![]() a set_and_check() alternative to set() to automatically check for path existence.a set of automatically defined PACKAGE_ variables (for relative path versions of ) and.Refer to the CMake documentation on configure_package_config_file (used instead of configure_file) and the substitution string to get The CMakePackageConfigHelpers module mentioned above has additional tools to help write a more relocatable Config.cmake file. You can also add this to your search path manually, including MyLib_PATH, and CMake gives the user nice help output if the configure file is not found. When CMake searches for a package, it will look in the current install prefix and several standard places. That's it! Now once you install a package, there will be files in lib/cmake/MyLib that CMake will search for (specifically, MyLibConfig.cmake and MyLibConfigVersion.cmake), and the targets file that config uses should be there as well. # Any extra setup # Add the targets file include( "$/MyLibConfigVersion.cmake" # Capturing values from configure (optional) set(my-config-var Same syntax as find_package The contents that look like this: include(CMakeFindDependencyMacro) in file, and you will want to use the syntax. If you want to capture configure time variables, you can use a. Then write a custom MyLibConfig.cmake file in your source tree somewhere. If you have no dependencies, just use MyLibConfig.cmake instead of MyLibTargets.cmake here. This file will take the targets you exported and put them in a file. The later option is what you'll need if you have any dependencies, even just OpenMP, so I'll illustrate that method.įirst, make an install targets file (very similar to the one you made in the build directory): install( EXPORT MyLibTargets You need to make a MyLibConfig.cmake, but you can do it either by exporting your targets directly to it, or by writing it by hand, then including the targets file. That looks like this: include(CMakePackageConfigHelpers) It's usually a good idea to give CMake access to the version, so that find_package can have a version specified. It only sets the includes destination on the exported target (which is often already set by target_include_directories, so check the MyLibTargets file and make sure you don't have the include directory included twice if you want clean cmake files). The includes destination is special since a target does not install includes. The various destinations are only needed if you have a library, static library, or program to install. Your basic target install command looks like this: install(TARGETS MyLib For this case, it was built under the Debug configuration type, so it would be located in the build/Debug folder (remember the build folder we specified earlier?).Install commands cause a file or target to be "installed" into the install tree when you make install. You can also invoke this script manually with cmake -P. exe file should now be compiled and ready to run. The install() command generates a file, cmakeinstall.cmake, inside the build directory, which is used internally by the generated install target and by CPack. ![]() The project can then be built through the IDE. This will open the default IDE or some other configured environment to open your project. This tutorial, and projects in this class, will just use the default settings that display no need to change anything.Ĭlick open project. The red highlights will display the optional cmake flags that are listed in the CMakeLists.txt (optional files to build), the configuration types, and CMAKE_INSTALL_PREFIX, where the default final. Here, MSVC 2017 will be used, which will generate project files for Visual Studios. You can customize the preferred compiler depending on the computer and program files, there may be 圆4 alternative compilers listed as well. This will read the CMakeLists.txt files, and configure the project for the correct compiler. The build folder will also include our executable files once built, so remember where this is! Locate the corresponding folders for the project: The source directory should be the one corresponding to the git directory pulled (make sure that the source directory contains a CMakeLists.txt file!) The build folder, if not already created, can be added by you it acts as a way of separating the binary files compiled from the source code). ![]() There are two paths that are required for cmake to configure and generate projects, the source code directory and build directory. The following window should display upon opening CMake-gui. If one chooses, some alternatives can include MinGW or Cygwin in this tutorial instead, one recommended method of building assignments will be through the cmake-gui: CMake-gui Download, and using Visual Studios 2017, installed with Visual C++ Support. ![]() For Windows, cmake and make compatibilities especially can be more involved, as gcc and such compilers do not come packaged with the OS.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |