commit 755169cc3b0991bb783ade963da3a473db147067
Author: Olly Betts <olly@survex.com>
Date:   Tue Jan 12 17:24:11 2016 +1300

    Need to AC_SUBST probed value of ZLIB_LIBS
    
    Noted by Paul Wise

diff --git a/xapian-applications/omega/configure.ac b/xapian-applications/omega/configure.ac
index db56262..36d894e 100644
--- a/xapian-applications/omega/configure.ac
+++ b/xapian-applications/omega/configure.ac
@@ -120,6 +120,7 @@ AC_SEARCH_LIBS([zlibVersion], [z zlib zdll], [], [
   AC_MSG_ERROR([zlibVersion() not found in -lz, -lzlib, or -lzdll (you  may need to install the zlib1g-dev or zlib-devel package)])
   ])
 ZLIB_LIBS=$LIBS
+AC_SUBST([ZLIB_LIBS])
 LIBS=$SAVE_LIBS
 
 dnl libmagic used to detect MIME types for files we don't detect by extension.