diff -urN zip30/unix/configure zip30.new/unix/configure
--- zip30/unix/configure	2008-06-19 23:32:20.000000000 +0000
+++ zip30.new/unix/configure	2012-09-18 12:41:09.246877004 +0000
@@ -453,6 +453,11 @@
 # Check for wide char for Unicode support
 # Added 11/24/2005 EG
 
+if test -n "${DISABLE_UNICODE}"; then
+  echo -- no Unicode support, disabled
+  OCRCU8=""
+  OCRCTB="crc32_.o"
+else
 echo Check for wide char support
 cat > conftest.c << _EOF_
 #include <stdlib.h>
@@ -486,7 +491,7 @@
   OCRCU8="crc32_.o ${OCRCU8}"
   OCRCTB=""
 fi
-
+fi
 
 # from configure 2.4i (Onno) 12/5/04