case "$machine" in arm*) base_machine=arm case $config_os in linux-gnueabi*) # Lets ask the compiler which ARM family we've got # Unfortunately it doesn't define any flags for implementations # that you might pass to -mcpu or -mtune # Note if you add patterns here you must ensure that # an appropriate directory exists in sysdeps/arm archcppflag=`echo "" | $CC $CFLAGS $CPPFLAGS -E -dM - | grep __ARM_ARCH | sed -e 's/^#define //' -e 's/ .*//'` case x$archcppflag in x__ARM_ARCH_[89]*__) machine=armv7 echo "Found compiler is configured for something newer than v7 - using v7" ;; x__ARM_ARCH_7A__) machine=armv7 echo "Found compiler is configured for $machine" ;; x__ARM_ARCH_6T2__) machine=armv6t2 echo "Found compiler is configured for $machine" ;; *) machine=arm echo 2>&1 "arm/preconfigure: Did not find ARM architecture type; using default" ;; esac machine=arm/$machine if [ "${CFLAGS+set}" != "set" ]; then CFLAGS="-g -O2" fi CFLAGS="$CFLAGS -fno-unwind-tables" ;; *) echo "Old ABI no longer supported" 2>&1 exit 1 ;; esac ;; esac