Need to use release library in cmake debug build - c++

Question

I have generated a release library using CMAKE that needs to be kept proprietary. I plan to put header files into an include directory and library files into a lib directory.
The CMAKE line used to generate the library is:
add_library(Ethernet STATIC ${eth_srcs} $<TARGET_OBJECTS:EthernetBootloader>)
There are separate Visual Studio solutions for generating a library and running a control panel that uses the library. Running the Control Panel in debug mode only works with a debug library. If the Control Panel compiles and runs in debug mode and the library was built in release mode I get several errors that look like:
Ethernet.lib(ethernet.obj) : error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '0' doesn't match value '2' in main.obj
Ethernet.lib(ethernet.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MD_DynamicRelease' doesn't match value 'MDd_DynamicDebug' in main.obj
I am beginning to write a "ethernet-config.cmake" file that contains:
set(ETHERNET_INCLUDE_DIR "${CMAKE_CURRENT_LIST_DIR}/include")
set(ETHERNET_LIBRARIES "${CMAKE_CURRENT_LIST_DIR}/lib/Ethernet.lib")
string(STRIP "${ETHERNET_LIBRARIES}" ETHERNET_LIBRARIES)
and the CMakeLists.txt looks something like:
set(Ethernet_DIR "C:/MotorController/public")
find_package(Ethernet REQUIRED)
include_directories(${ETHERNET_INCLUDE_DIR})
target_link_libraries(ControlPanel ${ETHERNET_LIBRARIES})
How do I use a release library in a Visual Studio 2015 Windows 7 64-bit debug application? I think I need to adapt my CMakeLists.txt for the debug application but haven't figured it out.