diff --git a/config.h.cmake b/config.h.cmake
index 43c8f735ff5..048ce816a43 100644
--- a/config.h.cmake
+++ b/config.h.cmake
@@ -237,8 +237,6 @@
 #cmakedefine HAVE_THR_YIELD 1
 #cmakedefine HAVE_TIME 1
 #cmakedefine HAVE_TIMES 1
-#cmakedefine HAVE_UCONTEXT 1
-#cmakedefine HAVE_VALLOC 1
 #cmakedefine HAVE_VIDATTR 1
 #define HAVE_VIO_READ_BUFF 1
 #cmakedefine HAVE_VASPRINTF 1
diff --git a/configure.cmake b/configure.cmake
index b0c2a07ced1..8f7ff762e13 100644
--- a/configure.cmake
+++ b/configure.cmake
@@ -977,9 +977,6 @@ CHECK_STRUCT_HAS_MEMBER("struct sockaddr_in6" sin6_len
 
 SET(CMAKE_EXTRA_INCLUDE_FILES) 
 
-CHECK_STRUCT_HAS_MEMBER("struct dirent" d_ino "dirent.h"  STRUCT_DIRENT_HAS_D_INO)
-CHECK_STRUCT_HAS_MEMBER("struct dirent" d_namlen "dirent.h"  STRUCT_DIRENT_HAS_D_NAMLEN)
-SET(SPRINTF_RETURNS_INT 1)
 CHECK_INCLUDE_FILE(ucontext.h HAVE_UCONTEXT_H)
 IF(NOT HAVE_UCONTEXT_H)
   CHECK_INCLUDE_FILE(sys/ucontext.h HAVE_UCONTEXT_H)