diff options
| -rw-r--r-- | cmake/Modules/FindPCAP.cmake | 95 |
1 files changed, 88 insertions, 7 deletions
diff --git a/cmake/Modules/FindPCAP.cmake b/cmake/Modules/FindPCAP.cmake index dc4f75a7..bc17f7ab 100644 --- a/cmake/Modules/FindPCAP.cmake +++ b/cmake/Modules/FindPCAP.cmake @@ -2,11 +2,94 @@ # Try to find libpcap. # -# Try to find the header -find_path(PCAP_INCLUDE_DIR pcap.h) +find_program(PCAP_CONFIG pcap-config) +if(PCAP_CONFIG) + # We have pcap-config; use it. + # First, get the include directory. + execute_process(COMMAND "${PCAP_CONFIG}" "--cflags" + RESULT_VARIABLE PCAP_CONFIG_RESULT + OUTPUT_VARIABLE PCAP_CONFIG_OUTPUT + OUTPUT_STRIP_TRAILING_WHITESPACE + ) + if(NOT PCAP_CONFIG_RESULT EQUAL 0) + message(FATAL_ERROR "pcap-config --cflags failed") + endif() + string(REGEX REPLACE "-I" "" PCAP_INCLUDE_DIR ${PCAP_CONFIG_OUTPUT}) -# Try to find the library -find_library(PCAP_LIBRARY pcap) + # Now, get the library directories and libraries. + execute_process(COMMAND "${PCAP_CONFIG}" "--libs" + RESULT_VARIABLE PCAP_CONFIG_RESULT + OUTPUT_VARIABLE PCAP_CONFIG_OUTPUT + OUTPUT_STRIP_TRAILING_WHITESPACE + ) + if(NOT PCAP_CONFIG_RESULT EQUAL 0) + message(FATAL_ERROR "pcap-config --libs failed") + endif() + separate_arguments(LIBS_LIST UNIX_COMMAND ${PCAP_CONFIG_OUTPUT}) + set(PCAP_LIBRARY_DIRS) + set(PCAP_LIBRARIES) + foreach(arg IN LISTS LIBS_LIST) + if(arg MATCHES "^-L") + # Add this directory to PCAP_LIBRARY_DIRS + string(REGEX REPLACE "-L" "" dir ${arg}) + list(APPEND PCAP_LIBRARY_DIRS ${dir}) + elseif(arg MATCHES "^-l") + string(REGEX REPLACE "-l" "" lib ${arg}) + list(APPEND PCAP_LIBRARIES ${lib}) + endif() + endforeach() + + # Now, get the library directories and libraries for static linking. + execute_process(COMMAND "${PCAP_CONFIG}" "--libs" "--static" + RESULT_VARIABLE PCAP_CONFIG_RESULT + OUTPUT_VARIABLE PCAP_CONFIG_OUTPUT + ) + if(NOT PCAP_CONFIG_RESULT EQUAL 0) + message(FATAL_ERROR "pcap-config --libs --static failed") + endif() + separate_arguments(LIBS_LIST UNIX_COMMAND ${PCAP_CONFIG_OUTPUT}) + set(PCAP_STATIC_LIBRARY_DIRS) + set(PCAP_STATIC_LIBRARIES) + foreach(arg IN LISTS LIBS_LIST) + if(arg MATCHES "^-L") + # Add this directory to PCAP_STATIC_LIBRARY_DIRS + string(REGEX REPLACE "-L" "" dir ${arg}) + list(APPEND PCAP_STATIC_LIBRARY_DIRS ${dir}) + elseif(flag MATCHES "^-l") + string(REGEX REPLACE "-l" "" lib ${arg}) + list(APPEND PCAP_STATIC_LIBRARIES ${lib}) + endif() + endforeach() + + # Try to find the header + find_path(PCAP_INCLUDE_DIR pcap.h HINTS ${PCAP_INCLUDE_DIRS}) + + # Try to find the library + find_library(PCAP_LIBRARY pcap HINTS ${PCAP_LIBRARY_DIRS}) + + # Try to find the static library (XXX - what about AIX?) + include(CMakePushCheckState) + cmake_push_check_state() + set(CMAKE_FIND_LIBRARY_SUFFIXES ".a") + find_library(PCAP_STATIC_LIBRARY pcap HINTS ${PCAP_STATIC_LIBRARY_DIRS}) + cmake_pop_check_state() +else(PCAP_CONFIG) + # Try to find the header + find_path(PCAP_INCLUDE_DIR pcap.h) + + # Try to find the library + find_library(PCAP_LIBRARY pcap) + + # Try to find the static library (XXX - what about AIX?) + include(CMakePushCheckState) + cmake_push_check_state() + set(CMAKE_FIND_LIBRARY_SUFFIXES ".a") + find_library(PCAP_STATIC_LIBRARY pcap) + cmake_pop_check_state() + + set(PCAP_INCLUDE_DIRS ${PCAP_INCLUDE_DIR}) + set(PCAP_LIBRARIES ${PCAP_LIBRARY}) +endif(PCAP_CONFIG) include(FindPackageHandleStandardArgs) find_package_handle_standard_args(PCAP @@ -18,7 +101,5 @@ find_package_handle_standard_args(PCAP mark_as_advanced( PCAP_INCLUDE_DIR PCAP_LIBRARY + PCAP_STATIC_LIBRARY ) - -set(PCAP_INCLUDE_DIRS ${PCAP_INCLUDE_DIR}) -set(PCAP_LIBRARIES ${PCAP_LIBRARY}) |