+# Disable libssp for some systems.
+case "${target}" in
+ avr-*-*)
+ # No hosted I/O support.
+ noconfigdirs="$noconfigdirs target-libssp"
+ ;;
+ powerpc-*-aix* | rs6000-*-aix*)
+ noconfigdirs="$noconfigdirs target-libssp"
+ ;;
+esac
+
+# Disable libstdc++-v3 for some systems.
+case "${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="$unsupported_languages fortran"
+ ;;
+esac
+
+# Disable Java if libffi is not supported.
+case "${target}" in
+ alpha*-*-*)
+ ;;
+ arm*-*-*)
+ ;;
+ cris-*-*)
+ ;;
+ frv-*-*)
+ ;;
+ hppa*-*-linux*)
+ ;;
+ hppa*-*-hpux*)
+ ;;
+ i?86-*-*)
+ ;;
+ ia64*-*-*)
+ ;;
+ m32r*-*-*)
+ ;;
+ m68k-*-*)
+ ;;
+ mips-sgi-irix6.* | mips*-*-rtems*)
+ ;;
+ mips*-*-linux*)
+ ;;
+ powerpc*-*-linux*)
+ ;;
+ powerpc-*-darwin*)
+ ;;
+ powerpc-*-aix* | rs6000-*-aix*)
+ ;;
+ powerpc-*-freebsd*)
+ ;;
+ powerpc64-*-freebsd*)
+ ;;
+ powerpc*-*-rtems*)
+ ;;
+ s390-*-* | s390x-*-*)
+ ;;
+ sh-*-* | sh[[34]]*-*-*)
+ ;;
+ sh64-*-* | sh5*-*-*)
+ ;;
+ sparc*-*-*)
+ ;;
+ x86_64-*-*)
+ ;;
+ *-*-*)
+ unsupported_languages="$unsupported_languages java"
+ ;;
+esac
+
+# Disable Java, libgcj or related libraries for some systems.
+case "${target}" in
+ powerpc-*-darwin*)
+ ;;
+ i[[3456789]]86-*-darwin*)
+ ;;
+ x86_64-*-darwin[[912]]*)
+ ;;
+ *-*-darwin*)
+ noconfigdirs="$noconfigdirs ${libgcj}"
+ ;;
+ *-*-netware*)
+ noconfigdirs="$noconfigdirs ${libgcj}"
+ ;;
+ *-*-rtems*)
+ noconfigdirs="$noconfigdirs ${libgcj}"
+ ;;
+ *-*-tpf*)
+ noconfigdirs="$noconfigdirs ${libgcj}"
+ ;;
+ *-*-uclinux*)
+ noconfigdirs="$noconfigdirs ${libgcj}"
+ ;;
+ *-*-vxworks*)
+ noconfigdirs="$noconfigdirs ${libgcj}"
+ ;;
+ alpha*-*-*vms*)
+ noconfigdirs="$noconfigdirs ${libgcj}"
+ ;;
+ arm-wince-pe)
+ noconfigdirs="$noconfigdirs ${libgcj}"
+ ;;
+ arm*-*-symbianelf*)
+ noconfigdirs="$noconfigdirs ${libgcj}"
+ ;;
+ bfin-*-*)
+ noconfigdirs="$noconfigdirs target-boehm-gc"
+ ;;
+ cris-*-* | crisv32-*-*)
+ unsupported_languages="$unsupported_languages java"
+ case "${target}" in
+ *-*-linux*)
+ ;;
+ *) # See PR46792 regarding target-libffi.
+ noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
+ esac
+ ;;
+ hppa*64*-*-linux*)
+ # In this case, it's because the hppa64-linux target is for
+ # the kernel only at this point and has no libc, and thus no
+ # headers, crt*.o, etc., all of which are needed by these.
+ unsupported_languages="$unsupported_languages java"
+ ;;
+ hppa*64*-*-hpux*)
+ noconfigdirs="$noconfigdirs ${libgcj}"
+ ;;
+ hppa*-hp-hpux11*)
+ ;;
+ hppa*-*-hpux*)
+ # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
+ # build on HP-UX 10.20.
+ noconfigdirs="$noconfigdirs ${libgcj}"
+ ;;
+ ia64*-*-*vms*)
+ noconfigdirs="$noconfigdirs ${libgcj}"
+ ;;
+ i[[3456789]]86-w64-mingw*)
+ noconfigdirs="$noconfigdirs ${libgcj}"
+ ;;
+ i[[3456789]]86-*-mingw*)
+ noconfigdirs="$noconfigdirs ${libgcj}"
+ ;;
+ x86_64-*-mingw*)
+ noconfigdirs="$noconfigdirs ${libgcj}"
+ ;;
+ mmix-*-*)
+ noconfigdirs="$noconfigdirs target-libffi target-boehm-gc"
+ ;;
+ powerpc-*-aix*)
+ # copied from rs6000-*-* entry
+ noconfigdirs="$noconfigdirs ${libgcj}"
+ ;;
+ rs6000-*-aix*)
+ noconfigdirs="$noconfigdirs ${libgcj}"
+ ;;
+ mips*-*-irix6*)
+ # Linking libjava exceeds command-line length limits on at least
+ # IRIX 6.2, but not on IRIX 6.5.
+ # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
+ # <oldham@codesourcery.com>
+ noconfigdirs="$noconfigdirs ${libgcj}"
+ ;;
+ *-*-lynxos*)
+ noconfigdirs="$noconfigdirs ${libgcj}"
+ ;;
+esac
+