CMake: Find CURL when wxUSE_WEBREQUEST_CURL is ON

build/cmake/lib/net/CMakeLists.txt

@@ -31,4 +31,11 @@ if(WIN32)
     endif()
 endif()
 
+if (wxUSE_WEBREQUEST_CURL)
+    find_package(CURL REQUIRED)
+
+    target_include_directories(net PRIVATE ${CURL_INCLUDE_DIRS})
+    wx_lib_link_libraries(net PRIVATE CURL::libcurl)
+endif()
+
 wx_finalize_lib(net)