Re: target variable ($@) as prerequisite

[Oleksandr Gavenko]

On 26.01.2011 9:20, ulugutz wrote:
> Hi,
>
> how can you for example do this
> ------------------------------------
> PICS=%.pdf
>
> all: PICS
> PICS: $(@:pdf=.png)
>          do something
> ------------------------------------
> i would really appreciate your help and sorry if it has been posted already
> but I only checked the newest pages of the forum
Why not use:

PNG_FILES := $(wildcard *.png)
PDF_FILES := $(PNG_FILES:.png=.pdf)

all: $(PDF_FILES)

%.pdf: %.png
        png2pdf -o $@ $*.png

or last rule can be rewritten as:

$(PDF_FILES): %.pdf: %.png
        png2pdf -o $@ $*.png

--
С уважением, Александр Гавенко.