diff --git a/configure.ac b/configure.ac
index 2ed09129..beb4e5e3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -859,9 +859,14 @@ if (&getentropy != NULL) {
   [AC_MSG_RESULT(no)
   ])
 ])
-AC_CHECK_FUNCS([posix_memalign getpid nanosleep])
+
+AS_IF([test "x$WASI" = "x"],[
+  AC_CHECK_FUNCS([getpid])
+  AC_CHECK_FUNCS([getauxva elf_aux_info])
+])
+
+AC_CHECK_FUNCS([posix_memalign nanosleep])
 AC_CHECK_FUNCS([memset_s explicit_bzero explicit_memset])
-AC_CHECK_FUNCS([getauxva elf_aux_info])
 
 AC_SUBST([LIBTOOL_EXTRA_FLAGS])