diff --git a/include/site/linux b/include/site/linux
index 63fc3aa6b1e9b1..1dadd60bf37f6b 100644
--- a/include/site/linux
+++ b/include/site/linux
@@ -66,9 +66,12 @@ ac_cv_sctp=no
 ac_cv_sys_restartable_syscalls=yes
 ac_cv_time_r_type=POSIX
 ac_cv_type_suseconds_t=yes
+ac_cv_size_t=yes
+ac_cv_ssize_t=yes
 ac_cv_uchar=no
 ac_cv_uint=yes
 ac_cv_uint64_t=yes
+ac_cv_uintptr_t=yes
 ac_cv_ulong=yes
 ac_cv_ushort=yes
 ac_cv_va_copy=C99