Selon Roger Phillips :
You didn't mention which OS you are using, but if it is Windows, I believe you
are running into this proj4 bug : http://trac.osgeo.org/proj/ticket/63
It is now fixed, but no 4.7.1 or 4.8.0 release has been made since the fix has
been applied, so you have to patch it manuall
Hello folks,
I recently tried to use the GDAL 1.9.0 API from multiple threads. However, they
may arise a deadlock situation
where one thread hangs in the cpl_multithread.cpp CPLAcquireMutex function and
others hang in the pj_acquire_lock() function of the proj.4 4.7.0 API blocking
each other.
