-# lseek.m4 serial 4
-dnl Copyright (C) 2007 Free Software Foundation, Inc.
+# lseek.m4 serial 5
+dnl Copyright (C) 2007, 2009, 2010 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.
/* Exit with success only if stdin is seekable. */
return lseek (0, (off_t)0, SEEK_CUR) < 0;
}],
- [if test -s conftest$ac_exeext \
- && ./conftest$ac_exeext < conftest.$ac_ext \
- && { echo hi | ./conftest$ac_exeext; test $? = 1; }; then
- gl_cv_func_lseek_pipe=yes
- else
- gl_cv_func_lseek_pipe=no
- fi],
- [gl_cv_func_lseek_pipe=no])
+ [if test -s conftest$ac_exeext \
+ && ./conftest$ac_exeext < conftest.$ac_ext \
+ && test 1 = "`echo hi \
+ | { ./conftest$ac_exeext; echo $?; cat >/dev/null; }`"; then
+ gl_cv_func_lseek_pipe=yes
+ else
+ gl_cv_func_lseek_pipe=no
+ fi],
+ [gl_cv_func_lseek_pipe=no])
else
AC_COMPILE_IFELSE([
#if ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__) || defined __BEOS__
/* mingw and BeOS mistakenly return 0 when trying to seek on pipes. */
Choke me.
#endif],
- [gl_cv_func_lseek_pipe=yes], [gl_cv_func_lseek_pipe=no])
+ [gl_cv_func_lseek_pipe=yes], [gl_cv_func_lseek_pipe=no])
fi])
if test $gl_cv_func_lseek_pipe = no; then
gl_REPLACE_LSEEK
AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
REPLACE_LSEEK=1
AC_DEFINE([LSEEK_PIPE_BROKEN], [1],
- [Define to 1 if lseek does not detect pipes.])
+ [Define to 1 if lseek does not detect pipes.])
])