diff --git a/ext/standard/config.m4 b/ext/standard/config.m4
index dc5dc1b472b48..71e9260b37be8 100644
--- a/ext/standard/config.m4
+++ b/ext/standard/config.m4
@@ -345,7 +345,7 @@ dnl
 
 PHP_CHECK_FUNC(res_search, resolv, socket)
 
-AC_CHECK_FUNCS([posix_spawn_file_actions_addchdir_np])
+AC_CHECK_FUNCS([posix_spawn_file_actions_addchdir_np elf_aux_info])
 
 dnl
 dnl Obsolete check for strptime() declaration. The strptime, where available,
diff --git a/ext/standard/crc32.c b/ext/standard/crc32.c
index 9b598489d3f0b..d9ccd78feb53b 100644
--- a/ext/standard/crc32.c
+++ b/ext/standard/crc32.c
@@ -28,7 +28,7 @@
 #  include <asm/hwcap.h>
 # elif defined(__APPLE__)
 #  include <sys/sysctl.h>
-# elif defined(__FreeBSD__)
+# elif defined(HAVE_ELF_AUX_INFO)
 #  include <sys/auxv.h>
 
 static unsigned long getauxval(unsigned long key) {