AC_ARG_WITH(wifi,
  [AC_HELP_STRING(--with-wifi,
    [enable support for wireless tools @<:@default=check@:>@])],
  [], with_wifi=check)

kde_libiw_installed=no
if test "x$with_wifi" != xno; then
	AC_LANG_SAVE
	AC_LANG_CPLUSPLUS
	AC_MSG_CHECKING([if wireless tools >= 25 are installed])
	AC_TRY_COMPILE(
	[
		#include <iwlib.h>
		#ifndef PROC_NET_DEV
		#define PROC_NET_DEV "/proc/net/dev"
		#endif
	],
	[
                const char *s = PROC_NET_DEV;
	        iw_enum_devices(0, 0, 0, 0);
	],
		kde_libiw_installed=yes
		AC_MSG_RESULT(yes)
	,
		kde_libiw_installed=no
		AC_MSG_RESULT(no)
	)

	AC_MSG_CHECKING([if wireless tools >= 27 are installed])
	AC_TRY_COMPILE(
	[
		#include <iwlib.h>
	],
	[
	 	// checking how many arguments does it iw_get_stats want
		// the result is unimportant
		struct wireless_info info;
		char * stupid;
		iw_get_stats(iw_sockets_open(), stupid, &(info.stats));
		       
	],	AC_MSG_RESULT(no)
	,
               AC_MSG_RESULT(yes)
	       AC_DEFINE(HAVE_IW_27, 1, [Define if you have iwlib newer than 26])

         AC_MSG_CHECKING([if wireless tools >= 27pre19 are installed])
         AC_TRY_COMPILE(
	 [
		#include <iwlib.h>
	 ],
	 [
	 	// checking if wireless_info got a b.has_freq field
		struct wireless_info info;
		info.b.freq = 1;
		       
	 ],	[AC_MSG_RESULT(yes)
		 AC_DEFINE(HAVE_IW_27pre19, 1, [Define if you have iwlib newer than 27pre18])

	 ],
               AC_MSG_RESULT(no)
        )
	
	)

	AC_LANG_RESTORE

	if test "x$with_wifi" != xcheck && test "x$kde_libiw_installed" = xno; then
		AC_MSG_ERROR([--with-wifi was given, but test for wireless-tools failed])
	fi
fi

if test "$kde_libiw_installed" = "no"; then
	DO_NOT_COMPILE="$DO_NOT_COMPILE wifi"
fi