=	@datadir@
docdir :=	@docdir@
mandir :=	$(datadir)/man
localedir :=	$(datadir)/locale
etcdir :=	$(subst /usr/etc,/etc,$(prefix)/etc)

INSTALL :=	@INSTALL@
POD2MAN :=	@POD2MAN@
COLUMN :=	@COLUMN@
GETOPT :=	@GETOPT@
CP :=		@CP@
DATE :=		@DATE@
PERL :=		@PERL@
BASH :=		@BASH@
GREP :=		@GREP@
TAIL :=		@TAIL@
TR :=		@TR@
SED :=		@SED@
AWK :=		@AWK@
FIND :=		@FIND@
DIFF :=		@DIFF@
PATCH :=	@PATCH@
MKTEMP :=	@MKTEMP@
MSGMERGE :=     @MSGMERGE@
MSGFMT :=	@MSGFMT@
XGETTEXT :=	@XGETTEXT@
MSGUNIQ :=	@MSGUNIQ@
MSGCAT :=	@MSGCAT@
DIFFSTAT :=	@DIFFSTAT@
RPMBUILD :=	@RPMBUILD@
SENDMAIL :=	@SENDMAIL@

USE_NLS :=	@USE_NLS@
PATCH_WRAPPER := @PATCH_WRAPPER@

CC :=		@CC@
CPPFLAGS +=	@CPPFLAGS@ @DEFS@
CFLAGS +=	@CFLAGS@
LDFLAGS +=	@LDFLAGS@
LIBS :=		@LIBS@
EXEEXT :=	@EXEEXT@

LIBOBJS :=	$(filter $(patsubst lib/%.c,lib/%.o,$(wildcard lib/*.c)), $(patsubst %,lib/%,@LIBOBJS@))
ifneq ($(LIBOBJS),)
CFLAGS += -Ilib
endif

COMPAT_SYMLINKS	:= @COMPAT_SYMLINKS@
COMPAT_PROGRAMS	:= @COMPAT_PROGRAMS@

default: all

#-----------------------------------------------------------------------
DIRT +=		$(shell $(FIND) . -name '*~')
DIRT +=		$(shell $(FIND) . -name '.\#*')

SRC +=		COPYING AUTHORS TODO Makefile.in configure.ac		\
		config/install-sh quilt.spec.in quilt.changes		\
		bash_completion quilt.quiltrc aclocal.m4
DIRT +=		quilt.spec

BIN_IN :=	quilt guards
BIN_SRC :=	$(BIN_IN:%=%.in)
BIN :=		$(BIN_IN)
SRC +=		$(BIN_SRC:%=bin/%) bin/patch-wrapper.in
DIRT +=		$(BIN_IN:%=bin/%) bin/patch-wrapper

QUILT_IN :=	$(patsubst quilt/%.in,%,$(wildcard quilt/*.in))
QUILT_SRC :=	$(QUILT_IN:%=%.in)
QUILT :=	$(QUILT_IN)
SRC +=		$(QUILT_SRC:%=quilt/%)
DIRT +=		$(QUILT_IN:%=quilt/%)

SCRIPTS_IN :=	patchfns parse-patch inspect dependency-graph edmail	\
		remove-trailing-ws

SCRIPTS_SRC :=	$(SCRIPTS_IN:%=%.in)
SCRIPTS :=	$(SCRIPTS_IN)
SRC +=		$(SCRIPTS_SRC:%=quilt/scripts/%)
DIRT +=		$(SCRIPTS_IN:%=quilt/scripts/%)

COMPAT :=	$(COMPAT_PROGRAMS:%=compat/%) $(COMPAT_SYMLINKS:%=compat/%)
SRC +=		$(wildcard compat/*.in) $(wildcard compat/*.sh)
DIRT +=		$(patsubst %.in,%,$(wildcard compat/*.in)) $(COMPAT_SYMLINKS:%=compat/%)

LIB_SRC :=	backup-files.c
LIB :=		backup-files$(EXEEXT)
SRC +=		$(LIB_SRC:%=lib/%)
DIRT +=		lib/backup-files$(EXEEXT) $(LIB_SRC:%.c=lib/%.o)

DOC_IN :=	README
DOC_SRC :=	$(DOC_IN:%=doc/%.in)
DOC :=		$(DOC_IN)
SRC +=		$(DOC_SRC)
SRC +=          doc/main.tex doc/quilt.pdf doc/Makefile doc/quilt.1.in	\
		doc/README.MAIL
DIRT +=		$(DOC_IN:%=doc/%) doc/quilt.1

MAN1 :=		bin/guards.1 doc/quilt.1
DIRT +=		$(MAN1)

LINGUAS :=	fr de ja
PO :=		quilt.pot $(LINGUAS:%=%.po)
SRC +=		$(PO:%=po/%)
DIRT +=         po/*.mo po/*~

SRC +=		$(wildcard test/*.test) test/run test/test.quiltrc
SRC +=		changes2changelog

NON_EXEC_IN :=	doc/quilt.1 doc/README quilt/scripts/patchfns

ISODATE :=	$(shell date +%Y-%m-%d)

TESTS :=	$(wildcard test/*.test)
DIRT +=		test/.depend $(wildcard test/.*.ok)

# Settings for running the uninstalled version of quilt in the source tree:
PATH :=		$(CURDIR)/bin:$(CURDIR)/compat:$(PATH)
QUILT_DIR :=	$(CURDIR)/quilt
QUILT_LIB :=	$(CURDIR)/lib
QUILTRC :=	$(CURDIR)/test/test.quiltrc
export QUILT_DIR QUILT_LIB QUILTRC

#-----------------------------------------------------------------------

all : configure scripts compat $(DOC:%=doc/%) $(MAN1) mofiles

$(LIB:%=lib/%) :: $(LIBOBJS)

ifeq ($(USE_NLS),yes)
mofiles : $(LINGUAS:%=po/%.mo)
else
mofiles :
endif

%.mo : %.po
	$(MSGFMT) --statistics -o $@ $<

%.po : po/quilt.pot
	$(MSGMERGE) -o $@ $@ $^

scripts : $(BIN:%=bin/%) $(QUILT:%=quilt/%) 				\
	  $(SCRIPTS:%=quilt/scripts/%) $(LIB:%=lib/%)			\
	  $(if $(PATCH_WRAPPER),bin/patch-wrapper)

dist : clean $(PACKAGE)-$(VERSION).tar.gz

snapshot : $(PACKAGE)-$(ISODATE).tar.bz2

rpm rpmbuild : $(PACKAGE)-$(VERSION).tar.gz
	$(RPMBUILD) -ta $<

po/quilt.pot: $(filter-out debian/control.in doc/quilt.1.in		\
			   doc/README.in, $(wildcard */*.in)		\
			   		  $(wildcard */*/*.in))
	rm -f po/quilt.pot; touch po/quilt.pot
	for file in $+ ; do						\
	  if test -n "`$(SED) -ne '1{ /@BASH''@/p }' $$file`"; then	\
	    $(BASH) --dump-po-strings $$file ;				\
	  elif test -n "`$(SED) -ne '1{ /@PERL''@/p }' $$file`"; then	\
	    $(XGETTEXT) --from-code=UTF-8 --omit-header --language=Perl	\
			--keyword=_ -o - $$file;			\
	  else								\
	    echo "Don't know how to handle $$file" >&2 ;		\
	    exit 1;							\
	  fi								\
	done								\
	|$(MSGUNIQ)							\
	|$(MSGCAT) --force-po -F - $@ -o $@

doc/README : doc/README.in $(QUILT:%=quilt/%) $(COMPAT)
	@echo "README.in -> README"
	@while read line; do						\
		case "$$line" in					\
		'@REFERENCE''@')					\
			$(MAKE) -s reference				\
			;;						\
		*)							\
			echo $$line					\
			;;						\
		esac ;							\
	done 2>&1 < $< > $@

doc/quilt.1: doc/quilt.1.in $(QUILT:%=quilt/%) $(COMPAT)
	@echo "quilt.1.in -> quilt.1"
	while read line; do						\
	  case "$$line" in						\
	  '@REFERENCE''@')						\
	    $(MAKE) -s reference |					\
	    $(SED) -e 's/^quilt \([^ ]*\)\(.*\)/.IP "\\fB\1\\fP\2 " 4/'	\
		   -e $$'s/^  \\(-[^\t]*\\)\t\\?/.IP "    \\1" 8\\\n/'	\
		   -e $$'s/^  \t\\?//'					\
	    ;;								\
	  *)								\
	    echo "$$line"						\
	    ;;								\
	  esac;								\
	done < $< 2>&1 > $@

.PHONY :: reference
reference : $(QUILT:%=quilt/%) quilt/scripts/patchfns compat
	@unset LANG LC_MESSAGES LC_CTYPE LC_ALL;			\
	for i in $(QUILT);						\
	do								\
		echo;							\
		quilt $$i -h;						\
		echo;							\
	done |								\
	$(SED) -e 's/\$$EDITOR ([^)]*)/$$EDITOR/'			\
	       -e '/^$$/!s/^/  /'					\
	       -e 's/^  Usage: *//'

bin/guards.1 : bin/guards
	$(POD2MAN) $< > $@

$(PACKAGE)-$(VERSION).tar.gz : $(SRC) configure $(PACKAGE).spec
	rm -f $(PACKAGE)-$(VERSION) $@
	ln -s . $(PACKAGE)-$(VERSION)
	tar chf - $(+:%=$(PACKAGE)-$(VERSION)/%) | gzip -9 > $@
	rm -f $(PACKAGE)-$(VERSION)
	@echo "File $@ created."

$(PACKAGE)-$(ISODATE).tar.bz2 : configure $(PACKAGE).spec
	rm -f $(PACKAGE)-$(ISODATE) $@
	ln -s . $(PACKAGE)-$(ISODATE)
	tar chf - $(+:%=$(PACKAGE)-$(ISODATE)/%) | bzip2 -9 > $@
	rm -f $(PACKAGE)-$(ISODATE)
	@echo "File $@ created."

$(PACKAGE).spec : $(PACKAGE).spec.in $(PACKAGE).changes Makefile
	@echo "Generating spec file" ;					\
	set -e ;							\
	changelog="`./changes2changelog $(PACKAGE).changes`" ;		\
	$(AWK) '{ gsub(/@VERSION''@/, "$(VERSION)") ;			\
		  gsub(/@RELEASE''@/, "$(RELEASE)") ;			\
		  gsub(/@CHANGELOG''@/, changelog) ;			\
		  print }' changelog="$$changelog" $< > $@

$(patsubst %.in,%,$(wildcard bin/*.in quilt/*.in quilt/scripts/*.in)) :: Makefile
% :: %.in
	@echo "$< -> $@" >&2
	@$(SED) -e 's:@QUILT_LIB''@:$(libdir)/$(PACKAGE):g'		\
		-e 's:@QUILT_DIR''@:$(datadir)/$(PACKAGE):g'		\
		-e 's:@PERL''@:$(PERL):g'				\
		-e 's:@BASH''@:$(BASH):g'				\
		-e 's:@PATCH''@:$(PATCH):g'				\
		-e 's:@VERSION''@:$(VERSION):g'				\
		-e 's:@RELEASE''@:$(RELEASE):g'				\
		-e 's:@LOCALEDIR''@:$(localedir):g'			\
		-e 's:@DOCSUBDIR''@:$(docdir)/$(PACKAGE)-$(VERSION):g'	\
		$< > $@
	@$(if $(filter-out $<,$(NON_EXEC_IN)),chmod +x $@)

lib/backup-files.o :: Makefile

configure : configure.ac aclocal.m4
	autoconf
	@echo "Please run ./configure"
	@false

Makefile : Makefile.in configure
	@echo "Please run ./configure"
	@false

compat_leftover := $(filter-out $(COMPAT),$(shell $(FIND) compat -maxdepth 1 -type f -perm +111))

.PHONY :: compat
compat :: $(COMPAT)
	$(if $(compat_leftover),rm -f $(compat_leftover))

# VIRTUAL_SYMLINKS creates a shell script that operates similar to
# a symbolic link.  It is used to workaround the way make treats
# symlinks as targets.
#   Usage: $(call VIRTUAL_SYMLINK, source, target)
define VIRTUAL_SYMLINK
	@echo "Generating $(strip $(1)) wrapper" >&2;
	@printf "#!%s\nexec %s "'"$$@"'"\n" $(BASH) $(strip $(1)) > $(2);
endef

# Rule to create compat/<binary> for each binary in $(COMPAT_SYMLINKS)
$(COMPAT_SYMLINKS:%=compat/%) :: Makefile
	$(call VIRTUAL_SYMLINK, \
		$($(shell echo $@ | $(AWK) '{split($$1, ar, "/"); print toupper(ar[2])}')), \
		$(strip $@))
	@chmod +x $(strip $@)

install-main :: scripts
	$(INSTALL) -d $(BUILD_ROOT)$(bindir)
	$(INSTALL) -m 755 $(BIN:%=bin/%) $(BUILD_ROOT)$(bindir)/

	$(INSTALL) -d $(BUILD_ROOT)$(datadir)/$(PACKAGE)
	$(INSTALL) -m 755 $(QUILT:%=quilt/%) $(BUILD_ROOT)$(datadir)/$(PACKAGE)/

	$(INSTALL) -d $(BUILD_ROOT)$(datadir)/$(PACKAGE)/scripts
	$(INSTALL) -m 755 $(patsubst %,quilt/scripts/%,			\
			  $(filter-out patchfns,$(SCRIPTS)))		\
		   $(BUILD_ROOT)$(datadir)/$(PACKAGE)/scripts
	$(INSTALL) -m 644 quilt/scripts/patchfns			\
		   $(BUILD_ROOT)$(datadir)/$(PACKAGE)/scripts
ifneq ($(PATCH_WRAPPER),)
	$(INSTALL) -d $(BUILD_ROOT)$(datadir)/$(PACKAGE)/wrapper
	$(INSTALL) -m 755 bin/patch-wrapper				\
		   $(BUILD_ROOT)$(datadir)/$(PACKAGE)/wrapper/patch
endif
	
	$(INSTALL) -d $(BUILD_ROOT)$(libdir)/$(PACKAGE)
	$(INSTALL) -m 755 $(LIB:%=lib/%) $(BUILD_ROOT)$(libdir)/$(PACKAGE)/

	$(INSTALL) -d $(BUILD_ROOT)$(docdir)/$(PACKAGE)-$(VERSION)/
	$(INSTALL) -m 644 doc/README					\
		   $(BUILD_ROOT)$(docdir)/$(PACKAGE)-$(VERSION)/
	$(INSTALL) -m 644 doc/quilt.pdf doc/README.MAIL			\
		   $(BUILD_ROOT)$(docdir)/$(PACKAGE)-$(VERSION)/

	$(INSTALL) -d $(BUILD_ROOT)$(mandir)/man1
	$(INSTALL) -m 644 $(MAN1) $(BUILD_ROOT)$(mandir)/man1/

	$(INSTALL) -d $(BUILD_ROOT)$(etcdir)
	$(INSTALL) -d $(BUILD_ROOT)$(etcdir)/bash_completion.d
	$(INSTALL) -m 644 bash_completion				\
		   $(BUILD_ROOT)$(etcdir)/bash_completion.d/quilt
	$(INSTALL) -m 644 quilt.quiltrc $(BUILD_ROOT)$(etcdir)/

install-compat: install-compat1 $(COMPAT_SYMLINKS:%=install-compat-symlink-%)
install-compat-symlink-% :: install-compat1
	ln -sf $($(shell echo $* | $(AWK) '{print toupper($$1)}'))	\
	       $(BUILD_ROOT)$(datadir)/$(PACKAGE)/compat/$*

install-compat1:
	rm -rf $(BUILD_ROOT)$(datadir)/$(PACKAGE)/compat
ifneq ($(COMPAT_PROGRAMS)$(COMPAT_SYMLINKS),)
	$(INSTALL) -d $(BUILD_ROOT)$(datadir)/$(PACKAGE)/compat
ifneq ($(COMPAT_PROGRAMS),)
	$(INSTALL) -m 755 $(COMPAT_PROGRAMS:%=compat/%)			\
		   $(BUILD_ROOT)$(datadir)/$(PACKAGE)/compat
endif
endif

install: install-main install-compat

uninstall ::
	rm -rf $(BIN:%=$(BUILD_ROOT)$(bindir)/%)			\
	       $(BUILD_ROOT)$(libdir)/$(PACKAGE)			\
	       $(BUILD_ROOT)$(datadir)/$(PACKAGE)			\
	       $(patsubst %,$(BUILD_ROOT)$(mandir)/man1/%,		\
		   $(notdir $(MAN1)))					\
	       $(BUILD_ROOT)$(etcdir)/bash_completion.d/quilt		\
	       $(BUILD_ROOT)$(etcdir)/quilt.quiltrc			\
	       $(BUILD_ROOT)$(docdir)/$(PACKAGE)-$(VERSION)/

check: $(TESTS:test/%.test=test/.%.ok)
check-all: $(TESTS:test/%.test=check-%)

check-% : test/.%.ok
	@/bin/true

# Only include the test suite dependencies when required
ifneq ($(findstring test,$(MAKECMDGOALS))$(findstring check,$(MAKECMDGOALS)),)
-include test/.depend
endif # (test|check)

quilt/refresh :: quilt/scripts/remove-trailing-ws
quilt/mail :: quilt/scripts/edmail
test/.patch-wrapper.ok : bin/patch-wrapper

# Include a run-time generated list of dependencies for each test case
test/.depend : Makefile $(TESTS)
	@(  printf "%s : bin/quilt quilt/scripts/patchfns $(LIB:%=lib/%) $(COMPAT)\n" $(TESTS); \
	    $(AWK) 'sub(/.*\$$ *quilt /, "")				\
			{ print FILENAME, ":", "quilt/"$$1}' $(TESTS); \
	    $(AWK) 'sub(/.*\<quilt_command /, "") && ($$1 !~ /[^a-z]/)	\
			{ print FILENAME, ":", "quilt/"$$1 }' quilt/*.in; \
	) | sort -u | $(SED) -re 's:^test/(.*)\.test:test/.\1.ok:' > $@

ifneq ($(shell . $(QUILTRC) ;  echo $$QUILT_PATCHES_PREFIX),)
CHECK_ENV := P=patches/; _P=../patches/; export P _P
endif

# Each tests dependencies are stored in test/.depend
ifneq ($(findstring check-,$(MAKECMDGOALS)),)
test/.%.ok : test/%.test FORCE
else
test/.%.ok : test/%.test
endif
	@echo "[$(<F)]"
	@LANG=C;							\
	export LANG ;							\
	$(CHECK_ENV);							\
	cd $(@D);							\
	./run $(<F)
	@touch $@

clean :
	rm -f $(DIRT)

distclean : clean
	rm -f config.log config.status Makefile
	rm -rf autom4te.cache/

ifeq ($(USE_NLS),yes)
install-main ::
	for lang in $(LINGUAS) ; do					\
		dir=$(BUILD_ROOT)$(localedir)/$$lang/LC_MESSAGES;	\
		install -d $$dir;					\
		install -m 644 po/$$lang.mo				\
		    $$dir/quilt.mo ;					\
	done

uninstall ::
	for lang in $(LINGUAS) ; do					\
		dir=$(BUILD_ROOT)$(localedir)/$$lang/LC_MESSAGES;	\
		rm -f $$dir/quilt.mo ;					\
	done
endif

.PHONY :: all install uninstall clean distclean

# Clear the suffix list
.SUFFIXES:
.SUFFIXES: .c .o .in
# Bad gmake, never *ever* try to get a file out of source control by yourself.
%: %,v
%: RCS/%,v
%: RCS/%
%: s.%
%: SCCS/s.%

FORCE: