Make arithmetic coding support status messages more clear


git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@315 632fc199-4ca6-4c93-a231-07263d6284db
diff --git a/configure.ac b/configure.ac
index 7faf146..aa16d83 100644
--- a/configure.ac
+++ b/configure.ac
@@ -207,7 +207,7 @@
 AC_SUBST(VERSION_SCRIPT_FLAG)
 AC_SUBST(ANON_VERSION_SCRIPT_FLAG)
 
-AC_MSG_CHECKING([whether to use arithmetic encoding])
+AC_MSG_CHECKING([whether to include arithmetic encoding support])
 AC_ARG_WITH([arith-enc],
     AC_HELP_STRING([--without-arith-enc], [Omit arithmetic encoding support]))
 if test "x$with_arith_enc" = "xno"; then
@@ -218,7 +218,7 @@
 fi
 AM_CONDITIONAL([WITH_ARITH_ENC], [test "x$with_arith_enc" != "xno"])
 
-AC_MSG_CHECKING([whether to use arithmetic decoding])
+AC_MSG_CHECKING([whether to include arithmetic decoding support])
 AC_ARG_WITH([arith-dec],
     AC_HELP_STRING([--without-arith-dec], [Omit arithmetic decoding support]))
 if test "x$with_arith_dec" = "xno"; then