Remove acconfig.h.
diff --git a/configure b/configure
index bc0928c..230056b 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in Revision: 1.304 .
+# From configure.in Revision: 1.305 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.53.
 #
@@ -14947,6 +14947,8 @@
   enable_unicode="ucs2"
 fi
 
+
+
 case "$enable_unicode" in
 ucs2) unicode_size="2"
       cat >>confdefs.h <<\_ACEOF
@@ -14965,6 +14967,7 @@
 
 
 
+
 if test "$enable_unicode" = "no"
 then
   UNICODE_OBJS=""