configure: Don't use cups-config --libs, it returns garbage.
diff --git a/configure.ac b/configure.ac
index 9b29e57..3ac2c96 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1125,7 +1125,7 @@
 then
     ac_save_CPPFLAGS="$CPPFLAGS"
     ac_cups_cflags=`cups-config --cflags 2>/dev/null`
-    ac_cups_libs="`cups-config --ldflags 2>/dev/null` `cups-config --libs 2>/dev/null`"
+    ac_cups_libs=`cups-config --ldflags 2>/dev/null`
     CPPFLAGS="$CPPFLAGS $ac_cups_cflags"
     AC_CHECK_HEADERS(cups/cups.h,
             [WINE_CHECK_SONAME(cups,cupsGetDefault,