buildconf.sh: Fix variable mis-nomer/collision
diff --git a/expat/buildconf.sh b/expat/buildconf.sh
index 7bfc42c..69981df 100755
--- a/expat/buildconf.sh
+++ b/expat/buildconf.sh
@@ -17,7 +17,7 @@
 fi
 
 echo "Creating configure ..."
-${AUTOCONF:-autoreconf} -fvi
+${AUTORECONF:-autoreconf} -fvi
 
 # toss this; it gets created by autoconf on some systems
 rm -rf autom4te*.cache