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PHP_ARG_ENABLE([posix],
  [whether to enable POSIX-like functions],
  [AS_HELP_STRING([--disable-posix],
    [Disable POSIX-like functions])],
  [yes])

if test "$PHP_POSIX" = "yes"; then
  AC_DEFINE(HAVE_POSIX, 1, [whether to include POSIX-like functions])
  PHP_NEW_EXTENSION(posix, posix.c, $ext_shared,, -DZEND_ENABLE_STATIC_TSRMLS_CACHE=1)

  AC_CHECK_HEADERS([sys/mkdev.h sys/sysmacros.h])

  AC_CHECK_FUNCS(seteuid setegid setsid getsid setpgid getpgid ctermid mkfifo mknod setrlimit getrlimit getlogin getgroups makedev initgroups getpwuid_r getgrgid_r)

  AC_MSG_CHECKING([for working ttyname_r() implementation])
  AC_RUN_IFELSE([AC_LANG_SOURCE([[
#include <unistd.h>

int main(int argc, char *argv[])
{
	char buf[64];

	return !ttyname_r(0, buf, 64);
}
  ]])],[
    AC_MSG_RESULT([yes])
    AC_DEFINE(HAVE_TTYNAME_R, 1, [Whether you have a working ttyname_r])
  ],[
    AC_MSG_RESULT([no, posix_ttyname() will be thread-unsafe])
  ], [
    AC_MSG_RESULT([no, cannot detect working ttyname_r() when cross compiling. posix_ttyname() will be thread-unsafe])
  ])

  AC_CACHE_CHECK([for utsname.domainname], ac_cv_have_utsname_domainname, [
    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
      #define _GNU_SOURCE
      #include <sys/utsname.h>
    ]],[[
      return sizeof(((struct utsname *)0)->domainname);
    ]])],[
      ac_cv_have_utsname_domainname=yes
    ],[
      ac_cv_have_utsname_domainname=no
    ])
  ])
  if test "$ac_cv_have_utsname_domainname" = yes; then
    AC_DEFINE(HAVE_UTSNAME_DOMAINNAME, 1, [Whether struct utsname has domainname])
  fi
fi