+ *:NetBSD:*:*)
+ # Netbsd (nbsd) targets should (where applicable) match one or
+ # more of the tupples: *-*-netbsdelf*, *-*-netbsdaout*,
+ # *-*-netbsdecoff* and *-*-netbsd*. For targets that recently
+ # switched to ELF, *-*-netbsd* would select the old
+ # object file format. This provides both forward
+ # compatibility and a consistent mechanism for selecting the
+ # object file format.
+ # Determine the machine/vendor (is the vendor relevant).
+ case "${UNAME_MACHINE}" in
+ amiga) machine=m68k-unknown ;;
+ arm32) machine=arm-unknown ;;
+ atari*) machine=m68k-atari ;;
+ sun3*) machine=m68k-sun ;;
+ mac68k) machine=m68k-apple ;;
+ macppc) machine=powerpc-apple ;;
+ hp3[0-9][05]) machine=m68k-hp ;;
+ ibmrt|romp-ibm) machine=romp-ibm ;;
+ *) machine=${UNAME_MACHINE}-unknown ;;
+ esac
+ # The Operating System including object format, if it has switched
+ # to ELF recently, or will in the future.
+ case "${UNAME_MACHINE}" in
+ i386|sparc|amiga|arm*|hp300|mvme68k|vax|atari|luna68k|mac68k|news68k|next68k|pc532|sun3*|x68k)
+ eval $set_cc_for_build
+ if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \
+ | grep __ELF__ >/dev/null
+ then
+ # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout).
+ # Return netbsd for either. FIX?
+ os=netbsd
+ else
+ os=netbsdelf
+ fi
+ ;;
+ *)
+ os=netbsd
+ ;;
+ esac
+ # The OS release
+ release=`echo ${UNAME_RELEASE}|sed -e 's/[-_].*/\./'`
+ # Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM:
+ # contains redundant information, the shorter form:
+ # CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
+ echo "${machine}-${os}${release}"
+ exit 0 ;;