+# Make sure we can run config.sub.
+$SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
+ { { $as_echo "$as_me:$LINENO: error: cannot run $SHELL $ac_aux_dir/config.sub" >&5
+$as_echo "$as_me: error: cannot run $SHELL $ac_aux_dir/config.sub" >&2;}
+ { (exit 1); exit 1; }; }
+
+{ $as_echo "$as_me:$LINENO: checking build system type" >&5
+$as_echo_n "checking build system type... " >&6; }
+if test "${ac_cv_build+set}" = set; then
+ $as_echo_n "(cached) " >&6
+else
+ ac_build_alias=$build_alias
+test "x$ac_build_alias" = x &&
+ ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"`
+test "x$ac_build_alias" = x &&
+ { { $as_echo "$as_me:$LINENO: error: cannot guess build type; you must specify one" >&5
+$as_echo "$as_me: error: cannot guess build type; you must specify one" >&2;}
+ { (exit 1); exit 1; }; }
+ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` ||
+ { { $as_echo "$as_me:$LINENO: error: $SHELL $ac_aux_dir/config.sub $ac_build_alias failed" >&5
+$as_echo "$as_me: error: $SHELL $ac_aux_dir/config.sub $ac_build_alias failed" >&2;}
+ { (exit 1); exit 1; }; }
+
+fi
+{ $as_echo "$as_me:$LINENO: result: $ac_cv_build" >&5
+$as_echo "$ac_cv_build" >&6; }
+case $ac_cv_build in
+*-*-*) ;;
+*) { { $as_echo "$as_me:$LINENO: error: invalid value of canonical build" >&5
+$as_echo "$as_me: error: invalid value of canonical build" >&2;}
+ { (exit 1); exit 1; }; };;
+esac
+build=$ac_cv_build
+ac_save_IFS=$IFS; IFS='-'
+set x $ac_cv_build
+shift
+build_cpu=$1
+build_vendor=$2
+shift; shift
+# Remember, the first character of IFS is used to create $*,
+# except with old shells:
+build_os=$*
+IFS=$ac_save_IFS
+case $build_os in *\ *) build_os=`echo "$build_os" | sed 's/ /-/g'`;; esac
+
+
+{ $as_echo "$as_me:$LINENO: checking host system type" >&5
+$as_echo_n "checking host system type... " >&6; }
+if test "${ac_cv_host+set}" = set; then
+ $as_echo_n "(cached) " >&6
+else
+ if test "x$host_alias" = x; then
+ ac_cv_host=$ac_cv_build
+else
+ ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` ||
+ { { $as_echo "$as_me:$LINENO: error: $SHELL $ac_aux_dir/config.sub $host_alias failed" >&5
+$as_echo "$as_me: error: $SHELL $ac_aux_dir/config.sub $host_alias failed" >&2;}
+ { (exit 1); exit 1; }; }
+fi
+
+fi
+{ $as_echo "$as_me:$LINENO: result: $ac_cv_host" >&5
+$as_echo "$ac_cv_host" >&6; }
+case $ac_cv_host in
+*-*-*) ;;
+*) { { $as_echo "$as_me:$LINENO: error: invalid value of canonical host" >&5
+$as_echo "$as_me: error: invalid value of canonical host" >&2;}
+ { (exit 1); exit 1; }; };;
+esac
+host=$ac_cv_host
+ac_save_IFS=$IFS; IFS='-'
+set x $ac_cv_host
+shift
+host_cpu=$1
+host_vendor=$2
+shift; shift
+# Remember, the first character of IFS is used to create $*,
+# except with old shells:
+host_os=$*
+IFS=$ac_save_IFS
+case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac
+
+
+{ $as_echo "$as_me:$LINENO: checking for Win32 environment" >&5
+$as_echo_n "checking for Win32 environment... " >&6; }
+case "$host" in
+ *-*-mingw*)
+ os_win32=yes;;
+ *)
+ os_win32=no;;
+esac
+{ $as_echo "$as_me:$LINENO: result: $os_win32" >&5
+$as_echo "$os_win32" >&6; }
+ if test "$os_win32" = "yes"; then
+ WIN32_TRUE=
+ WIN32_FALSE='#'
+else
+ WIN32_TRUE='#'
+ WIN32_FALSE=
+fi
+
+