[pypy-issue] [issue1351] ctypes.util._findLib_gcc can't find a non-system library
Kevin Duffy
tracker at bugs.pypy.org
Thu Dec 20 23:04:14 CET 2012
New submission from Kevin Duffy <duffy151+pypy at gmail.com>:
Using cffi 0.4.2 and PyPy 2.0b1 on linux,
- compile a C library
- Write a python extension for it using cffi where ffi.dlopen(<library>) is used
(not ffi.verify())
- ship the library and python program in this filesystem configuration:
<prog-root>/lib/c-library.so
<prog-root>/bin/prog.py
- Run like:
LD_LIBRARY_PATH=<prog-root>/lib pypy <prog-root>/bin/prog.py
Results:
- the ffi.dlopen() fails to find the user library
Drilling down on this, ffi.dlopen() will eventually call ctypes.util._findLib_gcc
(on linux anyway). This attempts to have gcc link with the library in order to
find it. But this doesn't take into account the LD_LIBRARY_PATH so the link fails.
If you convert the LD_LIBRARY_PATH env variable in to "-L" args to gcc,
ffi.dlopen() works.
----------
messages: 5100
nosy: duffy151, pypy-issue
priority: bug
status: unread
title: ctypes.util._findLib_gcc can't find a non-system library
________________________________________
PyPy bug tracker <tracker at bugs.pypy.org>
<https://bugs.pypy.org/issue1351>
________________________________________
More information about the pypy-issue
mailing list