http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50049
--- Comment #7 from robert somerville <rbrt.somerville at gmail dot com> 2011-08-11 19:57:18 UTC --- i believe that the build should use the static libcloog that exists, after all the build has no problems with MPC,MPFR,GMP, and PPL needing an LD_LIBRARY_PATH , which are also in a non-standard location ( the same as libcloog )