So I've done some digging into the *.Po problem I mentioned the other day. I get the following warning message: libntp/Makefile.am:18: required file `libntp/*.c' not found and line 18 is: libntp/Makefile.am:libntp_a_LIBADD = @LIBOBJS@ The only other place that LIBOBJS is mentioned is the following lines late in my configure.in: # This is necessary so that .o files in LIBOBJS are also built via # the ANSI2KNR-filtering rules. LIBOBJS=`echo $LIBOBJS|sed 's/\.o /\$U.o /g;s/\.o$/\$U.o/'` I haven't checked to see if this hack is still needed. Anyway, there is no other use of LIBOBJS; it's only touched by AC_REPLACE_FUNCS . Any ideas on what is causing this? FWIW, this seems to have been going on for a while - anybody who has a version of the NTP sources made within the last few years should be able to see this. I'm using automake-1.5 now, if it matters. H