--- a/Makefile	Sun Sep 06 23:52:30 2009 +0200
+++ b/Makefile	Mon Sep 07 00:03:22 2009 +0200
@@ -4,24 +4,37 @@
 
 bin_SCRIPTS = log
 
+.PHONY:	all check install clean
 
-all:	$(bin_SCRIPTS)
+
+all:	check $(bin_SCRIPTS)
 
 install:	all
-	install -d $(DESTDIR)/$(sysconfdir)
-	test -f $(DESTDIR)/$(sysconfdir)/config.pm \
-		|| install -m644 config.pm $(DESTDIR)/$(sysconfdir)/config.pm
-	install -d $(bindir)
-	install -m755 $(bin_SCRIPTS) $(DESTDIR)/$(bindir)/
+	install -d -m 0755 $(DESTDIR)/$(sysconfdir)
+	tools/chkconfig $(DESTDIR)/$(sysconfigdir)/config.pm \
+		&& install -m 644 config.pm $(DESTDIR)/$(sysconfdir)/config.pm
+	tools/signconfig $(DESTDIR)/$(sysconfigdir)/config.pm
+	install -d -m 0755 $(bindir)
+	install -m 0755 $(bin_SCRIPTS) $(DESTDIR)/$(bindir)/
 
-	install -d $(DESTDIR)/usr/share/perl5/Logbuch
-	install -m644 Logbuch/HG.pm $(DESTDIR)/usr/share/perl5/Logbuch/
+	install -d -m 0755 $(DESTDIR)/usr/share/perl5/Logbuch
+	install -m 0644 Logbuch/HG.pm $(DESTDIR)/usr/share/perl5/Logbuch/
 
 	cd $(DESTDIR)/$(bindir) && ln -sf log logbuch
 
 clean:
 	-rm -f $(bin_SCRIPTS)
 
+check:
+	@-rm -f .e
+	@cat modules | while read; do \
+		perl -M$$REPLY -e 'print " $$'"$$REPLY"'::VERSION\n"' &>/dev/null \
+		&& continue; \
+		echo "MISSING perl library: \"$$REPLY\""; \
+		touch .e; \
+	done
+	@rm .e 2>/dev/null && false || true
+
 %:	%.pl
 	perl -c $<
 	cp -f $< $@