+#if @GNULIB_RANDOM_R@
+# if !@HAVE_RANDOM_R@
+
+# ifndef RAND_MAX
+# define RAND_MAX 2147483647
+# endif
+
+int srandom_r (unsigned int seed, struct random_data *rand_state);
+int initstate_r (unsigned int seed, char *buf, size_t buf_size,
+ struct random_data *rand_state);
+int setstate_r (char *arg_state, struct random_data *rand_state);
+int random_r (struct random_data *buf, int32_t *result);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef random_r
+# define random_r(b,r) \
+ (GL_LINK_WARNING ("random_r is unportable - " \
+ "use gnulib module random_r for portability"), \
+ random_r (b,r))
+# undef initstate_r
+# define initstate_r(s,b,sz,r) \
+ (GL_LINK_WARNING ("initstate_r is unportable - " \
+ "use gnulib module random_r for portability"), \
+ initstate_r (s,b,sz,r))
+# undef srandom_r
+# define srandom_r(s,r) \
+ (GL_LINK_WARNING ("srandom_r is unportable - " \
+ "use gnulib module random_r for portability"), \
+ srandom_r (s,r))
+# undef setstate_r
+# define setstate_r(a,r) \
+ (GL_LINK_WARNING ("setstate_r is unportable - " \
+ "use gnulib module random_r for portability"), \
+ setstate_r (a,r))
+#endif
+
+#if @GNULIB_REALLOC_POSIX@
+# if !@HAVE_REALLOC_POSIX@
+# undef realloc
+# define realloc rpl_realloc
+extern void * realloc (void *ptr, size_t size);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef realloc
+# define realloc(p,s) \
+ (GL_LINK_WARNING ("realloc is not POSIX compliant everywhere - " \
+ "use gnulib module realloc-posix for portability"), \
+ realloc (p, s))
+#endif
+
+#if @GNULIB_REALPATH@
+# if @REPLACE_REALPATH@
+# define realpath rpl_realpath
+# endif
+# if !@HAVE_REALPATH@ || @REPLACE_REALPATH@
+extern char *realpath (const char *name, char *resolved);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef realpath
+# define realpath(n,r) \
+ (GL_LINK_WARNING ("realpath is unportable - use gnulib module " \
+ "canonicalize or canonicalize-lgpl for portability"), \
+ realpath (n, r))
+#endif