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'find_library' itself actually loads no libraries. I suspect what happened was that the following code in the 'uuid' module coupled with the 'find_library' bug caused 'liblttng-ust-libc.so' to be loaded:
 for libname in ['uuid', 'c']:
 try:
 lib = ctypes.CDLL(ctypes.util.find_library(libname))
 except:
 continue
 if hasattr(lib, 'uuid_generate_random'):
 _uuid_generate_random = lib.uuid_generate_random
 if hasattr(lib, 'uuid_generate_time'):
 _uuid_generate_time = lib.uuid_generate_time
This issue was fixed in 3.3 as a part of the optimization done in issue11258. I can still reproduce the problem in 2.7 and 3.2.
I am just going to backport the 3.3 regex to 2.7 and 3.2. This is not an issue for the '_findLib_gcc' regex because the GCC output has a different format. '_findLib_ldconfig' is never actually called so I removed it. Patch attached.