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authorPaul Eggert <eggert@cs.ucla.edu>2023-02-04 14:45:11 -0800
committerPaul Eggert <eggert@cs.ucla.edu>2023-02-04 15:14:16 -0800
commit04d97e76a96854a9a9f4778cb1202a87537731de (patch)
tree9c70da51ec099c2c1c0ca95dbace29190e563f8a /m4/pipe2.m4
parent7e1c7db1cb5a33a66115bb767224bdc79a257266 (diff)
downloademacs-04d97e76a96854a9a9f4778cb1202a87537731de.tar.gz
Update from Gnulib by running admin/merge-gnulib
Diffstat (limited to 'm4/pipe2.m4')
-rw-r--r--m4/pipe2.m49
1 files changed, 7 insertions, 2 deletions
diff --git a/m4/pipe2.m4 b/m4/pipe2.m4
index 501f3a4303d..79de69cd1a4 100644
--- a/m4/pipe2.m4
+++ b/m4/pipe2.m4
@@ -1,4 +1,4 @@
-# pipe2.m4 serial 2
+# pipe2.m4 serial 4
dnl Copyright (C) 2009-2023 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -11,8 +11,13 @@ AC_DEFUN([gl_FUNC_PIPE2],
dnl Persuade glibc <unistd.h> to declare pipe2().
AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
- AC_CHECK_FUNCS_ONCE([pipe2])
+ gl_CHECK_FUNCS_ANDROID([pipe2], [[#include <unistd.h>]])
if test $ac_cv_func_pipe2 != yes; then
HAVE_PIPE2=0
+ case "$gl_cv_onwards_func_pipe2" in
+ future*) REPLACE_PIPE2=1 ;;
+ esac
+ else
+ REPLACE_PIPE2=1
fi
])