don't use lower and upper temporaries

diff --git a/m4/decl.m4 b/m4/decl.m4
index 3af6a0cf3db8cfbe75f8ff9e00846287b746329a..10a8062f0f73d7cb5fe2d0f3c849b0363e5a9d67 100644 (file)
--- a/m4/decl.m4
+++ b/m4/decl.m4
@@ -51,9 +51,7 @@ AC_DEFUN(jm_CHECK_DECLARATIONS,
   do
     jm_CHECK_DECLARATION($jm_func,
     [
-      lower=abcdefghijklmnopqrstuvwxyz
-      upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ
-      jm_tr_func=HAVE_DECLARATION_`echo $jm_func | tr $lower $upper`
+      jm_tr_func=HAVE_DECLARATION_`echo $jm_func | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
       AC_DEFINE_UNQUOTED($jm_tr_func) $2], $3)dnl
   done
 ])