1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
|
# serial 1
# See if we need to provide mkfifo replacement.
dnl Copyright (C) 2009 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.
# Written by Eric Blake.
AC_DEFUN([gl_FUNC_MKFIFO],
[
AC_REQUIRE([gl_SYS_STAT_H_DEFAULTS])
AC_CHECK_FUNCS_ONCE([mkfifo])
if test $ac_cv_func_mkfifo = no; then
HAVE_MKFIFO=0
AC_LIBOBJ([mkfifo])
else
dnl Check for Solaris 9 and FreeBSD bug with trailing slash.
AC_CHECK_FUNCS_ONCE([lstat])
AC_CACHE_CHECK([whether mkfifo rejects trailing slashes],
[gl_cv_func_mkfifo_works],
[# Assume that if we have lstat, we can also check symlinks.
if test $ac_cv_func_lstat = yes; then
ln -s conftest.tmp conftest.lnk
fi
AC_RUN_IFELSE(
[AC_LANG_PROGRAM(
[[#include <sys/stat.h>
]], [[if (!mkfifo ("conftest.tmp/", 0600)) return 1;
#if HAVE_LSTAT
if (!mkfifo ("conftest.lnk/", 0600)) return 2;
#endif
]])],
[gl_cv_func_mkfifo_works=yes], [gl_cv_func_mkfifo_works=no],
[gl_cv_func_mkfifo_works="guessing no"])
rm -f conftest.tmp conftest.lnk])
if test "$gl_cv_func_mkfifo_works" != yes; then
AC_DEFINE([MKFIFO_TRAILING_SLASH_BUG], [1], [Define to 1 if mkfifo
does not reject trailing slash])
REPLACE_MKFIFO=1
AC_LIBOBJ([mkfifo])
fi
fi
])
|
