-# stdio_h.m4 serial 3
+# stdio_h.m4 serial 6
dnl Copyright (C) 2007 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
GNULIB_VSNPRINTF=0; AC_SUBST([GNULIB_VSNPRINTF])
GNULIB_VSPRINTF_POSIX=0; AC_SUBST([GNULIB_VSPRINTF_POSIX])
GNULIB_VASPRINTF=0; AC_SUBST([GNULIB_VASPRINTF])
+ GNULIB_FSEEK=0; AC_SUBST([GNULIB_FSEEK])
+ GNULIB_FSEEKO=0; AC_SUBST([GNULIB_FSEEKO])
+ GNULIB_FTELL=0; AC_SUBST([GNULIB_FTELL])
+ GNULIB_FTELLO=0; AC_SUBST([GNULIB_FTELLO])
GNULIB_FFLUSH=0; AC_SUBST([GNULIB_FFLUSH])
dnl Assume proper GNU behavior unless another module says otherwise.
REPLACE_FPRINTF=0; AC_SUBST([REPLACE_FPRINTF])
REPLACE_VSPRINTF=0; AC_SUBST([REPLACE_VSPRINTF])
HAVE_VASPRINTF=1; AC_SUBST([HAVE_VASPRINTF])
REPLACE_VASPRINTF=0; AC_SUBST([REPLACE_VASPRINTF])
+ HAVE_FSEEKO=1; AC_SUBST([HAVE_FSEEKO])
+ REPLACE_FSEEKO=0; AC_SUBST([REPLACE_FSEEKO])
+ REPLACE_FSEEK=0; AC_SUBST([REPLACE_FSEEK])
+ HAVE_FTELLO=1; AC_SUBST([HAVE_FTELLO])
+ REPLACE_FTELLO=0; AC_SUBST([REPLACE_FTELLO])
+ REPLACE_FTELL=0; AC_SUBST([REPLACE_FTELL])
REPLACE_FFLUSH=0; AC_SUBST([REPLACE_FFLUSH])
])
+
+dnl Code shared by fseeko and ftello. Determine if large files are supported,
+dnl but stdin does not start as a large file by default.
+AC_DEFUN([gl_STDIN_LARGE_OFFSET],
+ [
+ AC_CACHE_CHECK([whether stdin defaults to large file offsets],
+ [gl_cv_var_stdin_large_offset],
+ [AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <stdio.h>],
+[#if defined __SL64 && defined __SCLE /* cygwin */
+ /* Cygwin 1.5.24 and earlier fail to put stdin in 64-bit mode, making
+ fseeko/ftello needlessly fail. This bug was fixed at the same time
+ that cygwin started exporting asnprintf (cygwin 1.7.0), so we use
+ that as a link-time test for cross-compiles rather than building
+ a runtime test. */
+ size_t s;
+ if (asnprintf (NULL, &s, ""))
+ return 0;
+#endif])],
+ [gl_cv_var_stdin_large_offset=yes],
+ [gl_cv_var_stdin_large_offset=no])])
+])