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changeset 8699:996bed2dc377

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Make fflush rely on fpurge. * lib/fflush.c (rpl_fflush): Rely on fpurge module, rather than open coding all variants. * modules/fflush (Depends-on): Add fpurge and unistd. * modules/fflush-tests (Depends-on): Unistd is no longer extra. * m4/fflush.m4 (gl_REPLACE_FFLUSH): Simplify.
author Eric Blake <ebb9@byu.net>
date Tue, 17 Apr 2007 03:38:08 +0000
parents ae4587be462b
children f82b54db5bb8
files m4/fflush.m4
diffstat 1 files changed, 1 insertions(+), 11 deletions(-) [+]
line wrap: on
line diff
--- a/m4/fflush.m4
+++ b/m4/fflush.m4
@@ -8,8 +8,7 @@
 dnl From Eric Blake
 
 dnl Find out how to obey POSIX semantics of fflush(stdin) discarding
-dnl unread input, rather than C99 undefined semantics.  fpurge is not
-dnl standardized, but has the desired properties.
+dnl unread input on seekable streams, rather than C99 undefined semantics.
 
 AC_DEFUN([gl_FUNC_FFLUSH],
 [
@@ -45,15 +44,6 @@
 
 AC_DEFUN([gl_REPLACE_FFLUSH],
 [
-  AC_CHECK_HEADERS_ONCE([stdio_ext.h])
-  AC_CHECK_FUNCS_ONCE([fpurge __fpurge])
-dnl Linux documents int fpurge(), but only declares void __fpurge().
-  AC_CHECK_DECLS([fpurge], [], [], [[
-#include <stdio.h>
-#if HAVE_STDIO_EXT_H
-# include <stdio_ext.h>
-#endif
-]])
   AC_LIBOBJ([fflush])
   AC_REQUIRE([gl_STDIO_H_DEFAULTS])
   REPLACE_FFLUSH=1