diff options
Diffstat (limited to 'gl/m4/fseeko.m4')
| -rw-r--r-- | gl/m4/fseeko.m4 | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/gl/m4/fseeko.m4 b/gl/m4/fseeko.m4 new file mode 100644 index 0000000000..3d77365688 --- /dev/null +++ b/gl/m4/fseeko.m4 @@ -0,0 +1,34 @@ +# fseeko.m4 serial 4 +dnl Copyright (C) 2007-2008 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_FSEEKO], +[ + AC_REQUIRE([gl_STDIO_H_DEFAULTS]) + AC_REQUIRE([AC_PROG_CC]) + AC_REQUIRE([gl_STDIN_LARGE_OFFSET]) + + dnl Persuade glibc <stdio.h> to declare fseeko(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + AC_CACHE_CHECK([for fseeko], [gl_cv_func_fseeko], + [ + AC_TRY_LINK([#include <stdio.h>], [fseeko (stdin, 0, 0);], + [gl_cv_func_fseeko=yes], [gl_cv_func_fseeko=no]) + ]) + if test $gl_cv_func_fseeko = no; then + HAVE_FSEEKO=0 + gl_REPLACE_FSEEKO + elif test $gl_cv_var_stdin_large_offset = no; then + gl_REPLACE_FSEEKO + fi +]) + +AC_DEFUN([gl_REPLACE_FSEEKO], +[ + AC_LIBOBJ([fseeko]) + AC_REQUIRE([gl_STDIO_H_DEFAULTS]) + REPLACE_FSEEKO=1 +]) |