+#if @GNULIB_POPEN@
+# if @REPLACE_POPEN@
+# undef popen
+# define popen rpl_popen
+extern FILE *popen (const char *cmd, const char *mode);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef popen
+# define popen(c,m) \
+ (GL_LINK_WARNING ("popen is buggy on some platforms - " \
+ "use gnulib module popen or pipe for more portability"), \
+ popen (c, m))
+#endif
+
+#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 @GNULIB_PRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
+/* Don't break __attribute__((format(printf,M,N))). */
+# define printf __printf__
+extern int printf (const char *format, ...)
+ __attribute__ ((__format__ (__printf__, 1, 2)));
+#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_PUTC@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
+# undef putc
+# define putc rpl_fputc
+extern int putc (int c, FILE *stream);
+#endif
+
+#if @GNULIB_PUTCHAR@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
+# undef putchar
+# define putchar rpl_putchar
+extern int putchar (int c);
+#endif
+
+#if @GNULIB_PUTS@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
+# undef puts
+# define puts rpl_puts
+extern int puts (const char *string);
+#endif
+
+#if @GNULIB_REMOVE@
+# if @REPLACE_REMOVE@
+# undef remove
+# define remove rpl_remove
+extern int remove (const char *name);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef remove
+# define remove(n) \
+ (GL_LINK_WARNING ("remove cannot handle directories on some platforms - " \
+ "use gnulib module remove for more portability"), \
+ remove (n))
+#endif
+
+#if @GNULIB_RENAME@
+# if @REPLACE_RENAME@
+# undef rename
+# define rename rpl_rename
+extern int rename (const char *old, const char *new);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef rename
+# define rename(o,n) \
+ (GL_LINK_WARNING ("rename is buggy on some platforms - " \
+ "use gnulib module rename for more portability"), \
+ rename (o, n))
+#endif
+
+#if @GNULIB_RENAMEAT@
+# if @REPLACE_RENAMEAT@
+# undef renameat
+# define renameat rpl_renameat
+# endif
+# if !@HAVE_RENAMEAT@ || @REPLACE_RENAMEAT@
+extern int renameat (int fd1, char const *file1, int fd2, char const *file2);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef renameat
+# define renameat(d1,f1,d2,f2) \
+ (GL_LINK_WARNING ("renameat is not portable - " \
+ "use gnulib module renameat for portability"), \
+ renameat (d1, f1, d2, f2))
+#endif
+
+#if @GNULIB_SNPRINTF@
+# if @REPLACE_SNPRINTF@
+# define snprintf rpl_snprintf
+# endif
+# if @REPLACE_SNPRINTF@ || !@HAVE_DECL_SNPRINTF@
+extern int snprintf (char *str, size_t size, const char *format, ...)
+ __attribute__ ((__format__ (__printf__, 3, 4)));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef snprintf
+# define snprintf \
+ (GL_LINK_WARNING ("snprintf is unportable - " \
+ "use gnulib module snprintf for portability"), \
+ snprintf)
+#endif
+
+#if @GNULIB_SPRINTF_POSIX@
+# if @REPLACE_SPRINTF@
+# define sprintf rpl_sprintf
+extern int sprintf (char *str, const char *format, ...)
+ __attribute__ ((__format__ (__printf__, 2, 3)));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef sprintf
+# define sprintf \
+ (GL_LINK_WARNING ("sprintf is not always POSIX compliant - " \
+ "use gnulib module sprintf-posix for portable " \
+ "POSIX compliance"), \
+ sprintf)
+#endif
+
+#if @GNULIB_VASPRINTF@
+# if @REPLACE_VASPRINTF@
+# define asprintf rpl_asprintf
+# define vasprintf rpl_vasprintf
+# endif
+# if @REPLACE_VASPRINTF@ || !@HAVE_VASPRINTF@
+ /* Write formatted output to a string dynamically allocated with malloc().
+ If the memory allocation succeeds, store the address of the string in
+ *RESULT and return the number of resulting bytes, excluding the trailing
+ NUL. Upon memory allocation error, or some other error, return -1. */
+ extern int asprintf (char **result, const char *format, ...)
+ __attribute__ ((__format__ (__printf__, 2, 3)));
+ extern int vasprintf (char **result, const char *format, va_list args)
+ __attribute__ ((__format__ (__printf__, 2, 0)));
+# endif
+#endif
+
+#if @GNULIB_VDPRINTF@
+# if @REPLACE_VDPRINTF@
+# define vdprintf rpl_vdprintf
+# endif
+# if @REPLACE_VDPRINTF@ || !@HAVE_VDPRINTF@
+extern int vdprintf (int fd, const char *format, va_list args)
+ __attribute__ ((__format__ (__printf__, 2, 0)));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef vdprintf
+# define vdprintf(d,f,a) \
+ (GL_LINK_WARNING ("vdprintf is unportable - " \
+ "use gnulib module vdprintf for portability"), \
+ vdprintf (d, f, a))
+#endif
+
+#if @GNULIB_VFPRINTF_POSIX@
+# if @REPLACE_VFPRINTF@
+# define vfprintf rpl_vfprintf
+extern int vfprintf (FILE *fp, const char *format, va_list args)
+ __attribute__ ((__format__ (__printf__, 2, 0)));
+# endif
+#elif @GNULIB_VFPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
+# define vfprintf rpl_vfprintf
+extern int vfprintf (FILE *fp, const char *format, va_list args)
+ __attribute__ ((__format__ (__printf__, 2, 0)));
+#elif defined GNULIB_POSIXCHECK
+# undef vfprintf
+# define vfprintf(s,f,a) \
+ (GL_LINK_WARNING ("vfprintf is not always POSIX compliant - " \
+ "use gnulib module vfprintf-posix for portable " \
+ "POSIX compliance"), \
+ vfprintf (s, f, a))
+#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 @GNULIB_VPRINTF@ && @REPLACE_STDIO_WRITE_FUNCS@ && @GNULIB_STDIO_H_SIGPIPE@
+# define vprintf rpl_vprintf
+extern int vprintf (const char *format, va_list args)
+ __attribute__ ((__format__ (__printf__, 1, 0)));
+#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
+
+#if @GNULIB_VSNPRINTF@
+# if @REPLACE_VSNPRINTF@
+# define vsnprintf rpl_vsnprintf
+# endif
+# if @REPLACE_VSNPRINTF@ || !@HAVE_DECL_VSNPRINTF@
+extern int vsnprintf (char *str, size_t size, const char *format, va_list args)
+ __attribute__ ((__format__ (__printf__, 3, 0)));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef vsnprintf
+# define vsnprintf(b,s,f,a) \
+ (GL_LINK_WARNING ("vsnprintf is unportable - " \
+ "use gnulib module vsnprintf for portability"), \
+ vsnprintf (b, s, f, a))
+#endif
+
+#if @GNULIB_VSPRINTF_POSIX@
+# if @REPLACE_VSPRINTF@
+# define vsprintf rpl_vsprintf
+extern int vsprintf (char *str, const char *format, va_list args)
+ __attribute__ ((__format__ (__printf__, 2, 0)));
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef vsprintf
+# define vsprintf(b,f,a) \
+ (GL_LINK_WARNING ("vsprintf is not always POSIX compliant - " \
+ "use gnulib module vsprintf-posix for portable " \
+ "POSIX compliance"), \
+ vsprintf (b, f, a))
+#endif
+