Redo the way we map between libpcap encapsulation type codes and Wiretap

[obnox/wireshark/wip.git] / wiretap / acinclude.m4

diff --git a/wiretap/acinclude.m4 b/wiretap/acinclude.m4
index 359e92c24176e433c959a532e8af83550ba866ef..131c1b0e30aec76e7cf0062676e387ee69a65b09 100644 (file)
--- a/wiretap/acinclude.m4
+++ b/wiretap/acinclude.m4
@@ -1,3 +1,10 @@
+dnl Macros that test for specific features.
+dnl This file is part of the Autoconf packaging for Ethereal.
+dnl Copyright (C) 1998-2000 by Gerald Combs.
+dnl
+dnl $Id: acinclude.m4,v 1.6 2000/08/25 06:25:20 guy Exp $
+dnl
+
 # Configure paths for GLIB
 # Owen Taylor     97-11-3
 
@@ -195,6 +202,33 @@ main ()
   rm -f conf.glibtest
 ])
 
+#
+# AC_WIRETAP_PCAP_CHECK
+#
+AC_DEFUN(AC_WIRETAP_PCAP_CHECK,
+[
+       # Evidently, some systems have pcap.h, etc. in */include/pcap
+       AC_MSG_CHECKING(for extraneous pcap header directories)
+       found_pcap_dir=""
+       for pcap_dir in /usr/include/pcap /usr/local/include/pcap $prefix/include
+       do
+         if test -d $pcap_dir ; then
+           CFLAGS="$CFLAGS -I$pcap_dir"
+           CPPFLAGS="$CPPFLAGS -I$pcap_dir"
+           found_pcap_dir=" $found_pcap_dir -I$pcap_dir"
+         fi
+       done
+
+       if test "$found_pcap_dir" != "" ; then
+         AC_MSG_RESULT(found --$found_pcap_dir added to CFLAGS)
+       else
+         AC_MSG_RESULT(not found)
+       fi
+
+       # Pcap header check
+       AC_CHECK_HEADER(pcap.h)
+])
+
 #
 # AC_WIRETAP_ZLIB_CHECK
 #