Makefile.in: fix BSD make incompatible $(wildcard ...) in stamp targets

BSD make does not have a wildcard function -- it treats the argument
as a variable name with spaces, generating warnings. Use $(POFILES)
in messages/ (already defined) and drop the dependency list in
templates/ (stamp file is sufficient for a clean build).

Author: thegushi

messages/Makefile.in

@@ -115,7 +115,7 @@ doinstall: .converted.stamp mofiles
 	done
 
 # Use a stamp file to track conversion, so it only happens once
-.converted.stamp: $(wildcard */LC_MESSAGES/*.po)
+.converted.stamp: $(POFILES)
 	../scripts/convert_to_utf8 -d .
 	touch .converted.stamp
 

templates/Makefile.in

@@ -60,7 +60,7 @@ INSTALL_PROGRAM=$(INSTALL) -m $(EXEMODE)
 all: converttemplates
 
 # Use a stamp file to track conversion, so it only happens once
-.converted.stamp: $(wildcard */LC_MESSAGES/*.po) $(wildcard */*.html) $(wildcard */*.txt)
+.converted.stamp:
 	../scripts/convert_to_utf8 -d .
 	touch .converted.stamp