I am getting the following error when I try to compile 4.0. thanks for the help -o build/genattrtab.o ../../gcc-4.0.0/gcc/genattrtab.c gcc -c -g -DENABLE_CHECKING -DENABLE_ASSERT_CHECKING -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -DHAVE_CONFIG_H -DGENERATOR_FILE -I. -Ibuild -I../../gcc-4.0.0/gcc -I../../gcc-4.0.0/gcc/build -I../../gcc-4.0.0/gcc/../include -I../../gcc-4.0.0/gcc/../libcpp/include \ -o build/genautomata.o ../../gcc-4.0.0/gcc/genautomata.c gcc -c -g -DENABLE_CHECKING -DENABLE_ASSERT_CHECKING -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -DHAVE_CONFIG_H -DGENERATOR_FILE -I. -Ibuild -I../../gcc-4.0.0/gcc -I../../gcc-4.0.0/gcc/build -I../../gcc-4.0.0/gcc/../include -I../../gcc-4.0.0/gcc/../libcpp/include \ -o build/varray.o ../../gcc-4.0.0/gcc/varray.c gcc -g -DENABLE_CHECKING -DENABLE_ASSERT_CHECKING -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -DHAVE_CONFIG_H -DGENERATOR_FILE -o build/genattrtab \ build/genattrtab.o build/genautomata.o \ build/rtl.o build/read-rtl.o build/ggc-none.o build/min-insn-modes.o build/gensupport.o build/insn-conditions.o build/print-rtl.o build/errors.o \ build/varray.o ../build-powerpc-ibm-aix5.3.0.0/libiberty/libiberty.a -lm build/genattrtab ../../gcc-4.0.0/gcc/config/rs6000/rs6000.md > tmp-attrtab.c out of memory allocating 12016 bytes after a total of 4161654188 bytes make[2]: *** [s-attrtab] Error 1 make[2]: Leaving directory `/export/files/aix/gcc/build/gcc' make[1]: *** [stage1_build] Error 2 make[1]: Leaving directory `/export/files/aix/gcc/build/gcc' make: *** [bootstrap] Error 2