Check $AR when detecting ar as this seems to be the official way

diff --git a/configure.ac b/configure.ac
index b8e97bc10b90340e1ffea4ea587442c24dd3d0bd..a65c31ee5790c09917ba0a59692c8fab542b920f 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -17,7 +17,7 @@ AC_PROG_CPP
 AC_PROG_INSTALL
 AC_PROG_RANLIB
 AC_CHECK_TOOL(AR, ar)
-if test -z "$ac_ct_AR"; then
+if test -z "$AR"; then
     AC_MSG_ERROR(cannot find ar)
 fi