--- configure.orig	Mon Dec 18 18:05:50 2006
+++ configure	Mon Dec 18 18:06:30 2006
@@ -25315,7 +25315,7 @@ else
 echo "${ECHO_T}yes" >&6
 	enable_cairo_pdf=yes
 fi
-	    if test x$enable_cairo_pdf == xyes; then
+	    if test x$enable_cairo_pdf = xyes; then
 
 cat >>confdefs.h <<\_ACEOF
 #define HAVE_CAIRO_PDF 1
