Linking to curlcpp (a C++ curl wrapper)

Code
1

I’m trying to link curlcpp, a C++ curl wrapper, to a library of my own.

My idea was to:

  1. FetchContent_Declare both curl and curlcpp.
  2. FetchContent_MakeAvailable both of them as well.
  3. Link libcurl.lib and curlcpp lib to my library.

I’m getting though an error saying that curlcpp needs CURL_LIBRARY variable to be set.

  • Is there any way to 1) set CURL_LIBRARY to wherever the build process is going to leave libcurl.lib, and 2) have it available for curlcpp compilation? I understand a set(CURL_LIBRARY <path to libcurl.lib>) should suffice.
  • I know curl sources are downloaded to ${curl_SOURCE_DIR}. Can I know where the output libcurl.lib will be placed? Is there a ${curl_BINARY_DIR}?

Here’s what I understand can be the relevant code from my CMakeLists.txt files.

cmake_minimum_required(VERSION 3.5)

project(my_project
    LANGUAGES C CXX  # C is needed for curl
)

FetchContent_Declare(curl
    URL https://curl.se/download/curl-7.83.1.tar.gz
)
FetchContent_Declare(curlcpp
    GIT_REPOSITORY https://github.com/JosephP91/curlcpp.git
    GIT_TAG "55bc50c244ecb5a14ac21b3b2e2931267a5bb802"
)
FetchContent_MakeAvailable(curl curlcpp)

target_link_libraries(lib_${PROJECT_NAME}
    libcurl
    curlcpp
)