gcc-4.2.3 build problem: ASM_APP_ON undeclared

I must be doing something wrong, I cannot seem to compile the new 4.2.3 : gmake[3]: Entering directory `/home/danny/src/gcc/x86-bootstrap/gcc' gcc -c -g -fkeep-inline-functions -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -Wmissing-format-at

gcc-4.2.3 build problem: ASM_APP_ON undeclared

I must be doing something wrong, I cannot seem to compile the new 4.2.3 : gmake[3]: Entering directory `/home/danny/src/gcc/x86-bootstrap/gcc' gcc -c -g -fkeep-inline-functions -DIN_GCC -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -Wmissing-format-att