For example: target_include_directories(Application PRIVATEĭirectory locations are relative to the project root but we can use the CMAKE_SOURCE_DIR variable to reinforce this: add_executable(Application We don’t specify the header files as part of the source dependencies.Īlthough we never list the header files as part of the configuration (as discussed in previous blogs), we need to specify the directories to search for header files by adding entries to the target_include_directories() directive. Remember that CMake will scan the source files looking for dependencies to build a dependency tree for the source files and included header files. We just add these source files to the add_executable() definition: add_executable(Application logic controller ( controller.cpp and controller.h).hardware devices ( devices.cpp and devices.h).Let’s say we have two separate modules for our project: We can extend our list of source files for the target executable. You can find the complete configuration files in the GitHub project accompanying this blog. Set_target_properties(Application PROPERTIES
#Cmake install prefix code#
The following is a simplified project configuration file where we have omitted the compiler and linker options as we are now concentrating on source code management: cmake_minimum_required(VERSION 3.16) So far, our example project has just used a single main.cpp source file, although the supporting GitHub projects use multiple source files to build a usable ELF image.įrom the previous blog, you may remember that, for our build, we use a separate toolchain file ( toolchain-STM32F407.cmake) and a project configuration file ( CMakeLists.txt). Nonexistent, empty, or contain very few files.Any non-trivial project will use separate source files to encapsulate different functional areas of the system. Typically affected by specifying a different prefix. Will use them, though not always-usually go in
#Cmake install prefix software#
Systemwide configurationįiles-which are sometimes created when installing the software that Paths of most files and directories created by running Parent directory that contains the locations in which different files Or another similarly named directory like System administration or they may go (more rarely, these days) in Subdirectories don't exist, it creates them. Purposes in the different subdirectories of Instead, it places files that serve different But this rarely, if ever, places loose files in Indicating that the software should be installed under theĭirectory. You should always look for documentation inside the extracted Not all software that is distributed in source code form is built this Still build and install the software with To install software in your home directory, you could use (Occasionally, a program or library's source code defaults to some Step actually installs the software, the locations whereĮverything will be installed are typically established in the When the thing you are installing providesĮxecutable commands, those executables are typically copied into aĪlthough building and installing software is often as simple as This copies files from the build directory When you have source code that is compiled by running
#Cmake install prefix how to#
To answer this more fully, I've reproduced two sections from my answer to How to install tar file “globally”? (on Unix & Linux), which address this question specifically: That appears in the paths to each of the directories where files from the program or library that you are building are to be installed. Executables that provide commands the user is intended to run usually go in a , different files are placed in different directories. The -config is only used by multi-configuration generators (i.e. You can see it gets quite a bit longer, and isn't directly equivalent anymore, but is closer to best practices in a fairly concise form. Mkdir build & cd build & cmake -DCMAKE_INSTALL_PREFIX:PATH=/usr.
Also to use more generic CMake syntax abstracting the generator. Best practice would be to use an external build directory, i.e. Some minor additions as comments make it clear that providing a simple equivalence is not enough for some. The type (PATH) is not strictly necessary, but would cause the Qt based cmake-gui to present the directory chooser dialog. Would configure the project, build all targets and install to the /usr prefix. On the command line,Ĭmake -DCMAKE_INSTALL_PREFIX:PATH=/usr. You can pass in any CMake variable on the command line, or edit cached variables using ccmake/cmake-gui.
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