updated build system

cmake/libraries/cpp_httplib.cmake

@@ -1,15 +1,10 @@
 if(PROJECT_ENABLE_CPP_HTTPLIB)
   if(PROJECT_BUILD)
-    if(PROJECT_ENABLE_OPENSSL)
-      add_definitions(
-        -DCPPHTTPLIB_OPENSSL_SUPPORT
-      )
-    endif()
-
     add_definitions(
-      -DPROJECT_ENABLE_CPP_HTTPLIB
+      -DCPPHTTPLIB_OPENSSL_SUPPORT
       -DCPPHTTPLIB_TCP_NODELAY=true
       -DCPPHTTPLIB_ZLIB_SUPPORT
+      -DPROJECT_ENABLE_CPP_HTTPLIB
     )
   elseif(NOT PROJECT_IS_MINGW OR CMAKE_HOST_WIN32)
     ExternalProject_Add(cpphttplib_project
@@ -29,10 +24,9 @@ if(PROJECT_ENABLE_CPP_HTTPLIB)
 
     list(APPEND PROJECT_DEPENDENCIES cpphttplib_project)
 
-    add_dependencies(cpphttplib_project curl_project)
-
-    if(PROJECT_ENABLE_OPENSSL)
-      add_dependencies(cpphttplib_project openssl_project)
-    endif()
+    add_dependencies(cpphttplib_project 
+      curl_project
+      openssl_project
+    )
   endif()
 endif()