command line cmake .. -DOPT_BUILD_LIMESDR_SOURCE=ON -OPT_BUILD_RTL_SDR_SOURCE
The second option should have the same syntax as the first one!
cmake .. -DOPT_BUILD_LIMESDR_SOURCE=ON -DOPT_BUILD_RTL_SDR_SOURCE=ON
From the top level CMakeLists.txt:
option(OPT_BUILD_LIMESDR_SOURCE "Build LimeSDR Source Module (Dependencies: liblimesuite)" OFF)
[...]
option(OPT_BUILD_RTL_SDR_SOURCE "Build RTL-SDR Source Module (Dependencies: librtlsdr)" ON)