#ifndef NSSWITCH_INTERNAL_H
#define NSSWITCH_INTERNAL_H
+#include <features.h>
#include "config.h"
/* glibc/config.h.in */
-#if defined USE_REGPARMS && !defined PROF && !defined __BOUNDED_POINTERS__
+#if __GLIBC_PREREQ(2, 27)
+# define internal_function
+#elif defined USE_REGPARMS && !defined PROF && !defined __BOUNDED_POINTERS__
# define internal_function __attribute__ ((regparm (3), stdcall))
#else
# define internal_function