+/* Map any int, typically from errno, into an error message. Multithread-safe.
+ Uses the POSIX declaration, not the glibc declaration. */
+#if @GNULIB_STRERROR_R@
+# if @REPLACE_STRERROR_R@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef strerror_r
+# define strerror_r rpl_strerror_r
+# endif
+_GL_FUNCDECL_RPL (strerror_r, int, (int errnum, char *buf, size_t buflen)
+ _GL_ARG_NONNULL ((2)));
+_GL_CXXALIAS_RPL (strerror_r, int, (int errnum, char *buf, size_t buflen));
+# else
+# if !@HAVE_DECL_STRERROR_R@
+_GL_FUNCDECL_SYS (strerror_r, int, (int errnum, char *buf, size_t buflen)
+ _GL_ARG_NONNULL ((2)));
+# endif
+_GL_CXXALIAS_SYS (strerror_r, int, (int errnum, char *buf, size_t buflen));
+# endif
+# if @HAVE_DECL_STRERROR_R@
+_GL_CXXALIASWARN (strerror_r);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef strerror_r
+# if HAVE_RAW_DECL_STRERROR_R
+_GL_WARN_ON_USE (strerror_r, "strerror_r is unportable - "
+ "use gnulib module strerror_r-posix for portability");
+# endif
+#endif
+