vcpkg/ports/libpcap/add-disable-packet-option.patch

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3fe9979..23783d3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -161,6 +161,7 @@ set(SEPTEL_ROOT "${CMAKE_CURRENT_SOURCE_DIR}/../septel" CACHE PATH "Path to dire
 option(DISABLE_SNF "Disable Myricom SNF support" OFF)
 
 option(DISABLE_TC "Disable Riverbed TurboCap support" OFF)
+option(DISABLE_PACKET "Disable Packet support" OFF)
 
 #
 # Debugging options.
@@ -220,19 +221,21 @@ if(WIN32)
         include_directories(${CMAKE_HOME_DIRECTORY}/../../Common)
     endif(IS_DIRECTORY ${CMAKE_HOME_DIRECTORY}/../../Common)
 
-    find_package(Packet)
-    if(PACKET_FOUND)
-        set(HAVE_PACKET32 TRUE)
-        include_directories(${PACKET_INCLUDE_DIRS})
-        #
-        # Check whether we have the NPcap PacketIsLoopbackAdapter()
-        # function.
-        #
-        cmake_push_check_state()
-        set(CMAKE_REQUIRED_LIBRARIES ${PACKET_LIBRARIES})
-        check_function_exists(PacketIsLoopbackAdapter HAVE_PACKET_IS_LOOPBACK_ADAPTER)
-        cmake_pop_check_state()
-    endif(PACKET_FOUND)
+    if(NOT DISABLE_PACKET)
+        find_package(Packet)
+        if(PACKET_FOUND)
+            set(HAVE_PACKET32 TRUE)
+            include_directories(${PACKET_INCLUDE_DIRS})
+            #
+            # Check whether we have the NPcap PacketIsLoopbackAdapter()
+            # function.
+            #
+            cmake_push_check_state()
+            set(CMAKE_REQUIRED_LIBRARIES ${PACKET_LIBRARIES})
+            check_function_exists(PacketIsLoopbackAdapter HAVE_PACKET_IS_LOOPBACK_ADAPTER)
+            cmake_pop_check_state()
+        endif(PACKET_FOUND)
+    endif()
 
     message(STATUS "checking for Npcap's version.h")
     check_symbol_exists(WINPCAP_PRODUCT_NAME "../../version.h" HAVE_VERSION_H)