When compiling a new version of binutils (version 2.21), I encountered the following error during the 'make check':
Running /usr/src/binutils-2.21/ld/testsuite/ld-plugin/plugin.exp ...
FAIL: plugin claimfile lost symbol
I couldn't find much about the cause of this error, but I did find a patch that fixed this error for me:
http://sourceware.org/ml/binutils-cvs/2010-11/msg00048.html