dnl AM_PATH_WIRESHARK([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])

dnl Test for wireshark development files, and define WIRESHARK_CFLAGS,

dnl	WIRESHARK_LIBS and WIRESHARK_VERSION.

dnl

AC_DEFUN([AM_PATH_WIRESHARK],[ 

	AC_ARG_WITH(wireshark-prefix,

	    [  --with-wireshark-prefix=PFX  Prefix where wireshark libraries are installed (optional)],

	    wireshark_config_prefix="$withval", wireshark_config_prefix="")

	wireshark_found=no

	if test "$wireshark_config_prefix" != "" ; then

		AM_PATH_GLIB_2_0(,,,[gmodule])

		WIRESHARK_CFLAGS="-DWS_VAR_IMPORT=extern -DWS_MSVC_NORETURN= -I$wireshark_config_prefix/include/wireshark -I$wireshark_config_prefix/include/wireshark/epan -I/usr/include/wireshark -I/usr/include/wireshark/epan $GLIB_CFLAGS"

		WIRESHARK_LIBS="-L$wireshark_config_prefix/lib -lwireshark -lwiretap $GLIB_LIBS"

		wireshark_found=yes

	else

		PKG_PROG_PKG_CONFIG()

		PKG_CHECK_MODULES(WIRESHARK, wireshark, wireshark_found=yes)

	fi

	ac_save_CFLAGS="$CFLAGS"

	ac_save_CLIBS="$LIBS"

	CFLAGS="$CFLAGS $WIRESHARK_CFLAGS"

	LIBS="$WIRESHARK_LIBS $LIBS"

	min_wireshark_version=ifelse([$1], ,0.0.0,[$1])

	if test $wireshark_found = yes; then

		AC_MSG_CHECKING(for wireshark version >= $min_wireshark_version)

		wireshark_found=no

		AC_TRY_RUN([

#include <stdlib.h>

#include <stdio.h>

#include <string.h>

#include <gmodule.h>

#include <epan/packet.h>

#include <epan/prefs.h>

int 

main()

{

	int ws_major_version, ws_minor_version, ws_micro_version;

	int major, minor, micro;

	char **tmp_version;

	tmp_version = (char *) strdup("$min_wireshark_version");

	major = 0;

	minor = 0;

	micro = 0;

	sscanf(tmp_version, "%d.%d.%d", &major, &minor, µ);

	free(tmp_version);

	tmp_version = (char *) epan_get_version();

	sscanf(tmp_version, "%d.%d.%d",

	    &ws_major_version, &ws_minor_version, &ws_micro_version);

	if (ws_major_version > major ||

	    (ws_major_version == major && ws_minor_version > minor) ||

	    (ws_major_version == major && ws_minor_version == minor &&

	    ws_micro_version >= micro))

		return 0;

	printf("\n*** An old version of wireshark (%d.%d.%d) was found.\n",

	    ws_major_version, ws_minor_version, ws_micro_version);

	printf("*** You need a version of wireshark not older than %d.%d.%d. ",

	    major, minor, micro);

	return 1;

}

		], wireshark_found=yes)

	fi

	if test "$wireshark_found" != no; then

		AC_LANG_PUSH(C)

		AC_LINK_IFELSE([AC_LANG_PROGRAM([

#include <stdlib.h>

#include <stdio.h>

#include <string.h>

#include <gmodule.h>

#include <epan/packet.h>

#include <epan/prefs.h>

], [puts(epan_get_version());])], [WIRESHARK_VERSION=`./conftest$ac_exeext`],

wireshark_found=no)

		AC_LANG_POP

	fi

	CFLAGS="$ac_save_CFLAGS"

	LIBS="$ac_save_LIBS"

	if test "$wireshark_found" != no; then

		AC_MSG_RESULT(yes)

		ifelse([$2],, :, [$2])     

	else

		AC_MSG_RESULT(no)

		WIRESHARK_CFLAGS=""

		WIRESHARK_LIBS=""

		WIRESHARK_VERSION=""

		ifelse([$3], , :, [$3])

	fi

	AC_SUBST(WIRESHARK_CFLAGS)

	AC_SUBST(WIRESHARK_LIBS)

	AC_SUBST(WIRESHARK_VERSION)

])