This patch stops an SSL header file being included when SSL
support has not been requested.

=== modified file 'src/errorpage.cc'
--- src/errorpage.cc	2011-09-12 00:31:13 +0000
+++ src/errorpage.cc	2011-09-25 00:28:44 +0000
@@ -39,7 +39,9 @@
 #include "auth/UserRequest.h"
 #endif
 #include "SquidTime.h"
+#if USE_SSL
 #include "ssl/ErrorDetailManager.h"
+#endif
 #include "Store.h"
 #include "html_quote.h"
 #include "HttpReply.h"