52 lines
1.4 KiB
CMake
52 lines
1.4 KiB
CMake
include(CheckFunctionExists)
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include(CheckSymbolExists)
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include(CheckCSourceCompiles)
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include(CheckIncludeFiles)
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set(PCAP_OS_LIBRARIES)
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if (MSVC)
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set(PCAP_OS_LIBRARIES ws2_32.lib Crypt32.lib ${OPENSSL_LIBRARIES})
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endif ()
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set(CMAKE_REQUIRED_INCLUDES ${PCAP_INCLUDE_DIR})
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set(CMAKE_REQUIRED_LIBRARIES ${PCAP_LIBRARY} ${PCAP_OS_LIBRARIES})
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cmake_policy(PUSH)
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if (POLICY CMP0075)
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# It's fine that check_include_files links against CMAKE_REQUIRED_LIBRARIES
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cmake_policy(SET CMP0075 NEW)
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endif ()
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check_include_files(pcap-int.h HAVE_PCAP_INT_H)
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cmake_policy(POP)
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check_symbol_exists(pcap_freecode pcap.h HAVE_LIBPCAP_PCAP_FREECODE)
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if (NOT HAVE_LIBPCAP_PCAP_FREECODE)
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set(DONT_HAVE_LIBPCAP_PCAP_FREECODE true)
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message(STATUS "No implementation for pcap_freecode()")
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endif ()
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if (DONT_HAVE_LIBPCAP_PCAP_FREECODE AND NOT HAVE_PCAP_INT_H)
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message(FATAL_ERROR "pcap-int.h required to implement pcap_freecode() internally")
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endif ()
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check_symbol_exists(DLT_PPP_SERIAL pcap.h HAVE_DLT_PPP_SERIAL)
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if (NOT HAVE_DLT_PPP_SERIAL)
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set(DLT_PPP_SERIAL 50)
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endif ()
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check_symbol_exists(DLT_NFLOG pcap.h HAVE_DLT_NFLOG)
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if (NOT HAVE_DLT_NFLOG)
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set(DLT_NFLOG 239)
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endif ()
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check_symbol_exists(DLT_LINUX_SLL2 pcap.h HAVE_DLT_LINUX_SLL2)
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if (NOT HAVE_DLT_LINUX_SLL2)
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set(DONT_HAVE_LIBPCAP_DLT_LINUX_SLL2 true)
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message(STATUS "No DLT_LINUX_SLL2 support in libpcap")
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endif ()
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set(CMAKE_REQUIRED_INCLUDES)
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set(CMAKE_REQUIRED_LIBRARIES)
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