Cleanup and templatize Makefile

.latexmkrc

 # -*- cperl -*-
 # latexmkrc
 $builddir = $ENV{'BUILDDIR'};
-$target   = $ENV{'TARGET'};
 $bibdirs  = $ENV{'BIBDIRS'};
+$target   = $ENV{'TARGET'};
 $type     = $ENV{'TYPE'};
 $viewer   = $ENV{'VIEWER'};
 

Makefile

 BASENAME = demo
 
 BUILDDIR = build
+VARIANTS = presentation handout notes
 TARGETS  = $(BASENAME)-presentation.pdf \
            $(BASENAME)-handout.pdf      \
            $(BASENAME)-notes.pdf
@@ -24,38 +25,20 @@ clean:
 distclean:
 	rm -rf $(BUILDDIR)
 
-$(BASENAME)-presentation.pdf presentation presentation.build: setup
-	$(call LATEXMKV,presentation,)
-presentation.view: setup
-	$(call LATEXMKV,presentation,-pv)
-presentation.preview: setup
-	$(call LATEXMKV,presentation,-pvc)
-presentation.clean: setup
-	$(call LATEXMKV,presentation,-c)
-presentation.distclean: setup
-	$(call LATEXMKV,presentation,-C)
+define TEMPLATE =
+$(BASENAME)-$(strip $(1)).pdf $(strip $(1)).build $(1): setup
+	$(call LATEXMKV,$(strip $(1)),)
+$(strip $(1)).view: setup
+	$(call LATEXMKV,$(strip $(1)),-pv)
+$(strip $(1)).preview: setup
+	$(call LATEXMKV,$(strip $(1)),-pvc)
+$(strip $(1)).clean: setup
+	$(call LATEXMKV,$(strip $(1)),-c)
+$(strip $(1)).distclean: setup
+	$(call LATEXMKV,$(strip $(1)),-C)
+endef
 
-$(BASENAME)-handout.pdf handout handout.build: setup
-	$(call LATEXMKV,handout,)
-handout.view: setup
-	$(call LATEXMKV,handout,-pv)
-handout.preview: setup
-	$(call LATEXMKV,handout,-pvc)
-handout.clean: setup
-	$(call LATEXMKV,handout,-c)
-handout.distclean: setup
-	$(call LATEXMKV,handout,-C)
-
-$(BASENAME)-notes.pdf notes notes.build: setup
-	$(call LATEXMKV,notes,)
-notes.view: setup
-	$(call LATEXMKV,notes,-pv)
-notes.preview: setup
-	$(call LATEXMKV,notes,-pvc)
-notes.clean: setup
-	$(call LATEXMKV,notes,-c)
-notes.distclean: setup
-	$(call LATEXMKV,notes,-C)
+$(foreach variant, $(VARIANTS), $(eval $(call TEMPLATE, $(variant))))
 
 # dynamic targets
 %.build: setup
@@ -73,7 +56,7 @@ notes.distclean: setup
 
 setup: .FORCE | $(BUILDDIR)/
 
-.PHONY: all presentation handout notes view preview clean distclean .FORCE
+.PHONY: all presentation handout notes clean distclean .FORCE
 
 .EXPORT_ALL_VARIABLES:
 TEXINPUTS := :.:$(TEXDIRS)