What are some effective debugging tips for CMake?
Here are a few tips: 1. Use cmake --trace
to see what CMake is doing. 2. Check the CMakeCache.txt for variable values. 3. Use verbose makefiles with make VERBOSE=1
.
How can I find out why a specific variable isn't being set?
You can use message(STATUS "Variable: ${VAR_NAME}")
in your CMakeLists.txt to print the variable's value during configuration.
What should I do if my build fails with a CMake error?
Check the error message for clues. Often, it indicates missing dependencies or incorrect paths. You can also run cmake --debug-output
for more details.
Are there any tools that can help with CMake debugging?
Yes, tools like CMake GUI and ccmake can help visualize and modify CMake variables, making debugging easier.
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