Cleaned up cmake file for examples.

It's no longer a standalone cmake file because cmake was crashing when
reading it as part of the subproject.

example/CMakeLists.txt

@@ -21,29 +21,16 @@
 # * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
 # *************************************************************************/
 
-cmake_minimum_required(VERSION 3.0)
-project(SpdlogExamples)
-
-if(TARGET spdlog)
-  # Part of the main project
-  add_library(spdlog::spdlog ALIAS spdlog)
-else()
-  # Stand-alone build
-  find_package(spdlog CONFIG REQUIRED)
-endif()
-
-if (CMAKE_COMPILER_IS_GNUCXX)
-  set ( CMAKE_CXX_FLAGS "--std=c++11 -pthread")  
-  set ( CMAKE_EXE_LIKKER_FLAGS "-pthread")  
-endif ()
+find_package(Threads)
 
 add_executable(example example.cpp)
-target_link_libraries(example spdlog::spdlog)
+target_link_libraries(example spdlog ${CMAKE_THREAD_LIBS_INIT})
 
 add_executable(benchmark bench.cpp)
-target_link_libraries(benchmark spdlog::spdlog)
+target_link_libraries(benchmark spdlog ${CMAKE_THREAD_LIBS_INIT})
 
 enable_testing()
 file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/logs")
 add_test(NAME RunExample COMMAND example)
 add_test(NAME RunBenchmark COMMAND benchmark)
+