-
-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 in 1.5.25, and
- it is easier to do a version check than building a runtime test. */
-# include <cygwin/version.h>
-# if CYGWIN_VERSION_DLL_COMBINED < CYGWIN_VERSION_DLL_MAKE_COMBINED (1005, 25)
- choke me
-# endif
-#endif]])],
- [gl_cv_var_stdin_large_offset=yes],
- [gl_cv_var_stdin_large_offset=no])])
-])