Only depend on protolib when it is not build with norm

CMakeLists.txt

@@ -45,6 +45,7 @@ if(NOT protokit_FOUND)
       GIT_TAG        ${NORM_PROTOKIT_GIT_TAG}
     )
     FetchContent_MakeAvailable(protokit)
+	set(NORM_PROTOKIT_INCLUDED 1)
 endif()
 
 # List header files

cmake/normConfig.cmake.in

@@ -4,7 +4,9 @@ include(GNUInstallDirs)
 include(CMakeFindDependencyMacro)
 
 # Same syntax as find_package
-find_dependency(protokit REQUIRED)
+if(NOT @NORM_PROTOKIT_INCLUDED@)
+	find_dependency(protokit REQUIRED)
+endif()
 
 # Add the targets file
 include("${CMAKE_CURRENT_LIST_DIR}/normTargets.cmake")