diff --git a/acinclude.m4 b/acinclude.m4
index c63db812b86..817e6dc904b 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -245,6 +245,8 @@ AC_DEFUN(PHP_MISSING_PREAD_DECL,[
       ],[
         ac_cv_pread=no
       ])
+    ],[
+      ac_cv_pread=no
     ])
   ])
   ])
@@ -279,6 +281,8 @@ AC_DEFUN(PHP_MISSING_PWRITE_DECL,[
       ],[
         ac_cv_pwrite=no
       ])
+    ],[
+      ac_cv_pwrite=no
     ])
   ])
   ])