windows: use wpcap instead of pcap

Windows pcap libraries such as winpcap all use a library name of
wpcap instead of just pcap. Support this in configure.

diff --git a/configure.ac b/configure.ac
index efbdd1e2373d000466e4e62ba86a54e6d982832c..ee7408ca3c93a2009655c30d203a7e87a92d3a2f 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -191,6 +191,7 @@
 
     e_magic_file=""
     e_magic_file_comment="#"
+    PCAP_LIB_NAME="pcap"
     case "$host" in
         *-*-*freebsd*)
             LUA_PC_NAME="lua-5.1"
@@ -220,11 +221,13 @@
             CFLAGS="${CFLAGS} -DOS_WIN32"
             LDFLAGS="${LDFLAGS} -lws2_32"
             WINDOWS_PATH="yes"
+            PCAP_LIB_NAME="wpcap"
             ;;
         *-*-cygwin)
             LUA_PC_NAME="lua"
             LUA_LIB_NAME="lua"
             WINDOWS_PATH="yes"
+            PCAP_LIB_NAME="wpcap"
             ;;
         *-*-solaris*)
             AC_MSG_WARN([support for Solaris/Illumos/SunOS is experimental])
@@ -1078,7 +1081,7 @@
     AC_CHECK_HEADERS([pcap.h pcap/pcap.h pcap/bpf.h])
 
     LIBPCAP=""
-    AC_CHECK_LIB(pcap, pcap_open_live,, LIBPCAP="no")
+    AC_CHECK_LIB(${PCAP_LIB_NAME}, pcap_open_live,, LIBPCAP="no")
     if test "$LIBPCAP" = "no"; then
         echo
         echo "   ERROR!  libpcap library not found, go get it"
@@ -1095,7 +1098,7 @@
     #To prevent duping the lib link we reset LIBS after this check. Setting action-if-found to NULL doesn't seem to work
     #see: http://blog.flameeyes.eu/2008/04/29/i-consider-ac_check_lib-harmful
     TMPLIBS="${LIBS}"
-    AC_CHECK_LIB(pcap, pcap_activate,, LPCAPVTEST="no")
+    AC_CHECK_LIB(${PCAP_LIB_NAME}, pcap_activate,, LPCAPVTEST="no")
     if test "$LPCAPVTEST" = "no"; then
         echo
         echo "   ERROR!  libpcap library too old, need at least 1+, "
@@ -1120,7 +1123,7 @@
     #To prevent duping the lib link we reset LIBS after this check. Setting action-if-found to NULL doesn't seem to work
     #see: http://blog.flameeyes.eu/2008/04/29/i-consider-ac_check_lib-harmful
     TMPLIBS="${LIBS}"
-    AC_CHECK_LIB(pcap, pcap_set_buffer_size,, LPCAPSBUFF="no")
+    AC_CHECK_LIB(${PCAP_LIB_NAME}, pcap_set_buffer_size,, LPCAPSBUFF="no")
     if test "$LPCAPSBUFF" != "no"; then
         AC_DEFINE([HAVE_PCAP_SET_BUFF],[1],(libpcap has pcap_set_buffer_size function))
     fi