+# Disable C++ on systems where it is known to not work.
+# For testing, you can override this with --enable-languages=c++.
+case ,${enable_languages}, in
+ *,c++,*)
+ ;;
+ *)
+ case "${target}" in
+ bpf-*-*)
+ unsupported_languages="$unsupported_languages c++"
+ ;;
+ esac
+ ;;
+esac
+
+# Disable Objc on systems where it is known to not work.
+# For testing, you can override this with --enable-languages=objc.
+case ,${enable_languages}, in
+ *,objc,*)
+ ;;
+ *)
+ case "${target}" in
+ bpf-*-*)
+ unsupported_languages="$unsupported_languages objc"
+ ;;
+ esac
+ ;;
+esac
+
+# Disable D on systems where it is known to not work.
+# For testing, you can override this with --enable-languages=d.
+case ,${enable_languages}, in
+ *,d,*)
+ ;;
+ *)
+ case "${target}" in
+ bpf-*-*)
+ unsupported_languages="$unsupported_languages d"
+ ;;
+ esac
+ ;;
+esac
+
+# Disable libphobos on unsupported systems.
+# For testing, you can override this with --enable-libphobos.
+if test -d ${srcdir}/libphobos; then
+ if test x$enable_libphobos = x; then
+ AC_MSG_CHECKING([for libphobos support])
+ if (srcdir=${srcdir}/libphobos; \
+ . ${srcdir}/configure.tgt; \
+ test "$LIBPHOBOS_SUPPORTED" != "yes")
+ then
+ AC_MSG_RESULT([no])
+ noconfigdirs="$noconfigdirs target-libphobos"
+ else
+ AC_MSG_RESULT([yes])
+ fi
+ fi
+fi
+