http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50888
--- Comment #4 from Christian Joensson <christian.joensson at gmail dot com> 2011-10-31 05:29:38 UTC --- Recent bootstrap/build on i686/linux libtool: link: /usr/local/src/trunk/objdir/./gcc/gcj -B/usr/local/src/trunk/objdir/i686-redhat-linux/libjava/ -B/usr/local/src/trunk/objdir/./gcc/ -B/usr/i686-redhat-linux/bin/ -B/usr/i686-redhat-linux/lib/ -isystem /usr/i686-redhat-linux/include -isystem /usr/i686-redhat-linux/sys-include -ffloat-store -fomit-frame-pointer -Usun -g -O2 -o .libs/jv-convert --main=gnu.gcj.convert.Convert -shared-libgcc -L/usr/local/src/trunk/objdir/i686-redhat-linux/libjava/.libs -L/usr/local/src/trunk/objdir/i686-redhat-linux/libjava ./.libs/libgcj.so -lpthread -lrt -ldl -lz -Wl,-rpath -Wl,/usr/lib ./.libs/libgcj.so: undefined reference to `__cxa_call_unexpected' collect2: error: ld returned 1 exit status make[3]: *** [jv-convert] Error 1