- use ports libpcap

Index: cmake/modules/FindPCAP.cmake
--- cmake/modules/FindPCAP.cmake.orig
+++ cmake/modules/FindPCAP.cmake
@@ -14,7 +14,7 @@ FindWSWinLibs("libpcap-*" "PCAP_HINTS")
 #
 if(NOT USE_REPOSITORY)
   find_package(PkgConfig)
-  pkg_search_module(PC_PCAP libpcap)
+  pkg_search_module(PC_PCAP libepcap)
 endif()
 
 if(NOT PC_PCAP_FOUND AND NOT WIN32)
@@ -135,17 +135,7 @@ if (WIN32 AND (CMAKE_CROSSCOMPILING OR USE_MSYSTEM))
     #VALIDATOR pcap_include_check
   )
 else()
-  find_path(PCAP_INCLUDE_DIR
-    NAMES
-      pcap/pcap.h
-    HINTS
-      ${PC_PCAP_INCLUDE_DIRS}
-      ${PCAP_CONFIG_INCLUDE_DIRS}
-      "${PCAP_HINTS}/Include"
-    PATHS
-      "${CMAKE_SOURCE_DIR}/libpcap"
-    #VALIDATOR pcap_include_check
-  )
+  set(PCAP_INCLUDE_DIR ${PC_PCAP_INCLUDE_DIRS})
 endif()
 
 # On Windows we load wpcap.dll explicitly and probe its functions in
