Workarounds for QNX's compiler choking to death on parts of nsCOMPtr.h.

configure.in

@@ -433,6 +433,9 @@ alpha*-*-osf*)
     ;;
 
 *-qnx*) 
+    dnl Solves the problems the QNX compiler has with nsCOMPtr.h.
+    AC_DEFINE(NSCAP_DISABLE_TEST_DONTQUERY_CASES)
+    AC_DEFINE(NSCAP_DISABLE_DEBUG_PTR_TYPES)
     if test "$no_x" = "yes"; then
 	MOZ_WIDGET_TOOLKIT='photon'
 	TK_LIBS='-lphoton -lphrender'