using make to convert images to thumbs

[Jason Stephenson]

Jason Stephenson wrote:
> 
> ## Makefile example starts here. ##
> IMG_BASE = /img
> THM_BASE = /thumb/img
> 
> IMG_PROC = /path/to/image/processor
> IMG_PROC_OPTS = # default options for image processor
> 
> TARGET = # undefined. define on command line
> 
> thumbs:
>     if test "${TARGET}" = "" ; then
>         echo "TARGET undefined"
>     else
>         ${IMG_PROC} ${IMG_PROC_OPTS} ${IMG_BASE}/${TARGET} \
>         ${THM_BASE}/${TARGET}
>     fi
> ## Makefile example ends here. ##

There are errors in the above Makefile example. One that would actually 
run through make would like this:

## Makefile example starts here. ##
IMG_BASE = /img
THM_BASE = /thumb/img

IMG_PROC = /path/to/image/processor
IMG_PROC_OPTS = # default options for image processor

TARGET = # undefined. define on command line

thumbs:
     if test "${TARGET}" == "" ; then \
         echo "TARGET undefined" \
     else \
         ${IMG_PROC} ${IMG_PROC_OPTS} ${IMG_BASE}/${TARGET} \
         ${THM_BASE}/${TARGET} \
     fi
## Makefile example ends here. ##

I noticed them after I sent the email. Unfortunately, I don't pay as 
much attention when typing code in an email than when actually doing 
something that I'm going to try to use. ;)