Re: 64bit windows OS

[Raphael Walker-2]

 > As for building PIL x64, if you want full feature support, you have to
 > build
 > some dependencies as well (zlib, libpng, jpeglib, and freetype). It's
 > a bit
 > convoluted; if you or anyone else want instructions, I'll post them
 > here.

Hello Elias,

Please give instructions for building PIL 1.1.6 for win64.

1. I added extensions for png (zlib) and jpeg (jpeg-6b/jpeg-7).

my  setup.py:
TCL_ROOT = None
JPEG_ROOT = 'jpeg-7'
ZLIB_ROOT = 'zlib'
TIFF_ROOT = None
FREETYPE_ROOT = None
LCMS_ROOT = None

2. I build PIL with :

 > python setup.py build

build complete with:
--- JPEG support available
--- ZLIB (PNG/ZIP) support available

3. try selftest
 > python selftest.py

c:\Users\rwalker\devel\building\Imaging-1.1.6>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
     im.load()
   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.

4. i search for possible errors/mistakes

the _imaging.pyd has dependencies to zlib.dll. i checked your
_imaging.pyd from your install package and there is no dependency to
zlib.dll.

what did i missed for compiling PIL on win64?

Thanks,
Raphael

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[Elias Fotinis]

From: "Raphael Walker" <web@...>
> the _imaging.pyd has dependencies to zlib.dll. i checked your _imaging.pyd
> from your install package and there is no dependency to zlib.dll.

There shouldn't be a dll dependancy. You have to build zlib as a static
library (zlib.lib). I've used the makefile in zlib's win32 directory to
create a zlib.lib (make sure you're in the main zlib directory, not in
\win32):

    nmake /f win32\makefile.msc zlib.lib

You can omit the "zlib.lib" part in the above command if you want all
targets (dll, minigzip, etc.) to be built, but we don't need them for PIL.
Try that and see if it works.

And remember I've uploaded a prebuilt x64 PIL 1.1.6 binary for Python 2.6 in
case you need it in a hurry :)
    http://www.mediafire.com/?20h3zeimnke 

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