Re: No rule to make target

[Federico Bruni]

Dear Bert

Thank you for the pointer!
I read somewhere on Stackoverflow that VPATH may be used for targets as 
well.. can't find the link now.

Anyway, I've just tried to apply what I understood from below article, 
but I'm still getting the same error.
What I've changed in the Makefile:

- I've added $(addprefix) to include the out/ path in the target file 
name
- I've added out/ in the pattern rule, even if I suspect it's not 
necessary
- I've removed the full paths in the pandoc command


$ cat Makefile
VPATH = \
 $CURDIR/src

.PHONY: all book test
all: book

out/%.pdf: %.md
pandoc -f markdown -o $@ $<;

# Find the PDF files to be built
book: $(addprefix out/, $(addsuffix .pdf, $(notdir $(basename 
$(wildcard src/*.md)))))

# Check target list
test:
echo "$(addprefix out/, $(addsuffix .pdf, $(notdir $(basename 
$(wildcard src/*.md)))))"



Il giorno gio 29 mar 2018 alle 10:01, Bert Wesarg 
<"bert.wesarg"@googlemail.com> ha scritto:
> Dear Frederico,
>
> I just read (again) this:
>
> http://make.mad-scientist.net/papers/how-not-to-use-vpath/
>
> you should do this too.
>
> Best,
> Bert
>
> On Thu, Mar 29, 2018 at 9:21 AM, Federico Bruni <address@hidden> 
> wrote:
> >  Hi
> >
> >  I'm having problem with a simple Makefile which uses a pattern rule 
> > to
> >  generate PDF files from markdown files.
> >  What I'm doing wrong?
> >
> >  [makefile-tests]$ tree .
> >  .
> >  |-- Makefile
> >  |-- out
> >  `-- src
> >     |-- bar.md
> >     `-- foo.md
> >
> >  2 directories, 3 files
> >  [makefile-tests]$
> >  [makefile-tests]$ cat Makefile
> >  VPATH = \
> >   $CURDIR/src \
> >   $CURDIR/out
> >
> >  all: book
> >
> >  %.pdf: %.md
> >          pandoc -f markdown -o $(CURDIR)/out/$@ $(CURDIR)/src/$<;
> >
> >  # Find the PDF files to be built
> >  book: $(addsuffix .pdf, $(notdir $(basename $(wildcard src/*.md))))
> >
> >  # Check target list
> >  test:
> >          echo "$(addsuffix .pdf, $(notdir $(basename $(wildcard 
> > src/*.md))))"
> >  [makefile-tests]$
> >  [makefile-tests]$ make
> >  make: *** No rule to make target 'bar.pdf', needed by 'book'.  Stop.
> >  [makefile-tests]$
> >
> >
> >
> >
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