PIL (etc etc etc) on OS X

David C. Ullrich dullrich at sprynet.com
Tue Aug 5 17:47:07 CEST 2008

In article <489797fc$0$49816$e4fe514c at news.xs4all.nl>,
 Irmen de Jong <irmen.NOSPAM at xs4all.nl> wrote:

> David C. Ullrich wrote:
> > Just as well that the message sent earlier today
> > seems to have been lost...
> > 
> > Ok. Read your instructions on libjpeg. Read some
> > of the install.doc. ./configure, fine. make, fine.
> > "make test", fine. So I said "sudo make install"
> > and this happened:
> > 
> > 0-1d-4f-fc-28-d:jpeg-6b dullric$ sudo make install
> > Password:
> [...]
> I had to do the following to build and install it in a way such that PIL 
> would recognise 
> it. But it does now, without changing anything in PIL's setup files.
> $ cd jpeg-6b/
> $ ln -s `which glibtool` libtool
> $ ./configure --enable-shared --enable-static --host=powerpc
> $ make
> $ sudo make install

Thanks - that gets me closer:

I'd already found out about the --enable-* switches, but
when I tried them it complained it couldn't find ./libtool.
I _guessed_ host should be intel
I changed the 10.4 to 10.5 and did this:

$ ln -s `which glibtool` libtool
$ ./configure --enable-shared --enable-static --host=intel
$ make
$ sudo make install

That fixed the complaints about no ./libtool, great.

Then I went back to PIL. The setup.py reported that everything
was great, including JPEG.

And then selftest.py said it couldn't find a jpeg decoder...

0-1d-4f-fc-28-d:Imaging-1.1.6 dullric$ python selftest.py
Failure in example: _info(Image.open("Images/lena.jpg"))
from line #24 of selftest.testimage
Exception raised:
Traceback (most recent call last):
  File "./doctest.py", line 499, in _run_examples_inner
    exec compile(source, "<string>", "single") in globs
  File "<string>", line 1, in <module>
  File "./selftest.py", line 22, in _info
  File "PIL/ImageFile.py", line 180, in load
    d = Image._getdecoder(self.mode, d, a, self.decoderconfig)
  File "PIL/Image.py", line 375, in _getdecoder
    raise IOError("decoder %s not available" % decoder_name)
IOError: decoder jpeg not available
1 items had failures:
   1 of  57 in selftest.testimage
***Test Failed*** 1 failures.
*** 1 tests of 57 failed.

> (note that I have a PPC mac so the host parameter may not be correct for your 
> system)
> --irmen

David C. Ullrich

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