+#endif
+
+
+#if @GNULIB_RPMATCH@
+# if !@HAVE_RPMATCH@
+/* Test a user response to a question.
+ Return 1 if it is affirmative, 0 if it is negative, or -1 if not clear. */
+extern int rpmatch (const char *response);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef rpmatch
+# define rpmatch(r) \
+ (GL_LINK_WARNING ("rpmatch is unportable - " \
+ "use gnulib module rpmatch for portability"), \
+ rpmatch (r))
+#endif
+
+
+#if @GNULIB_SETENV@
+# if !@HAVE_SETENV@
+/* Set NAME to VALUE in the environment.
+ If REPLACE is nonzero, overwrite an existing value. */
+extern int setenv (const char *name, const char *value, int replace);
+# endif
+#endif
+
+
+#if @GNULIB_UNSETENV@
+# if @HAVE_UNSETENV@
+# if @VOID_UNSETENV@
+/* On some systems, unsetenv() returns void.
+ This is the case for MacOS X 10.3, FreeBSD 4.8, NetBSD 1.6, OpenBSD 3.4. */
+# define unsetenv(name) ((unsetenv)(name), 0)
+# endif
+# else
+/* Remove the variable NAME from the environment. */
+extern int unsetenv (const char *name);
+# endif
+#endif
+
+
+#if @GNULIB_STRTOD@
+# if @REPLACE_STRTOD@
+# define strtod rpl_strtod
+# endif
+# if !@HAVE_STRTOD@ || @REPLACE_STRTOD@
+ /* Parse a double from STRING, updating ENDP if appropriate. */
+extern double strtod (const char *str, char **endp);
+# endif