Improve tests CMake build files.

tests/CMakeLists.txt

@@ -1,12 +1,2 @@
-IF(gtest_BINARY_DIR)
-    MESSAGE(STATUS "Using googletest git submodule.")
-    SET(GTEST_FOUND true)
-ELSE()
-    FIND_PACKAGE(GTest)
-ENDIF()
-IF(GTEST_FOUND)
-    INCLUDE_DIRECTORIES(${gtest_INCLUDE_DIRS})
-    ADD_SUBDIRECTORY(src)
-ELSE(GTEST_FOUND)
-    MESSAGE(WARNING "Google test not found. Tests disabled.")
-ENDIF(GTEST_FOUND)
+INCLUDE_DIRECTORIES(${gtest_INCLUDE_DIRS})
+ADD_SUBDIRECTORY(src)

tests/src/CMakeLists.txt

@@ -3,6 +3,7 @@ INCLUDE_DIRECTORIES(
     ${PROJECT_SOURCE_DIR}/include/tins/ 
     ../include/
     ${gtest_SOURCE_DIR}/include
+    ${PCAP_INCLUDE_DIR}
 )
 
 # Find pthread library
@@ -10,7 +11,6 @@ FIND_PACKAGE(Threads REQUIRED)
 
 LINK_DIRECTORIES(
     ${gtest_BINARY_DIR}
-
 )
 # Link against GoogleTest, libtins and pthread.
 # Pthread is required by GoogleTest
@@ -19,6 +19,7 @@ LINK_LIBRARIES(
     gtest_main
     tins 
     ${CMAKE_THREAD_LIBS_INIT}
+    ${PCAP_LIBRARY}
 )
 
 IF(LIBTINS_ENABLE_WPA2)