diff --git a/configure.ac b/configure.ac
index efff6ece..ba9749c7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -135,7 +135,6 @@ AC_PROG_CPP
 AC_PROG_INSTALL
 AC_PROG_LN_S
 AC_PROG_MAKE_SET
-AC_PROG_RANLIB
 AC_PROG_MKDIR_P
 
 PKG_PROG_PKG_CONFIG([0.20])
@@ -535,7 +534,6 @@ AC_TYPE_OFF_T
 AC_TYPE_PID_T
 AC_TYPE_UID_T
 AC_CHECK_TYPES([ptrdiff_t])
-AC_CHECK_HEADER_STDBOOL
 AC_C_BIGENDIAN
 AC_C_INLINE
 AC_SYS_LARGEFILE