Hi, on an Itanium system I seeing this error in stage 3, trunk at r164313: libtool: compile: /home3/pasqua/GNUBUILD/obj/./gcc/xgcc -shared-libgcc -B/home3/pasqua/GNUBUILD/obj/./gcc -nostdinc++ -L/home3/pasqua/GNUBUILD/obj/ia64-unknown-linux-gnu/libstdc++-v3/src -L/home3/pasqua/GNUBUILD/obj/ia64-unknown-linux-gnu/libstdc ++-v3/src/.libs -B/home3/pasqua/gnu46/ia64-unknown-linux-gnu/bin/ -B/home3/pasqua/gnu46/ia64-unknown-linux-gnu/lib/ -isystem /home3/pasqua/gnu46/ia64-unknown-linux-gnu/include -isystem /home3/pasqua/gnu46/ia64-unknown-linux-gnu/sys-include -I/home3/pasqua/GNUBUILD/gcc/libstdc++-v3/../gcc -I/home3/pasqua/GNUBUILD/obj/ia64-unknown-linux-gnu/libstdc ++-v3/include/ia64-unknown-linux-gnu -I/home3/pasqua/GNUBUILD/obj/ia64-unknown-linux-gnu/libstdc++-v3/include -I/home3/pasqua/GNUBUILD/gcc/libstdc++-v3/libsupc++ -fno-implicit-templates -Wall -Wextra -Wwrite-strings -Wcast-qual -fdiagnostics-show-location=once -ffunction-sections -fdata-sections -g -O2 -D_GNU_SOURCE -c ../../../../gcc/libstdc++-v3/libsupc ++/array_type_info.cc -fPIC -DPIC -o array_type_info.o ../../../../gcc/libstdc++-v3/libsupc++/array_type_info.cc:33:1: internal compiler error: tree check: expected tree that contains 'decl with RTL' structure, have 'addr_expr' in output_constant, at varasm.c:4408 Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. make[4]: *** [array_type_info.lo] Error 1 make[4]: Leaving directory `/home3/pasqua/GNUBUILD/obj/ia64-unknown-linux-gnu/libstdc++-v3/libsupc ++' make[3]: *** [all-recursive] Error 1 make[3]: Leaving directory `/home3/pasqua/GNUBUILD/obj/ia64-unknown-linux-gnu/libstdc++-v3' make[2]: *** [all] Error 2 make[2]: Leaving directory `/home3/pasqua/GNUBUILD/obj/ia64-unknown-linux-gnu/libstdc++-v3' make[1]: *** [all-target-libstdc++-v3] Error 2 make[1]: Leaving directory `/home3/pasqua/GNUBUILD/obj' make: *** [bootstrap] Error 2 I have searched on bugzilla, there are some similar items, but probably not identical. Is this really new? Ideas anyone? Thanks Salvatore