Implement conditional cmake configuration for echo_server_tls

CMakeLists.txt

@@ -204,7 +204,8 @@ if (BUILD_TESTS OR BUILD_EXAMPLES)
     else ()
         message (FATAL_ERROR "Failed to find required dependency: boost")
     endif ()
-
+    
+    find_package(OpenSSL)
 endif()
 
 ############ Add projects

cmake/CMakeHelpers.cmake

@@ -72,3 +72,7 @@ endmacro ()
 macro (link_boost)
     target_link_libraries (${TARGET_NAME} ${Boost_LIBRARIES})
 endmacro ()
+
+macro (link_openssl)
+    target_link_libraries (${TARGET_NAME} ${OPENSSL_SSL_LIBRARY} ${OPENSSL_CRYPTO_LIBRARY})
+endmacro ()

examples/echo_server_tls/CMakeLists.txt

@@ -0,0 +1,15 @@
+    
+file (GLOB SOURCE_FILES *.cpp)
+file (GLOB HEADER_FILES *.hpp)
+
+
+if (OPENSSL_FOUND)
+    
+init_target (echo_server_tls)
+
+build_executable (${TARGET_NAME} ${SOURCE_FILES} ${HEADER_FILES})
+
+link_boost ()
+link_openssl()
+final_target ()
+endif()