+#if @GNULIB_PRINTF_POSIX@
+# if @REPLACE_PRINTF@
+/* Don't break __attribute__((format(printf,M,N))). */
+# define printf __printf__
+extern int printf (const char *format, ...)
+ __attribute__ ((__format__ (__printf__, 1, 2)));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef printf
+# define printf \
+ (GL_LINK_WARNING ("printf is not always POSIX compliant - " \
+ "use gnulib module printf-posix for portable " \
+ "POSIX compliance"), \
+ printf)
+/* Don't break __attribute__((format(printf,M,N))). */
+# define format(kind,m,n) format (__##kind##__, m, n)
+# define __format__(kind,m,n) __format__ (__##kind##__, m, n)
+# define ____printf____ __printf__
+# define ____scanf____ __scanf__
+# define ____strftime____ __strftime__
+# define ____strfmon____ __strfmon__
+#endif
+
+#if @GNULIB_VPRINTF_POSIX@
+# if @REPLACE_VPRINTF@
+# define vprintf rpl_vprintf
+extern int vprintf (const char *format, va_list args)
+ __attribute__ ((__format__ (__printf__, 1, 0)));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef vprintf
+# define vprintf(f,a) \
+ (GL_LINK_WARNING ("vprintf is not always POSIX compliant - " \
+ "use gnulib module vprintf-posix for portable " \
+ "POSIX compliance"), \
+ vprintf (f, a))
+#endif
+