wrong patch

CMakeLists.txt

@@ -25,10 +25,9 @@ cmake_minimum_required(VERSION 3.10)
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
 
 # set the project name
-project(mrc VERSION 1.3.11)
+project(mrc VERSION 1.3.12)
 
 include(CTest)
-include(FetchContent)
 
 set(CXX_EXTENSIONS OFF)
 set(CMAKE_CXX_STANDARD 20)
@@ -62,8 +61,19 @@ if(WIN32)
 	message(STATUS "Using COFF spec: ${COFF_SPEC}")
 endif()
 
-FetchContent_Declare(libmcfp GIT_REPOSITORY https://github.com/mhekkel/libmcfp GIT_TAG v1.2.4)
+find_package(libmcfp 1.2.4 QUIET)
+
+if(NOT libmcfp_FOUND)
+	include(FetchContent)
+
+	FetchContent_Declare(
+		libmcfp
+		GIT_REPOSITORY https://github.com/mhekkel/libmcfp
+		GIT_TAG v1.2.4
+	)
+
 FetchContent_MakeAvailable(libmcfp)
+endif()
 
 include(VersionString)
 write_version_header(${PROJECT_SOURCE_DIR}/src/)
@@ -80,8 +90,19 @@ target_link_libraries(mrc libmcfp::libmcfp)
 target_link_libraries(mrc-bootstrap libmcfp::libmcfp)
 
 if(BUILD_TESTING)
-	FetchContent_Declare(Catch2 GIT_REPOSITORY https://github.com/catchorg/Catch2.git GIT_TAG v2.13.9)
+	find_package(Catch2 3 QUIET)
+
+	if(NOT Catch2_FOUND)
+		Include(FetchContent)
+
+		FetchContent_Declare(
+			Catch2
+			GIT_REPOSITORY https://github.com/catchorg/Catch2.git
+			GIT_TAG v3.5.2 # or a later release
+		)
+
 	FetchContent_MakeAvailable(Catch2)
+endif()
 
 	file(GLOB UNIT_TEST_RSRC LIST_DIRECTORIES true ${PROJECT_SOURCE_DIR}/rsrc/*)