Hi, I would like to know how to use the FetchContent properly so that I can link against downloaded (CMake enabled) projects. I have looked at the CMake docs, which although are quite thorough, almost always fail to list a complete example which is incredibly crucial to get up and running quickly.
With ExternalProject_Add, we use add_dependencies(...) but that doesn't seem to be the case for FetchContent. Since I can immediately call add_subdirectory(...), I assumed that I can simply link to the library. But that doesn't seem to do anything. Here's my CMakeLists.txt `````````````````````````````````````````````````````````````` cmake_minimum_required(VERSION 3.5) project(testProj) include(FetchContent) FetchContent_Declare( Catch2 GIT_REPOSITORY "https://github.com/catchorg/Catch2"; TEST_COMMAND "" ) FetchContent_GetProperties(catch) if(NOT Catch2_POPULATED) FetchContent_Populate(Catch2) add_subdirectory(${Catch2_SOURCE_DIR} ${Catch2_BINARY_DIR}) endif() add_executable(testExe main.cpp) target_link_libraries(testExe Catch2) `````````````````````````````````````````````````````````````` CMake populates Catch2 with Catch2-NOTFOUND. So, my question is, how do I link against projects added through FetchContent? - Saad
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