-# fflush.m4 serial 13
+# fflush.m4 serial 15
-# Copyright (C) 2007-2012 Free Software Foundation, Inc.
+# Copyright (C) 2007-2013 Free Software Foundation, Inc.
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
[
AC_REQUIRE([gl_STDIO_H_DEFAULTS])
gl_FUNC_FFLUSH_STDIN
- if test $gl_cv_func_fflush_stdin = no; then
+ if test $gl_cv_func_fflush_stdin != yes; then
REPLACE_FFLUSH=1
fi
])
return 7;
return 0;
]])], [gl_cv_func_fflush_stdin=yes], [gl_cv_func_fflush_stdin=no],
- [dnl Pessimistically assume fflush is broken.
- gl_cv_func_fflush_stdin=no])
+ [gl_cv_func_fflush_stdin=cross])
rm conftest.txt
])
+ case $gl_cv_func_fflush_stdin in
+ yes) gl_func_fflush_stdin=1 ;;
+ no) gl_func_fflush_stdin=0 ;;
+ *) gl_func_fflush_stdin='(-1)' ;;
+ esac
+ AC_DEFINE_UNQUOTED([FUNC_FFLUSH_STDIN], [$gl_func_fflush_stdin],
+ [Define to 1 if fflush is known to work on stdin as per POSIX.1-2008,
+ 0 if fflush is known to not work, -1 if unknown.])
])
# Prerequisites of lib/fflush.c.
-AC_DEFUN([gl_PREREQ_FFLUSH],
-[
- AC_REQUIRE([AC_C_INLINE])
- :
-])
+AC_DEFUN([gl_PREREQ_FFLUSH], [:])