Port to CMake, get rid of os_int.h.

[stg.git] / cmake / modules / FindPCap.cmake

diff --git a/cmake/modules/FindPCap.cmake b/cmake/modules/FindPCap.cmake
new file mode 100644 (file)
index 0000000..d1dff55
--- /dev/null
+++ b/cmake/modules/FindPCap.cmake
@@ -0,0 +1,38 @@
+find_path ( PCap_INCLUDE_DIR NAMES pcap.h pcap/pcap.h DOC "Path to PCap header files." )
+mark_as_advanced ( PCap_INCLUDE_DIR )
+
+find_library ( PCap_LIB NAMES pcap DOC "Location of PCap library." )
+mark_as_advanced ( PCap_LIB )
+
+if ( PCap_INCLUDE_DIR )
+    file ( READ "${PCap_INCLUDE_DIR}/pcap/pcap.h" ver )
+
+    string ( REGEX MATCH "PCAP_VERSION_MAJOR ([0-9]*)" _ ${ver} )
+    set ( ver_major ${CMAKE_MATCH_1} )
+
+    string ( REGEX MATCH "PCAP_VERSION_MINOR ([0-9]*)" _ ${ver} )
+    set ( ver_minor ${CMAKE_MATCH_1} )
+
+    set ( PCap_VERSION "${ver_major}.${ver_minor}" )
+
+    unset ( ver )
+    unset ( ver_major )
+    unset ( ver_minor )
+endif ( PCap_INCLUDE_DIR )
+
+include ( FindPackageHandleStandardArgs )
+find_package_handle_standard_args ( PCap
+                                    REQUIRED_VARS PCap_LIB PCap_INCLUDE_DIR
+                                    VERSION_VAR PCap_VERSION )
+
+# Create the imported target
+if ( PCap_FOUND )
+    set ( PCap_INCLUDE_DIRS ${PCap_INCLUDE_DIR} )
+    set ( PCap_LIBRARIES ${PCap_LIB} )
+    if ( NOT TARGET PCap::PCap )
+        add_library ( PCap::PCap UNKNOWN IMPORTED )
+        set_target_properties ( PCap::PCap PROPERTIES
+                                IMPORTED_LOCATION "${PCap_LIB}"
+                                INTERFACE_INCLUDE_DIRECTORIES "${PCap_INCLUDE_DIR}" )
+    endif ( NOT TARGET PCap::PCap )
+endif ( PCap_FOUND )