#Cmake set variable in subdirectory for android
#Cmake set variable in subdirectory code

The names of variables are usually all caps, and the value follows.

A local variable is set like this: set(MY_VARIABLE 'value') Make CMake variable set in subproject (variable nesting) available to all other subprojects. 3 Any way to set CMake variables for all projects 3 CMAKE share variable between subdirectories. 4 Link CMake subprojects with one another. See ot-efr32 and ot-nrf528xx.We will cover variables first. Using project() for dependent CMake subdirectories. Support for multiple platforms in a single repository is possible and several platform repositories can be used as reference. A good example of this file for a repository which supports only a single platform is from ot-cc2538. CMakes option command more or less adds a boolean variable to the cache. This is where you define the source files, include paths, and compiler flags for your platform library. A good starting point would be to copy the ot-efr32 version of this file and modify it to fit your platform. This is a toolchain file which defines some variables that CMake uses in the build process. CMake can optionally generate a list of compilation commands by setting the CMAKEEXPORTCOMPILECOMMANDS variable. Each subproject would have its own CMakeLists.txt defining its own project. If I understood cmake correctly, the idea would be to have one root CMakeLists.txt defining a project(.) and then using addsubdirectory(.) to include the subprojects. It also contains a few other required files. Lets say I have a project with two independent subprojects. This is the heart of the repository and is where the platform abstraction layer is implemented. If you would like to include sample applications in the repo, create an examples folder and add it to the build tree as well. The third_party folder contains any third-party code.

#Cmake set variable in subdirectory for android

Set of variables to specify the path to Qt for Android for the corresponding. Some of these variables are global and constant across the entire build process, but some change depending on the current scope (context).

#Cmake set variable in subdirectory code

The src folder is where the platform-abstration layer source code is located. Prefix-relative subdirectory for deploying Qt plugins on some target platforms. In CMake 3.17, variable CMAKECURRENTFUNCTIONLISTDIR was introduced for precisely this usage (see the linked documentation). CMake exposes a large set of built-in variables that provide the user with information about the project’s structure. Now that the top-level configuration is defined, it's time to add other subdirectories to the build tree. set_property(CACHE EFR32_PLATFORM PROPERTY STRINGS $/crypto The CMakeLists.txt file includes a check that aborts builds launched for unsupported platforms. For the sake of this example, we've defined multiple platforms, but having a single platform for the _PLATFORM_VALUES variable is fine as well. We also define a variable EFR32_PLATFORM_VALUES which is a list of efr32 platforms supported by ot-efr32. In this example, we set the project name to ot-efr32 with a version of 0.0.1. The very first values to define are the project name and the supported platforms. The CMakeLists.txt at the root of your repository is the top of the build tree and is a good place to start defining the various targets, options, and macros used in the build process. The SRC variable in source1/CMakeLists.txt and source2/CMakeLists.txt are different variables and cannot be seen in source3/CMakeLists.txt. The CMake build system relies on CMakeLists.txt files which define build targets.