Cmake Print Variable. CMake debugging First, let’s look at ways to debug a CMakeList

CMake debugging First, let’s look at ways to debug a CMakeLists or CMake is a powerful cross-platform build system generator used to manage the build process of software projects. This page documents variables that are provided by CMake or have meaning to CMake when set by project code. cmake_print_properties([TARGETS target1 . For general information on variables, see the Variables section in the cmake-language cmake_print_variables(CMAKE_SOURCE_DIR MY_CUSTOM_VAR) While cmake_print_variables is straightforward, users often encounter a few common scenarios where it I’m wondering if there is a way to print out all accessible variables in CMake. I'm talking about my variables 0 How can I print the contents of a variable in CMakelists eg: link_directories ($ {ZED_LIBRARY_DIR}) I want to print ZED_LIBRARY_DIR I tried MESSAGE ( STATUS "xxxx:" $ # Get all propreties that cmake supports if(NOT CMAKE_PROPERTY_LIST) execute_process(COMMAND cmake --help-property-list OUTPUT_VARIABLE Objectives Learn how to define variables with set and use them with the ${} operator for variable references. Load this module in CMake with: Learn how to debug your CMake build and your C++ code with various methods and tools. Learn how to configure and add customization points to your project! CMakePrintHelpers Convenience functions for printing properties and variables, useful e. txt` files) to define build targets, CMake: Print All Environment Variables. After modifying the presets file in your question to work, I created an empty 0 How can I print the contents of a variable in CMakelists eg: link_directories ($ {ZED_LIBRARY_DIR}) I want to print ZED_LIBRARY_DIR I tried MESSAGE ( STATUS "xxxx:" $ Some directories can be included through compiler flags, so it can be usefull to print additionally CMAKE_C_LINK_FLAGS variable (or the corresponding variable of your langage) : In CMake, function creates a scope where variables are local and do not affect parent scope variables. A subdirectory has its Debugging is easy with CMake. Learn how to use the get_cmake_property function to list and print all CMake variables in a project. 17+). Learn the syntax for After covering CMake basics, we now dive deeper. See examples, syntax and documentation for this module. varN) This macro will print the name of each variable followed by its value. Which variable is shown?. Cmake uses curly braces for getting values of variables: I suggest to dump messages like below to not skip empty messages. Example: Gives: Licensed under the BSD 3-clause License. propN ) This function prints the values of the properties of the given targets, source files, First, something a bit irrelevant to the question, but related to modern CMake techniques and usage. targetN] [SOURCES source1 . CMake debugging First, let’s look at ways to debug a CMakeLists or 14, Sep 2025 Cmake Print Variable – Cmake Printing Variables Try setting a cached variable using -DMY_VARIABLE=something before the -P. Convenience functions for printing properties and variables, useful e. g. CMAKE_PRINT_VARIABLES (var1 var2 . We’ll cover foundational concepts, practical methods, You can print extra find call information during the cmake run to standard error by adding --debug-find (CMake 3. . Alternatively, CMAKE_FIND_DEBUG_MODE can be set around sections of your Learn how to use cmake_print_variables function to print the name and value of CMake variables. We’ll cover two forms of debugging: debugging your CMake code, and debugging your C++ code. In order to set the include path, it is preferred to use the target_include_directories If I run CMake on a CMakeLists. See how to use cmake_print_variables and cmake_print_properties to print variables and properties in CMake. Is there an easy way to display these Dive into the core of the CMake language. sourceN] You can use the -N flag to print the computed presets info without running the configure or generate steps. PROPERTIES prop1 . txt file that contains find_package(Foo), then I can print out the values of variables such as ${Foo_LIBRARIES} and ${Foo_INCLUDES}. This guide will walk you through **how to print all user-defined and included script variables directly within a CMake script**. In contrast, macro pastes its content in the caller's scope. Learn the syntax for conditionals in CMake: if - elseif - else - endif. It uses scripts (typically `CMakeLists. GitHub Gist: instantly share code, notes, and snippets. Cmake failed to configure your project because it did not CMakePrintHelpers ¶ This module provides convenience commands, primarily intended for debugging, to print the values of properties and variables. I’m not interested in the CMake variables — as in the --help-variables option. for debugging. This lesson covers the essentials of CMake syntax, including how to set and reference variables, understand scope, use string interpolation, and print debug Debugging is easy with CMake. See the CMake script and the output example for This lesson covers the essentials of CMake syntax, including how to set and reference variables, understand scope, use string interpolation, and print debug messages with the message () command.

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