From a398d2c2b5fd6ab0545d8bb019f9a970b2309404 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 15 Apr 2024 21:16:34 +0200 Subject: Adding upstream version 3.6. Signed-off-by: Daniel Baumann --- m4/fpending.m4 | 36 ++++++++++++++++++++++++++++++++++++ 1 file changed, 36 insertions(+) create mode 100644 m4/fpending.m4 (limited to 'm4/fpending.m4') diff --git a/m4/fpending.m4 b/m4/fpending.m4 new file mode 100644 index 0000000..6991f81 --- /dev/null +++ b/m4/fpending.m4 @@ -0,0 +1,36 @@ +# serial 23 + +# Copyright (C) 2000-2001, 2004-2023 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. + +dnl From Jim Meyering +dnl Using code from emacs, based on suggestions from Paul Eggert +dnl and Ulrich Drepper. + +dnl Find out how to determine the number of pending output bytes on a stream. +dnl glibc (2.1.93 and newer) and Solaris provide __fpending. On other systems, +dnl we have to grub around in the (possibly opaque) FILE struct. + +AC_DEFUN([gl_FUNC_FPENDING], +[ + AC_CHECK_HEADERS_ONCE([stdio_ext.h]) + fp_headers=' + #include + #if HAVE_STDIO_EXT_H + # include + #endif + ' + AC_CACHE_CHECK([for __fpending], [gl_cv_func___fpending], + [ + AC_LINK_IFELSE( + [AC_LANG_PROGRAM([[$fp_headers]], + [[return ! __fpending (stdin);]])], + [gl_cv_func___fpending=yes], + [gl_cv_func___fpending=no]) + ]) + if test $gl_cv_func___fpending = yes; then + AC_CHECK_DECLS([__fpending], [], [], [$fp_headers]) + fi +]) -- cgit v1.2.3