PR 37739 applies to 4.3.3, as does the fix (applied by hand to my sources).
I'm running "make check" right now with the patched sources.
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Summary: PR37739 (bootstrap failure) applies to 4.3.3
Product: gcc
Version: 4.3.3
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: lucier at math dot purdue dot edu
GCC build triplet: powerpc64-unknown-linux-gnu
GCC host triplet: powerpc64-unknown-linux-gnu
GCC target triplet: powerpc64-unknown-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39173