--- a/Makefile
+++ b/Makefile
@@ -1,77 +1,115 @@
 #
 # Makefile for a Video Disk Recorder plugin
 #
-# $Id: Makefile 1.2 2002/12/13 14:54:29 kls Exp $
+# $Id$
 
 # The official name of this plugin.
 # This name will be used in the '-P...' option of VDR to load the plugin.
 # By default the main source file also carries this name.
-#
+
 PLUGIN = calc
 
 ### The version number of this plugin (taken from the main source file):
 
 VERSION = $(shell grep 'static const char \*VERSION *=' $(PLUGIN).c | awk '{ print $$6 }' | sed -e 's/[";]//g')
 
-### The C++ compiler and options:
+### The directory environment:
 
-CXX      ?= g++
-CXXFLAGS ?= -O2 -Wall -Woverloaded-virtual
+# Use package data if installed...otherwise assume we're under the VDR source directory:
+PKGCFG = $(if $(VDRDIR),$(shell pkg-config --variable=$(1) $(VDRDIR)/vdr.pc),$(shell PKG_CONFIG_PATH="$$PKG_CONFIG_PATH:../../.." pkg-config --variable=$(1) vdr))
+LIBDIR = $(call PKGCFG,libdir)
+LOCDIR = $(call PKGCFG,locdir)
+PLGCFG = $(call PKGCFG,plgcfg)
+#
+TMPDIR ?= /tmp
 
-### The directory environment:
+### The compiler options:
 
-DVBDIR = ../../../../DVB
-VDRDIR = ../../..
-LIBDIR = ../../lib
-TMPDIR = /tmp
+export CFLAGS   = $(call PKGCFG,cflags)
+export CXXFLAGS = $(call PKGCFG,cxxflags)
 
-### Allow user defined options to overwrite defaults:
+### The version number of VDR's plugin API:
 
--include $(VDRDIR)/Make.config
+APIVERSION = $(call PKGCFG,apiversion)
 
-### The version number of VDR (taken from VDR's "config.h"):
+### Allow user defined options to overwrite defaults:
 
-VDRVERSION = $(shell grep 'define VDRVERSION ' $(VDRDIR)/config.h | awk '{ print $$3 }' | sed -e 's/"//g')
+-include $(PLGCFG)
 
 ### The name of the distribution archive:
 
 ARCHIVE = $(PLUGIN)-$(VERSION)
 PACKAGE = vdr-$(ARCHIVE)
 
+### The name of the shared object file:
+
+SOFILE = libvdr-$(PLUGIN).so
+
 ### Includes and Defines (add further entries here):
 
-INCLUDES += -I$(VDRDIR)/include -I$(DVBDIR)/include
+INCLUDES +=
 
-DEFINES += -D_GNU_SOURCE
 DEFINES += -DPLUGIN_NAME_I18N='"$(PLUGIN)"'
 
 ### The object files (add further files here):
 
 OBJS = $(PLUGIN).o
 
+### The main target:
+
+all: $(SOFILE) i18n
+
 ### Implicit rules:
 
 %.o: %.c
-	$(CXX) $(CXXFLAGS) -c $(DEFINES) $(INCLUDES) $<
+	$(CXX) $(CXXFLAGS) -c $(DEFINES) $(INCLUDES) -o $@ $<
 
-# Dependencies:
+### Dependencies:
 
-MAKEDEP = g++ -MM -MG
+MAKEDEP = $(CXX) -MM -MG
 DEPFILE = .dependencies
 $(DEPFILE): Makefile
-	@$(MAKEDEP) $(DEFINES) $(INCLUDES) $(OBJS:%.o=%.c) > $@
+	@$(MAKEDEP) $(CXXFLAGS) $(DEFINES) $(INCLUDES) $(OBJS:%.o=%.c) > $@
 
 -include $(DEPFILE)
 
+### Internationalization (I18N):
+
+PODIR     = po
+I18Npo    = $(foreach dir,$(LINGUAS),$(wildcard $(PODIR)/$(dir)*.po))
+I18Nmo    = $(addsuffix .mo, $(foreach file, $(I18Npo), $(basename $(file))))
+I18Nmsgs  = $(addprefix $(DESTDIR)$(LOCDIR)/, $(addsuffix /LC_MESSAGES/vdr-$(PLUGIN).mo, $(notdir $(foreach file, $(I18Npo), $(basename $(file))))))
+I18Npot   = $(PODIR)/$(PLUGIN).pot
+
+%.mo: %.po
+	msgfmt -c -o $@ $<
+
+$(I18Npot): $(wildcard *.c)
+	xgettext -C -cTRANSLATORS --no-wrap --no-location -k -ktr -ktrNOOP --package-name=vdr-$(PLUGIN) --package-version=$(VERSION) --msgid-bugs-address='<see README>' -o $@ `ls $^`
+
+%.po: $(I18Npot)
+	msgmerge -U --no-wrap --no-location --backup=none -q -N $@ $<
+	@touch $@
+
+$(I18Nmsgs): $(DESTDIR)$(LOCDIR)/%/LC_MESSAGES/vdr-$(PLUGIN).mo: $(PODIR)/%.mo
+	install -D -m644 $< $@
+
+.PHONY: i18n
+i18n: $(I18Nmo) $(I18Npot)
+
+install-i18n: $(I18Nmsgs)
+
 ### Targets:
 
-all: libvdr-$(PLUGIN).so
+$(SOFILE): $(OBJS)
+	$(CXX) $(CXXFLAGS) $(LDFLAGS) -shared $(OBJS) -o $@
+
+install-lib: $(SOFILE)
+	install -D $^ $(DESTDIR)$(LIBDIR)/$^.$(APIVERSION)
 
-libvdr-$(PLUGIN).so: $(OBJS)
-	$(CXX) $(CXXFLAGS) -shared $(OBJS) -o $@
-	@cp $@ $(LIBDIR)/$@.$(VDRVERSION)
+install: install-lib install-i18n
 
-dist: clean
+dist: $(I18Npo) clean
 	@-rm -rf $(TMPDIR)/$(ARCHIVE)
 	@mkdir $(TMPDIR)/$(ARCHIVE)
 	@cp -a * $(TMPDIR)/$(ARCHIVE)
@@ -80,4 +118,5 @@
 	@echo Distribution package created as $(PACKAGE).tgz
 
 clean:
+	@-rm -f $(PODIR)/*.mo $(PODIR)/*.pot
 	@-rm -f $(OBJS) $(DEPFILE) *.so *.tgz core* *~