#else
/* Normal invocation convention. */
-#ifdef __DECC
+#if defined __DECC && __DECC_VER >= 60000000
# include_next <stdio.h>
#endif
#ifndef _GL_STDIO_H
#define _GL_STDIO_H
-#ifndef __DECC
+#if !(defined __DECC && __DECC_VER >= 60000000)
# include @ABSOLUTE_STDIO_H@
#endif
#include <stdarg.h>
#include <stddef.h>
+#if (@GNULIB_FFLUSH@ && @REPLACE_FFLUSH@) || (@GNULIB_FSEEKO@ && !@HAVE_FSEEKO@) || (@GNULIB_FTELLO@ && !@HAVE_FTELLO@)
+/* Get off_t. */
+# include <sys/types.h>
+#endif
+
#ifndef __attribute__
/* This feature is available in gcc versions 2.5 and later. */
# if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 5) || __STRICT_ANSI__
#endif
#if @GNULIB_FFLUSH@ && @REPLACE_FFLUSH@
-# define fflush rpl_fflush
+/* Provide fseek, fseeko functions that are aware of a preceding fflush(). */
+# define fseeko rpl_fseeko
+extern int fseeko (FILE *fp, off_t offset, int whence);
+# define fseek(fp, offset, whence) fseeko (fp, (off_t)(offset), whence)
+#elif @GNULIB_FSEEKO@
+# if !@HAVE_FSEEKO@
+/* Assume 'off_t' is the same type as 'long'. */
+typedef int verify_fseeko_types[2 * (sizeof (off_t) == sizeof (long)) - 1];
+# define fseeko fseek
+# endif
+#else
+# undef fseeko
+# define fseeko(f,o,w) \
+ (GL_LINK_WARNING ("fseeko is unportable - " \
+ "use gnulib module fseeko for portability"), \
+ fseeko (f, o, w))
+#endif
+
+#if defined GNULIB_POSIXCHECK
+# ifndef fseek
+# define fseek(f,o,w) \
+ (GL_LINK_WARNING ("fseek cannot handle files larger than 4 GB " \
+ "on 32-bit platforms - " \
+ "use fseeko function for handling of large files"), \
+ fseek (f, o, w))
+# endif
+#endif
+
+#if @GNULIB_FTELLO@
+# if !@HAVE_FTELLO@
+/* Assume 'off_t' is the same type as 'long'. */
+typedef int verify_ftello_types[2 * (sizeof (off_t) == sizeof (long)) - 1];
+# define ftello ftell
+# endif
+#else
+# undef ftello
+# define ftello(f) \
+ (GL_LINK_WARNING ("ftello is unportable - " \
+ "use gnulib module ftello for portability"), \
+ ftello (f))
+#endif
+
+#if defined GNULIB_POSIXCHECK
+# ifndef ftell
+# define ftell(f) \
+ (GL_LINK_WARNING ("ftell cannot handle files larger than 4 GB " \
+ "on 32-bit platforms - " \
+ "use ftello function for handling of large files"), \
+ ftell (f))
+# endif
+#endif
+
+#if @GNULIB_FFLUSH@
+# if @REPLACE_FFLUSH@
+# define fflush rpl_fflush
/* Flush all pending data on STREAM according to POSIX rules. Both
output and seekable input streams are supported. */
extern int fflush (FILE *gl_stream);
+# endif
+#elif defined GNULIB_POSIXCHECK
+# undef fflush
+# define fflush(f) \
+ (GL_LINK_WARNING ("fflush is not always POSIX compliant - " \
+ "use gnulib module fflush for portable " \
+ "POSIX compliance"), \
+ fflush (f))
#endif
#ifdef __cplusplus