--- src/test/test-sizeof.c
+++ src/test/test-sizeof.c
@@ -48,8 +48,10 @@ int main(void) {
         info(unsigned);
         info(long unsigned);
         info(long long unsigned);
+#ifdef __GLIBC__
         info(__syscall_ulong_t);
         info(__syscall_slong_t);
+#endif
 
         info(float);
         info(double);
@@ -59,7 +61,9 @@ int main(void) {
         info(ssize_t);
         info(time_t);
         info(usec_t);
+#ifdef __GLIBC__
         info(__time_t);
+#endif
         info(pid_t);
         info(gid_t);