cmake: fix ENABLE_TRACE parameter being too strict In order to check whether tracing support should be turned on, we check whether ENABLE_TRACE equals "ON". This is being much too strict, as CMake will also treat "on", "true", "yes" and others as true-ish, but passing them will disable tracing support now. Fix the issue by simply removing the STREQUAL, which will cause CMake to do the right thing automatically.