* configure.in: download unicode files beofre build.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@48064 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

configure.in

@@ -46,6 +46,9 @@ if test "`RUBYOPT=- $BASERUBY -e 'p 42' 2>/dev/null`" = 42; then
 	BASERUBY="$BASERUBY --disable=gems"
     fi
     $BASERUBY -C "$srcdir/tool" downloader.rb -e gnu config.guess config.sub
+    $BASERUBY -C "$srcdir/enc/unicode/data" \
+	    ../../../tool/downloader.rb -e ${ALWAYS_UPDATE_UNICODE+-a} unicode \
+	    UnicodeData.txt CompositionExclusions.txt NormalizationTest.txt
 else
     BASERUBY="echo executable host ruby is required.  use --with-baseruby option.; false"
 fi