On 3/26/09, Erik <esi...@gmail.com> wrote: > Mike Shal skrev: > > > On 3/26/09, Erik <esi...@gmail.com> wrote: > >> > >> But which is the right way to build that into the Makefile? > > > > Maybe you would be better off doing this in the shell rather than in > > make? > > > I think make can do it just fine (I do not want to have another script > file in the directory). I RTFM and wrote this, which seems to work: > pagecount = $(shell pdfinfo $(1)|egrep "^Pages: *[[:digit:]]+"|sed > "s...@^pages: *\([[:digit:]]\+\)@\1@") > odd = $(shell echo $(pagecount)%2|bc|grep 1) > filled = $(1) $(if $(call odd,$(1)),emptypage.pdf) > > whole.pdf: 1.pdf 2.pdf 3.pdf 4.pdf 5.pdf 6.pdf 7.pdf 8.pdf 9.pdf > > gs -dNOPAUSE -sDEVICE=pdfwrite -sOUTPUTFILE=$@ -dBATCH $(foreach > x,$^,$(call filled,$x)) || rm -f $@ > >
Just to be clear, I wasn't suggesting creating a separate script file. Instead of the single 'gs' command, there would be a for loop and the gs command in the Makefile. But if you already have it working with $(shell) and you're happy with it, I see no reason to switch :) -Mike _______________________________________________ Help-make mailing list Help-make@gnu.org http://lists.gnu.org/mailman/listinfo/help-make
