[Image-SIG] another libjpeg problem - PIL can't find it atruntime? (long)
john walshaw (JIC)
john.walshaw at bbsrc.ac.uk
Thu Sep 28 19:05:47 CEST 2006
Fredrik Lundh wrote:
> john walshaw (JIC) wrote:
> > because that's where the libjpeg.a and jpeglib.h files are,
> did you build these yourself ?
> one brute-force workaround worth trying is to remove all
> libjpeg files
> except the static library (libjpeg.a) from /usr/local/lib and
> to force the linker to do a static build.
thanks for the suggestion. I've tried it out, and the short story is
that again the compilation completes, but I'm now getting a different
runtime problem when I import the _imaging library - I get this:
>>> import sys
>>> import _imaging
Traceback (most recent call last):
File "<stdin>", line 1, in ?
ImportError: dlopen: Cannot map library PIL/_imaging.so
The long story is - first to answer your question, I hadn't built
libjpeg myself, so one thing I tried was getting the most recent source
and building this again, and using that for the compilation, ensuring
that the older one doesn't get used. I have the same error when trying
to import the _imaging built with the new one.
As far as forcing a static build using libjpeg.a goes - I did try the
brute force method, producing the _libjpeg.so which gives the above
However I also tried a cleaner way of doing this with running the linker
with -non_shared, and -ljpeg, and forcing (with -L ) the linker to never
look anywhere except the dirs specified with the other -L qualifiers.
This produced the same error unfortunately.
I also tried doing both the non-static and static builds using the
native cc instead of gcc which setup.py uses by default, but in each
case the cc build gives the same respective run-time error as with gcc.
(I have another beginner's question here - how do I cleanly tell
setup.py which compiler and directives to use?).
Finally, I decided to do a fresh install of Python itself, so I
installed Python 2.5 in a separate location, and used the 2.5 executable
to do the PIL build and then attempt the import of _imaging - but I got
the same error message as before.
Any ideas, or if anyone on this list has PIL on Tru64, I'd be grateful
to hear from them.
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