fix logic for BUID_DOCBOOK_HTML

[ghc-hetmet.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index a6cee70..f1cd4ca 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -921,7 +921,7 @@ else
 fi
 AC_SUBST(HavePapi)
 
-if test "$HAVE_DOCBOOK_XSL" = "" ||
+if test "$HAVE_DOCBOOK_XSL" = "NO" ||
    test "$XsltprocCmd" = ""
 then
     BUILD_DOCBOOK_HTML=NO