gcc-3.4.0 - build failure on AIX 5.1

[Ryszard Kabatek]

The build hangs on during compilation of 'strstream.cc'.

/home/rysio/tmp/working/objdir/gcc/xgcc -shared-libgcc -B/home/rysio/tmp/working
/objdir/gcc/ -nostdinc++ -L/home/rysio/tmp/working/objdir/powerpc-ibm-aix5.1.0.0
/pthread/libstdc++-v3/src -L/home/rysio/tmp/working/objdir/powerpc-ibm-aix5.1.0.
0/pthread/libstdc++-v3/src/.libs -B/home/rysio/gcc/powerpc-ibm-aix5.1.0.0/bin/ -
B/home/rysio/gcc/powerpc-ibm-aix5.1.0.0/lib/ -isystem /home/rysio/gcc/powerpc-ib
m-aix5.1.0.0/include -isystem /home/rysio/gcc/powerpc-ibm-aix5.1.0.0/sys-include
 -pthread -I/home/rysio/tmp/working/objdir/powerpc-ibm-aix5.1.0.0/pthread/libstd
c++-v3/include/powerpc-ibm-aix5.1.0.0 -I/home/rysio/tmp/working/objdir/powerpc-i
bm-aix5.1.0.0/pthread/libstdc++-v3/include -I/home/rysio/tmp/working/gcc-3.4.0/l
ibstdc++-v3/libsupc++ -O2 -g -O2 -g -O2 -pthread -fno-implicit-templates -Wall -
W -Wwrite-strings -Wcast-qual -fdiagnostics-show-location=once -I/home/rysio/tmp
/working/objdir/powerpc-ibm-aix5.1.0.0/pthread/libstdc++-v3/include/backward -Wn
o-deprecated -c ../../../../../gcc-3.4.0/libstdc++-v3/src/strstream.cc -o strstream.o