ObjFW  Check-in [62d8cbe31f]

])
AS_IF([test x"$have_subprocesses" = x"yes"], [
	AC_SUBST(OF_SUBPROCESS_M, "OFSubprocess.m")
	AC_DEFINE(OF_HAVE_SUBPROCESSES, 1, [Whether we have subprocesses])
])

AC_CHECK_HEADERS_ONCE([complex.h sys/ioctl.h sys/ttycom.h])
AC_CHECK_FUNCS(isatty)
AC_CHECK_FUNCS(ioctl isatty)

AC_CHECK_FUNC(pledge, [
	AC_DEFINE(OF_HAVE_PLEDGE, 1, [Whether we have pledge()])
])

AS_IF([test x"$objc_runtime" = x"Apple runtime"], [
	AC_CHECK_HEADER(Foundation/NSObject.h, [

#else
	return false;
#endif
}

- (int)columns
{
#if defined(HAVE_SYS_IOCTL_H) && defined(TIOCGWINSZ) && \
#if defined(HAVE_IOCTL) && defined(TIOCGWINSZ) && \
    !defined(OF_AMIGAOS) && !defined(OF_WII_U)
	struct winsize ws;

	if (ioctl(_fd, TIOCGWINSZ, &ws) != 0)
		return -1;

	return ws.ws_col;
#else
	return -1;
#endif
}

- (int)rows
{
#if defined(HAVE_SYS_IOCTL_H) && defined(TIOCGWINSZ) && \
#if defined(HAVE_IOCTL) && defined(TIOCGWINSZ) && \
    !defined(OF_AMIGAOS) && !defined(OF_WII_U)
	struct winsize ws;

	if (ioctl(_fd, TIOCGWINSZ, &ws) != 0)
		return -1;

	return ws.ws_row;

	return false;
# endif
}

static bool
queryNetworkInterfaceIPv4Addresses(OFMutableDictionary *ret)
{
# if defined(HAVE_SYS_IOCTL_H) && defined(HAVE_NET_IF_H)
# if defined(HAVE_IOCTL) && defined(HAVE_NET_IF_H)
	OFStringEncoding encoding = [OFLocale encoding];
	int sock = socket(AF_INET, SOCK_DGRAM, 0);
	struct ifconf ifc;
	struct ifreq *ifrs;
	OFMutableDictionary *interface;
	OFEnumerator *enumerator;