# Copying and distribution of this file, with or without modification,
# are permitted in any medium without royalty provided the copyright
# notice and this notice are preserved.  This file is offered as-is,
# without any warranty.

PREFIX = /usr
BIN = /bin
BINDIR = $(PREFIX)$(BIN)
DATA = /share
VARDIR = /var
LOGDIR = $(VARDIR)/log
DATADIR = $(PREFIX)$(DATA)
DOCDIR = $(DATADIR)/doc
INFODIR = $(DATADIR)/info
LICENSEDIR = $(DATADIR)/licenses

PKGNAME = cerberus-logging

TEXI2DVI = texi2dvi
CC       = gcc -std=gnu99

CPPFLAGS = -D'LOGDIR="$(LOGDIR)"'
CFLAGS   = -Os
LDFLAGS  =

SYSTEMS = btmp utmp lastlog syslog audit
DEFAULT_SYSTEMS = utmp

L_btmp =
L_utmp =
L_lastlog =
L_syslog =
L_audit = -laudit


.PHONY: default
default: $(DEFAULT_SYSTEMS) info

.PHONY: all
all: $(SYSTEMS) doc

.PHONY: btmp utmp lastlog syslog audit
btmp: bin/log-login-btmp
utmp: bin/log-login-utmp
lastlog: bin/log-login-lastlog
syslog: bin/log-login-syslog
audit: bin/log-login-audit

bin/log-login-%: obj/log-login-%.o obj/common.o
	@mkdir -p bin
	$(CC) -o $@ $^ $(L_$*) $(LDFLAGS)

obj/%.o: src/%.c src/*.h
	@mkdir -p obj
	$(CC) -c -o $@ $< $(CPPFLAGS) $(CFLAGS)

.PHONY: doc
doc: info pdf ps dvi

.PHONY: info
info: cerberus-logging.info
%.info: info/%.texinfo
	makeinfo "$<"

.PHONY: pdf
pdf: cerberus-logging.pdf
%.pdf: info/%.texinfo info/fdl.texinfo
	@mkdir -p obj/pdf
	cd obj/pdf && texi2pdf ../../$< < /dev/null
	mv obj/pdf/$@ $@

.PHONY: dvi
dvi: cerberus-logging.dvi
%.dvi: info/%.texinfo info/fdl.texinfo
	@mkdir -p obj/dvi
	cd obj/dvi && $(TEXI2DVI) ../../$< < /dev/null
	mv obj/dvi/$@ $@

.PHONY: ps
ps: cerberus-logging.ps
%.ps: info/%.texinfo info/fdl.texinfo
	@mkdir -p obj/ps
	cd obj/ps && texi2pdf --ps ../../$< < /dev/null
	mv obj/ps/$@ $@


.PHONY: install
install: install-base install-default-systems install-info

.PHONY: install-all
install-all: install-base install-systems install-doc

.PHONY: install-base
install-base: install-logging install-license

.PHONY: install-logging
install-logging:
	mkdir -p -- "$(DESTDIR)$(DATADIR)/$(PKGNAME)"
	cp -- src/logging "$(DESTDIR)$(DATADIR)/$(PKGNAME)/logging"

.PHONY: install-license
install-license:
	mkdir -p -- "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)"
	cp -- COPYING LICENSE "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)"

.PHONY: install-systems
install-systems: $(foreach S,$(SYSTEMS),install-$(S))

.PHONY: install-default-systems
install-default-systems: $(foreach S,$(DEFAULT_SYSTEMS),install-$(S))

.PHONY: install-btmp
install-btmp: bin/log-login-btmp
	mkdir -p -- "$(DESTDIR)$(BINDIR)"
	cp -- bin/log-login-btmp "$(DESTDIR)$(BINDIR)/log-login-btmp"

.PHONY: install-utmp
install-utmp: bin/log-login-utmp
	mkdir -p -- "$(DESTDIR)$(BINDIR)"
	cp -- bin/log-login-utmp "$(DESTDIR)$(BINDIR)/log-login-utmp"

.PHONY: install-lastlog
install-lastlog: bin/log-login-lastlog
	mkdir -p -- "$(DESTDIR)$(BINDIR)"
	cp -- bin/log-login-lastlog "$(DESTDIR)$(BINDIR)/log-login-lastlog"

.PHONY: install-syslog
install-syslog: bin/log-login-syslog
	mkdir -p -- "$(DESTDIR)$(BINDIR)"
	cp -- bin/log-login-syslog "$(DESTDIR)$(BINDIR)/log-login-syslog"

.PHONY: install-audit
install-audit: bin/log-login-audit
	mkdir -p -- "$(DESTDIR)$(BINDIR)"
	cp -- bin/log-login-audit "$(DESTDIR)$(BINDIR)/log-login-audit"

.PHONY: install-doc
install-doc: install-info install-pdf install-ps install-dvi

.PHONY: install-info
install-info: cerberus-logging.info
	mkdir -p -- "$(DESTDIR)$(INFODIR)"
	cp -- cerberus-logging.info "$(DESTDIR)$(INFODIR)/$(PKGNAME).info"

.PHONY: install-pdf
install-pdf: cerberus-logging.pdf
	mkdir -p -- "$(DESTDIR)$(DOCDIR)"
	cp -- cerberus-logging.pdf "$(DESTDIR)$(DOCDIR)/$(PKGNAME).pdf"

.PHONY: install-ps
install-ps: cerberus-logging.ps
	mkdir -p -- "$(DESTDIR)$(DOCDIR)"
	cp -- cerberus-logging.ps "$(DESTDIR)$(DOCDIR)/$(PKGNAME).ps"

.PHONY: install-dvi
install-dvi: cerberus-logging.dvi
	mkdir -p -- "$(DESTDIR)$(DOCDIR)"
	cp -- cerberus-logging.dvi "$(DESTDIR)$(DOCDIR)/$(PKGNAME).dvi"


.PHONY: uninstall
uninstall:
	-rm -- "$(DESTDIR)$(DATADIR)/$(PKGNAME)/logging"
	-rmdir -- "$(DESTDIR)$(DATADIR)/$(PKGNAME)"
	-rm -- $(foreach S,$(SYSTEMS),"$(DESTDIR)$(BINDIR)/log-login-$(S)")
	-rm -- "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)/COPYING"
	-rm -- "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)/LICENSE"
	-rmdir -- "$(DESTDIR)$(LICENSEDIR)/$(PKGNAME)"
	-rm -- "$(DESTDIR)$(INFODIR)/$(PKGNAME).info"
	-rm -- "$(DESTDIR)$(DOCDIR)/$(PKGNAME).pdf"
	-rm -- "$(DESTDIR)$(DOCDIR)/$(PKGNAME).ps"
	-rm -- "$(DESTDIR)$(DOCDIR)/$(PKGNAME).dvi"


.PHONY: clean
clean:
	-rm -fr -- bin obj *.su src/*.su