--- configure
+++ configure
@@ -2432,8 +2432,8 @@
 
 test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
 
-# Extract the first word of "ar", so it can be a program name with args.
-set dummy ar; ac_word=$2
+# Extract the first word of "${ac_tool_prefix}ar", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ar; ac_word=$2
 echo "$as_me:$LINENO: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_path_AR+set}" = set; then