+# Disable libssp for some systems.
+case "${target}" in
+ avr-*-*)
+ noconfigdirs="$noconfigdirs target-libssp"
+ ;;
+ powerpc-*-aix* | rs6000-*-aix*)
+ noconfigdirs="$noconfigdirs target-libssp"
+ ;;
+ microblaze*)
+ noconfigdirs="$noconfigdirs target-libssp"
+ ;;
+esac
+
+# Disable target libiberty for some systems.
+case "${target}" in
+ *-*-kaos*)
+ # Remove unsupported stuff on all kaOS configurations.
+ skipdirs="target-libiberty"
+ ;;
+ *-*-netbsd*)
+ # Skip some stuff on all NetBSD configurations.
+ noconfigdirs="$noconfigdirs target-libiberty"
+ ;;
+ *-*-netware*)
+ noconfigdirs="$noconfigdirs target-libiberty"
+ ;;
+ *-*-rtems*)
+ skipdirs="${skipdirs} target-libiberty"
+ ;;
+ *-*-tpf*)
+ noconfigdirs="$noconfigdirs target-libiberty"
+ ;;
+ *-*-vxworks*)
+ noconfigdirs="$noconfigdirs target-libiberty"
+ ;;
+ sh*-*-pe|mips*-*-pe|*arm-wince-pe)
+ noconfigdirs="$noconfigdirs target-libiberty"
+ ;;
+ arm*-*-symbianelf*)
+ noconfigdirs="$noconfigdirs target-libiberty"
+ ;;
+ avr-*-*)
+ noconfigdirs="$noconfigdirs target-libiberty"
+ ;;
+ m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
+ noconfigdirs="$noconfigdirs target-libiberty"
+ ;;
+ picochip-*-*)
+ noconfigdirs="$noconfigdirs target-libiberty"
+ ;;
+ mips*-sde-elf*)
+ skipdirs="$skipdirs target-libiberty"
+ ;;
+ ip2k-*-*)
+ noconfigdirs="$noconfigdirs target-libiberty"
+ ;;
+esac
+
+# Disable libstdc++-v3 for some systems.
+case "${target}" in
+ *-*-vxworks*)
+ # VxWorks uses the Dinkumware C++ library.
+ noconfigdirs="$noconfigdirs target-libstdc++-v3"
+ ;;
+ arm*-wince-pe*)
+ # the C++ libraries don't build on top of CE's C libraries
+ noconfigdirs="$noconfigdirs target-libstdc++-v3"
+ ;;
+ avr-*-*)
+ noconfigdirs="$noconfigdirs target-libstdc++-v3"
+ ;;
+esac
+
+# Disable Fortran for some systems.
+case "${target}" in
+ mmix-*-*)
+ # See <http://gcc.gnu.org/ml/gcc-patches/2004-11/msg00572.html>.
+ unsupported_languages="$unsupported_languages fortran"
+ ;;
+esac
+