diff --git a/autoconf/configure.ac b/autoconf/configure.ac
index 6d16244..4526c48 100644
--- a/autoconf/configure.ac
+++ b/autoconf/configure.ac
@@ -337,10 +337,10 @@
 AC_ARG_WITH(extra-options,
   AS_HELP_STRING([--with-extra-options],
                  [Specify addtional options to compile LLVM with]),,
-                 extraopts=default)
-case "$extraopts" in
+                 withval=default)
+case "$withval" in
   default) EXTRA_OPTIONS= ;;
-  *) EXTRA_OPTIONS=$extraopts ;;
+  *) EXTRA_OPTIONS=$withval ;;
 esac
 AC_SUBST(EXTRA_OPTIONS,$EXTRA_OPTIONS)
 
diff --git a/configure b/configure
index c968525..6d018b8 100755
--- a/configure
+++ b/configure
@@ -3347,11 +3347,11 @@
   withval="$with_extra_options"
 
 else
-  extraopts=default
+  withval=default
 fi;
-case "$extraopts" in
+case "$withval" in
   default) EXTRA_OPTIONS= ;;
-  *) EXTRA_OPTIONS=$extraopts ;;
+  *) EXTRA_OPTIONS=$withval ;;
 esac
 EXTRA_OPTIONS=$EXTRA_OPTIONS