Cmake target include directories. Change Include Path of Interface library.

Cmake target include directories add_custom_target() calls, which run during compile time. h) and I want to include the source files via target_include_directories. 1k次，点赞4次，收藏10次。本文介绍了CMake中的target_include_directories函数的使用方法及其重要性。该函数用于指定目标的头文件搜索路径，为项目的编译过程提供必要的依赖关系。文章详细解释了函数的语法和参数，并提供了示例代码以帮助读者更好地理解。 I have done VERY little in the way of compiled programing and having to learn the likes of cmake is part of why. 1 cmake_minimum_required (VERSION 3. I am facing an issue related to the include directory not being known by the consuming target. The INTERFACE, PUBLIC and PRIVATE keywords are required to Arguments to target_include_directories may use “generator expressions” with the syntax $<>. Thus, you could include them with #include "A/include/a. The following CMake file may serve as a starting point: An optional list of base directories of the file set. The PUBLIC headers are used for # compiling the library, and will be added to consumers' build # paths. If SYSTEM is specified, the compiler will be told the directories are meant as system include directories on some platforms. This is simply the current directory CMake is processing (i. Build the main executable. If the SYSTEM option is given, the compiler will be told the directories are meant as system include directories on some platforms. It is basically a certain class, and within its directory there is Repeated calls for the same <target> append items in the order called. I’m working on a C++ project that exports a bunch of libraries and tries to make use of CMakePackageConfigHelpers to be findable using find_package. Depending on the purpose of the included directories, you will need to define the scope specifier – either PUBLIC , PRIVATE or INTERFACE . The headers will be, for most intents and purposes, ignored; the only reason to list them is to get them to show up in IDEs. CMAKE_CURRENT_SOURCE_DIR). c) target_include_directories(foo PUBLIC foo_library_includes) add library(bar source2. An interface library that contains source files will I'm using the submodule GitHub inside my project and now I want to use the target_include_directories for including the file inside the my project class This is my cmake configuration This can appear similar to duplication, so prefer the high-level target_include_directories() command with the SYSTEM keyword and avoid setting the property directly. txt. txt to compile the target foobar: target_include_directories( foobar PUBLIC /usr/local/flac include src ) Tried with: CMake 2. Why not use "include_directories" in CMake? 0. However, I’d like to use a function like the following function(add_special_target library) I wouldn’t say linking libraries directly is outright deprecated, but it’s certainly discouraged if the package you’re linking to provides CMake targets for linking. In addition to accepting values from that PUBLIC headers are used for # compiling the library, and will be added to consumers' build # paths. add_library(lib1 INTERFACE) target_include_directories(lib1 INTERFACE ${CMAKE_CURRENT_LIST_DIR}) target_link_libraries(lib1 INTERFACE lib0) The src/CMakeLists. 2. If SYSTEM is specified, the compiler will be told the directories are meant as system include directories on some platforms (signalling this setting might achieve effects such as the compiler skipping warnings, or these fixed-install system According to the documentation for target_include_directories(), that should be enough: Specified include directories may be absolute paths or relative paths. This property specifies the list of directories given so far to the target_include_directories() command. In my main Project I do have a lib Folder with another library of mine. Finding GLib with CMake: target_include_directories called with invalid arguments. In addition to accepting values from that Specifies include directories to use when compiling a given target. CMake See the cmake-buildsystem(7) manual for more on defining buildsystem properties. Modified 2 years, 5 months ago. In my new project, I create a base library that depends on one of my fetched targets, we’ll call it fetchTarget. When target dependencies are specified using target_link_libraries() , CMake will read this property from all target dependencies to mark the same include directories as containing system headers. txt implies the folder to be standalone is wrong? But then if a particular repository would contain a few cmake projects, how can you tell which CMakeLists. The named <target> must have been created by a command such as add_executable() or add_library() and must not be an IMPORTED target. See my response here . How to do that ? I am trying to use CMake to build a CUDA project. I am currently migrating a couple of CodeBlock projects to use CMake and Visual Studio Code. For now the context of my questions are all Raspberry Pico projects. The code here determines that an empty string is not an absolute path, and so converts it to an absolute path by prefixing it with the current source Hi, in my project, there is add_library(foo source1. 0, also known as Modern CMake, there has been a significant shift in the way the CMake domain-specific language (DSL) Use add_library together with target_sources and, for C++, target_include_directories. where the current CMakeLists. Ask Question Asked 2 years, 5 months ago. I'm using a custom target and custom commands to compile and link the program. 0. That being said, if A and B are similar libraries containing header files of the same name at the same location, that is problematic. This command is rarely necessary and should be avoided where there are other choices. In src, when I define access levels for sources, I’d like to make some . For various reasons, though, I have to resort to using set_target_properties to specify different include paths for different targets in the same scope, by setting INCLUDE_DIRECTORIES property of the target. it locates the nvcc binary). I followe CMake: target_include_directories() can't find header files. First, you use include_directories() to tell CMake to add the directory as -I to the compilation command line. add_executable(myapp myapp. I've started a project with cmake, composed by two executables. The structure of the p I’m having the same issue and I’m using clangd 18. If you cannot use one of the subdirectories, this clearly indicates an issue with the project design. You could also switch to using target_include_directories(<module> PUBLIC . This has been a continual source of misunderstandings from the users I support who without fail have defaulted to Arguments to target_include_directories may use "generator expressions" with the syntax $< See the cmake-buildsystem(7) manual for more on defining buildsystem properties. 为指定目标（target）添加搜索路径，指定目标是指通过如add_executable() The target_include_directories command documents that the specified paths must be either absolute or relative paths. A relative path will be interpreted as relative to the current source directory Each <item> may be:. txt should you use to Where does this code comes from? I don’t think it is correct. 文章浏览阅读2. I try to determine why some transitive INTERFACE_DIRECTORIES doesn’t inherited by some targets in project with large amount of CMake targets and relatively tangled dependencies graph. CMake is smart, and will only compile source file extensions. 8. In addition to accepting values from that Try to use the newly built Tutorial and ensure that it is still producing accurate square root values. h” from target “Lib” which even has “Lib. txt file in the MathFunctions directory, we create a library target called MathFunctions with add_library(). Starting in CMake 3. If BEFORE is specified, the content will be prepended to the property instead of being appended. cmake find all directories by name on the include path and add them to the include path. The buildsystem will have a dependency to re-link <target> if the library file changes. Move the include_directories() call to the top of the CMakeList. target_include_directories(lib PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include> $<INSTALL_INTERFACE:include> PRIVATE src) Repeated calls for the same <target> append items in the order called. CMake issues with target_include directories. If it is created within the project an ordering dependency cmake target_include_directories called with invalid arguments. The src/lib1/CMakeLists. hpp) that are needed by a particular target (e. This is crucial as CMake uses these target properties to automatically propagate public and interface fields to dependent targets. Adding headers to the list of files in the add_executable call doesn't actually add then to the compiler's search path - it's a convenience feature whereby they are only added to the project's folder structure in IDEs. INCLUDE_DIRECTORIES. But I wanted to add that setting CMAKE_CURRENT_SOURCE_DIR doesn't work because this is a CMake set variable. h private to the normal users of the library, but visible to the unit tests. So I made a little test: Specifies include directories to use when compiling a given target. 在 CMake 中，INCLUDE_DIRECTORIES 和 target_include_directories 都是管理头文件路径的重要工具，但它们适用于不同的场景。INCLUDE_DIRECTORIES 简单直观，但在大型项目中会变得难以维护。 相反，target_include_directories 提供了更强大的控制能力，能够为每个目标精确地管理头文件路径。 在现代 CMake 项目中，推荐使用 How can I include target1's include directories (made by target_include_directories(target1 t1/include)) into target2?. It’s been a few days since I cmake’d (cmade? cmooked?) and I find myself utterly confused as to why I can’t include “Lib. txt that automatically finds all sources files in the src directory and also adds all directories as include directories that have a header file in them. I do want to use LibEigen within my main project and within my own library. Note. json, so that clang based tools (clangd) can see the system path. The named target must be created by add_library() within the project or as an IMPORTED library. cpp) target_include_directories(server PUBLIC includes/server # add the server's specific include file ) target_link_libraries I'm pretty sure this is not possible. In addition to accepting values from that Then, update (and simplify!) the call to target_include_directories() in the top-level CMakeLists. 19, an INTERFACE library target may optionally contain source files. PUBLIC doesn’t mean much for an executable; for a library it lets CMake know that any targets that link to this target must also need that include directory. g. Build and Run¶ Make a new directory called Step3_build, run the cmake executable or the cmake-gui to configure the project and then build it with your chosen build tool or by using cmake--build. I have included <nanobind/nanobind. After installation, projects attempting to make use of it, like: Repeated calls for the same <target> append items in the order called. Other options are PRIVATE (only affect the current target, not You're probably missing one or more include_directories calls. This property is used to populate the INCLUDE_DIRECTORIES target property, which is used by the generators to set the include directories for the compiler. Since CMake 3. However, when I use add_library followed by target_include_directories, the relevant commands are not updated in the compile_commands. h, and you want to include that in a source file as Each <item> may be:. The other container is called INTERFACE_INCLUDE_DIRECTORIES, which contains all the directories that are not The above would expand to OLD_COMPILER if the CMAKE_CXX_COMPILER_VERSION is less than 4. If you want to include Project A's import file, you'll have to install Project A manually before invoking Project B's @Tsyvarev - as a complete cmake noob I would prefer to base my choices on some kind of common knowledge instead of my own preferences (; You say that my understanding that CMakeLists. If I try to add include directories to my current target, I'm greeted with the following error: target_include_directories called with non-compliant target type. Projects may also get and set the property directly. If it is created within the project an ordering dependency If setting the INTERFACE_INCLUDE_DIRECTORIES doesn't add the path, older versions of CMake also allow you to use target_include_directories(bar PUBLIC /path/to/include). The INTERFACE, PUBLIC and PRIVATE keywords are required to How to force CMake's target_include_directories() to use absolute path. 0. Ask Question Asked 5 years, 1 month ago. I have two libraries The problem is that the information you are seeking is only available after the generation step. in a three-layered project I’m working on I ended up having to include 10-15 directories in the upper levels. As Learn how to use the include_directories command to add include directories to the build for a target or a CMakeLists file. Also, the "source" directory according to CMake doesn't necessarily have anything to do with the directory of your source files. CMake header file that includes header files from other directory. 14) 2 3 project (example LANGUAGES CXX) 4 5 6 add_library (world) 7 target_sources (world 8 PUBLIC 9 world/world. cpp) target_link_libraries(main bingitup) bingitup is the same name you'd give a target if you create the static library in a CMake project:. Not entirely on-topic, but the comment in the WSDG says: rem Let CMake determine the library download directory name under rem WIRESHARK_BASE_DIR or set it explicitly by using WIRESHARK_LIB_DIR. PRIVATE and PUBLIC items will populate the SOURCES property of <target>, which are used when building the target itself. The INTERFACE, PUBLIC and PRIVATE keywords are required to Hi there, I am wondering how to wield include_directories() and/or target_include_directories() to tell the preprocessor directly to use -iquote or -idirafter as opposed to a mere -I or -isystem. The INTERFACE, PUBLIC and PRIVATE keywords are required to specify the Repeated calls for the same <target> append items in the order called. This may have effects such as suppressing warnings or skipping the contained headers in dependency calculations (see compiler documentation). Specified include directories may be absolute paths or relative paths. cpp grid. CHECK_INCLUDE_FILE_CXX does not 结论. ) In opposite, generator expressions are expanded at the end of configuration process, so that expansion INCLUDE_DIRECTORIES¶. target_include_directories - INTERFACE doesn't export an include path. In addition to accepting values from that command, values may be set directly on any target using the set_property() command. For this exact reason it's a good idea to create a seperate directory containing only the public headers hierarchy; this allows you to do target_include_directories(mylib PUBLIC include). 7 and Ubuntu 14. Thanks for pointing out the “target_include_directories” and “target_compile_definitions”, I wasn’t aware of them. if myapp doesn’t include ${OpenCV_INCLUDE_DIRS}, the source code won’t be able to find opencv headers. 0) find_package(fmt REQUIRED) find_package(OpenCV REQUIRED) add_executable(ocv main. How to fix CMake "target_include_directories called with invalid arguments" Problem: In your CMakeLists. Disclaimer: Taken with small modifications from the question linked below: Arguments to target_include_directories may use "generator expressions" with the syntax $< See the cmake-buildsystem(7) manual for more on defining buildsystem properties. This default behavior can be changed by setting CMAKE_INCLUDE_DIRECTORIES_BEFORE to ON. The only explaination if this code works, it that ${OpenCV_INCLUDE_DIRS} are added globally for all targets by include_directories, or my app doesn’t uses opencv headers at all. The source files for the library are passed as an argument to add_library(). However, when I try to use Then, update (and simplify!) the call to target_include_directories() in the top-level CMakeLists. txt where you call project(. In the CMakeLists. This looks like the following line: TODO 1: Click to show/hide answer Specify include directories to use when compiling a given target. target_include_directories(<target> [SYSTEM] [AFTER|BEFORE] < INTERFACE | PUBLIC | PRIVATE > [items1] [< target_include_directories(<target> [SYSTEM] [BEFORE] <INTERFACE|PUBLIC|PRIVATE> [items1] [<INTERFACE|PUBLIC|PRIVATE> [items2] ]) Specify include directories or The origin of the problem is not the target_include_directories command itself, but the attempt to install a target that has a public or interface include directory prefixed in the source path (i. I am trying to learn Repeated calls for the same <target> append items in the order called. Furthermore you don't need to use absolute paths for non-interface include dirs of the build interface; those dir paths are considered relative to the See the cmake-generator-expressions(7) manual for available expressions. Prefer the target_include_directories() command to add include directories to individual targets and optionally propagate/export them to dependents. Repeated calls for the same append items in the order called. target_include_directories is relevant to the preprocessor (which is usually part of the compiler), since it allows to resolve #include preprocessor directives. A library target name: The generated link line will have the full path to the linkable library file associated with the target. See the syntax, arguments, options and examples of this command. txt file. So these 2 functions are doing quite different Arguments to target_include_directories may use "generator expressions" with the syntax $< See the cmake-buildsystem(7) manual for more on defining buildsystem properties. While it is perfectly fine and desirable to use absolute paths when building the library from scratch, a third Only the INTERFACE modes of the target_include_directories(), target_compile_definitions(), target_compile_options(), target_sources(), and target_link_libraries() commands may be used with INTERFACE libraries. When using CMake's include_directories command, there is a way to specify whether a given directory is a system include directory. A relative path will be interpreted as relative to the current source directory I add that so that the path will be in the exported compile_commands. See the cmake-buildsystem(7) manual for more on defining buildsystem properties. Viewed 455 times 0 . The problem is, I am not a Cmake user, so I am not in a position to make the determination. ). Second, you list the headers in your add_executable() or add_library() call. Viewed 24k times 16 . Whitespace And Quoting ¶. from the build directory. Generator expressions are typically parsed after command arguments. ) to make them public headers of the target itself, but this will likely take more work to iron out the first time you do it. The issue is that the old include_directories works on directory properties, which works out only if the physical layout of the files on the hard disk exactly matches the logical To include headers in CMake targets, use the command target_include_directories(). It’s a question I raised in ticket 12928 and I was referred here. If given a relative path, target_include_directories interprets it with respect to the current source directory. If a generator expression contains spaces, new lines, semicolons or other characters that may be interpreted as command argument separators, the whole expression Hey all, the cmake documentation says: If this variable is enabled, CMake automatically adds for each shared library target, static library target, module target and executable target, CMAKE_CURRENT_SOURCE_DIR and CMAKE_CURRENT_BINARY_DIR to the INTERFACE_INCLUDE_DIRECTORIES target property. See Also. This allows The target_include_directories() command populates this property with values given to the PUBLIC and INTERFACE keywords. CMake Cannot specify include directories when use target_include_directories. target_include_directories(lib PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include> $<INSTALL_INTERFACE:include> PRIVATE src) target_include_directories - INTERFACE doesn't export an include path. For example, add this to CMakeLists. cpp) target_include_directories(myapp SYSTEM PRIVATE "extern/lib/include" ) Specify include directories to use when compiling a given target. txt is). While I have this CMakeLists. You can get those only with e. But this looks too non-flexible, and I think CMake must have an much easier way. See the cmake-buildsystem(7) manual for more on defining If you don't want to include the full path, you can do. add_library(bingitup STATIC bingitup. h" . Over-reliance on target_link_directories() can lead to less maintainable and less portable CMake code. PUBLIC and INTERFACE items will populate the INTERFACE_SOURCES property of <target>, which are INCLUDE_DIRECTORIES¶. My project directory is as follows: Root | - CMakeLists. Repeated calls for the same <target> append items in the order called. Using target_include_directories also makes it easier to provide targets that link a INCLUDE_DIRECTORIES¶. If no BASE_DIRS are specified when the file set is first created, the value of CMAKE_CURRENT_SOURCE_DIR is added. If a generator expression contains spaces, new lines, semicolons or other characters that may be interpreted as command argument separators, the whole expression Once the library is created, it is connected to our executable target with target_include_directories() and target_link_libraries(). This is the deployment CMake and will effectively make these include directories global. If you can afford to use a newer CMake version (2. The above would expand to OLD_COMPILER if the CMAKE_CXX_COMPILER_VERSION is less than 4. 8, native support for CUDA as a language was introduced. The INTERFACE, PUBLIC and PRIVATE keywords are required to specify the To suppress compiler warnings that originate from libraries I use in my application, I manually include their directories with target_include_directories(myapp SYSTEM ) as system libraries before adding them with target_link_libraries like so:. – Alex Reinking. txt should look something like somehow I am struggling with finding out whether it is possible to define an imported library in CMake, specifying target properties (include_directories and library path) and hoping that CMake will append the include directories once I add that project to target_link_libraries in another project. In CMake version 3. 1. txt | - libs | - | - CMakeLists. I know only one way, which is to create a variable and set() include directories in it, and then reuse the variable for another target. json file. 18) project(ocv VERSION 0. Run the cmake executable or the cmake-gui to configure the project and then build it with your chosen build tool. When a project has CUDA as one of its languages, CMake will proceed to locate CUDA (e. List of preprocessor include file search directories. I have a series of questions, but will start with this one I have seen several ways that seem to organize libraries such as in the I am trying to figure out during configure time if the BLAS I find (ubuntu-20. Commented yesterday. Include directories usage requirements commonly differ between the build-tree and the It shouldn't matter if Cmake would correctly append include directories in the order they are provided, that is, the ones of target_link_libraries(mylib PUBLIC alib)then the ones of target_include_directories(mylib PRIVATE ${EXPAT_INCLUDE_DIRS}). The key is installing to a specific path, and we get that path later. The INTERFACE, PUBLIC and PRIVATE keywords are required to specify the I created a project (see here) and am using it in another project through FetchContent. I would like to know if there is anyway to print the include path that is related to specific library , hello for example in this case. 1. Modified 5 years, 1 month ago. The first container is called INCLUDE_DIRECTORIES, which contains all the directories that are included only by the target itself; . I am trying to include LibEigen to my Project. Why is the target_include_directories() function not finding the headers, even though I've provided the exact absolute path? Hello, I have a project with a CMakeLists. Improve this question. 2. cpp) It shouldn't matter if Cmake would correctly append include directories in the order they are provided, that is, the ones of target_link_libraries(mylib PUBLIC alib)then the ones of target_include_directories(mylib PRIVATE ${EXPAT_INCLUDE_DIRS}). To clarify: the SYSTEM option appears to Specifies include directories to use when compiling a given target. Solution¶. How can I include header files contained in the same directory as source files? 1. To include headers in CMake targets, use the command target_include_directories(). Ask Question Asked 6 years, 9 months ago. src builds a library, and test builds an executable testing the library. Specify include directories to use when compiling a given target. This argument supports generator expressions. 18. target_include_directories() Is it possible to get a whole information about target properties/include dirs and all dependencies (include transitive) using the brand new cmake-file-api(7)? Hello everyone. A target gets its initial value for this property from the value of the Is there a way to use target_include_directories to tell CMake where to find the external headers used in my header file? Any help is much appreciated! c++; cmake; Share. Issue. Prefer to pass full absolute paths to libraries where possible, since this ensures the correct library will always be linked. txt, you want to add an include directory such as /usr/include/mylibrary for the executable myexe using code like: target_include_directories( myexe /usr/include/mylib ) With the advent of CMake 3. I am preaty new to cmake . It is recommended to use target_include_directories instead of include_directories for better maintainability and organization of your CMake projects. Adding headers with target_sources is relevant to IDEs (Visual Studio, Xcode, etc. target_include_directories adds an include directory to a target. Use target-specific commands like target_include_directories or better yet target_sources with the FILE_SET HEADERS option. See the cmake-generator-expressions(7) manual for available expressions. (There are many reasons for deferring that propagation. Viewed 592 times 0 . In that case, the order of the include_directory() call is important. By using AFTER or BEFORE explicitly, you can select between appending and prepending, independent of the default. However, this no longer works with CMake 3. See the syntax, arguments, examples and usage requirements for target_include_directories. Then I have to choose between the parameters PRIVATE, PUBLIC and INTERFA If A and B are different libraries containing different header files and paths, there should be no problem doing what you are doing right now. The word INTERFACE tells Cmake that there is nothing to compile. Here's a refresher of I'm trying to bind my C++ code with Python using nanobind. txt file as subdirectory of another CMakeLists. How to properly include headers in CMake? To properly include headers in CMake, you can use the include_directories command in your CMakeLists. txt should look something like this. How do I force CMake's function target_include_directories() to treat the value as an absolute path? For example, I want this line of code: target_include_directories(foobar PRIVATE &quot;% If you don't want to include the full path, you can do. h> in my . txt at the root, and two directories: src and test. I ran a little test where I had three Furthermore CMAKE_SOURCE_DIR should be replaced with CMAKE_CURRENT_SOURCE_DIR, since this enables the reuse of the CMakeLists. Think carefully about the visibility levels. In large projects with lots of internal dependences, it’s a much saner way of handling include paths: e. – Specified include directories may be absolute paths or relative paths. Q: How do the following procedure get the products of the external project? Simply put: INSTALL_DIR, and how? We’ve known that the ExternalProject_Add will do configure, build and install for the external source during the build stage of our base project. The INTERFACE, PUBLIC and PRIVATE keywords are required to Specifies include directories to use when compiling a given target. hpp 10 PRIVATE 11 world/world. This CMake command is used to specify the directories where the compiler should look for header files (. 12, this supports a range, such as VERSION 3. I was using makefiles before but due to QtCreator I am forced to use cmake. cpp) include_directories( /home/ add_library already use the ${CMAKE_CURRENT_SOURCE_DIR}/include/rtc why does target_include_directories do it again? Consider target_include_directories() For header files, use target_include_directories() instead of include_directories() to keep header search paths more localized. find_package(BLAS REQUIRED) try_compile( test_use_mkl ${CMAKE_BINARY_DIR} ${CMAKE_C The source file list comes next, and you can list as many as you’d like. I have a CMake-library add_library(helpers helpers. Why my INCLUDE_DIRECTORIES and INTERFACE_INCLUDE_DIRECTORIES properties are empty But I wanted to add that setting CMAKE_CURRENT_SOURCE_DIR doesn't work because this is a CMake set variable. To be fair, in the end it all boils down to what the package provides in terms of CMake support. A relative path will be interpreted as relative to the current source directory tl;dr: How am I supposed to export the include search-path containing a target’s public headers when using the export command? I thought about trying to use the export command for a library target mylib in order to not have to install the library before using it. cpp) There are two containers of the target to contain the directories that included by the target. c) target_link_libraries(bar PRIVATE foo) Whenever I actually compile bar, foo_library_includes is correctly added to the include path. No two base directories for a file set may be sub Then, update (and simplify!) the call to target_include_directories() in the top-level CMakeLists. The INTERFACE, PUBLIC and PRIVATE keywords are required to The command get_target_properties returns result immediately, so it cannot be affected by transitive propagation, which is performed by CMake only at the end of the configuration process. 04 不过，可以通过命令设置CMAKE_INCLUDE_DIRECTORIES_BEFORE 变量为ON来改变它的默认行为，将目录添加到列表前面。 target_include_directories. Since the directory structure in your project is just there to keep your files organized, one approach is to have a CMakeLists. , an executable or a Learn how to use the target_include_directories() command to specify include directories for a given target in CMake. This property specifies the list of directories given so far to the include_directories() command. A lot of code is used by the two # Make the server (using its own server directory) add_executable(server sources/server/main. So, in your root, say you have /my_lib/foo. . I'm working on a new project, and trying to set up cmake from the ground up for the first time. Your get_target_property() and message() calls run during CMake configuration step. add_executable(main main. The named <target> must have been created by a command such as add_executable() or add_library() and must not be an ALIAS target. 15 target_include_directories adds an include directory to a target. Tools that read compile_commands. I think you're mixing up two different paradigms here. Below is a refresher of what that looks like from the command line: mkdir Step2_build cd Step2_build The INTERFACE, PUBLIC and PRIVATE keywords are required to specify the scope of the source file paths (<items>) that follow them. Here's a refresher of INCLUDE_DIRECTORIES¶. cpp 12) 13 target_include_directories (world 14 PUBLIC 15 world 16) 17 # target_compile_definitions(world PRIVATE "MY_DEFINITION") 18 19 20 add_library Specified include directories may be absolute paths or relative paths. I may delve into Pi or windows later, but for now just Pico. Load 7 more related questions Show fewer related questions Sorted by: Reset to default Know someone who can answer if it is work for you, then it is OK" - I don't want to check it in unless its known to work, or strongly believed to work. Change Include Path of Interface library. 3. h” listed as one of its sources, without explicitly adding Lib’s directory to its include paths. There is no easy way to get this functionality on earlier CMake versions, as the respective target properties that they are based on (INTERFACE_INCLUDE_DIRECTORIES and INTERFACE_COMPILE_DEFINITIONS) are missing. txt: cmake_minimum_required(VERSION 3. json have to understand the tool used in the command line there (this will only get worse with C++ modules as CMake will only generate modules for the actual compiler and clang-tidy, clangd, The directive to add include directories for a particular target being compiled by CMake is target_include_directories. target_include_directories(<target> [SYSTEM] [AFTER | BEFORE] < INTERFACE | PUBLIC | PRIVATE > [items1] [< INTERFACE | PUBLIC | PRIVATE > [items2 Specifies include directories to use when compiling a given target. 6 or newer. Follow asked Oct 8, 2022 at 17:13. We accepted the patches as a courtesy to our users with the understanding the Cmake users would own it and maintain it. export( TARGETS mylib myotherObjectLib FILE mylib-config. No two base directories for a file set may be sub I've tried installing nanobind using pip3 install nanobind, but cmake could not find the nanobind package: find_package(nanobind CONFIG REQUIRED) target_include_directories(ImageProcessingPython PRIVATE ${nanobind_headers} # Include nanobind headers ) The problem is Specify include directories to use when compiling a given target. As you noted, the highly flexible ExternalProject module runs its commands at build time, so you can't make direct use of Project A's import file since it's only created once Project A has been installed. The INTERFACE, PUBLIC and PRIVATE keywords are required to CMake: target_include_directories and #include. cmake ) In general, this works, Specify include directories to use when compiling a given target. 04) is from Intel MKL, or some other vendor. cpp file, and I'm gonna share the content of the CMakeLists. txt in the python/ dir. I would like to avoid having to set COMPILE_OPTIONS or similar explicitly via set(). The problem is, I've read and watched some videos about CMake, and everyone recommend not to use include_directories, and instead use target_include_directories. If SYSTEM is specified, the compiler will be told the directories are meant as system include directories on some platforms (signalling this setting might achieve effects such as the compiler skipping warnings, or these fixed-install system files not being As shown above, ${CMAKE_CURRENT_SOURCE_DIR}/include should be in the INTERFACE_INCLUDE_DIRECTORIES after target_include_directories, However, it prints an empty string instead. In addition to accepting values from that Describe to CMake which libraries you're building, which source files comprise them, and how they depend on each other. h or . ) so they can display these header files, even if they are not directly compiled. Add include directories to a target. Here I have add_library( myBase SHARED ) target_link_libraries( myBase PUBLIC fetchTarget ) This builds myBase just fine. The INTERFACE, PUBLIC and PRIVATE keywords are required to specify the 在CMake中，可以使用target_include_directories命令来指定项目的头文件目录，使得编译器能够正确地找到这些头文件。总结起来，通过使用target_include_directories命令，我们可以在CMake中指定项目的头文件目 Repeated calls for the same <target> append items in the order called. I seem to be having trouble setting the include path (-I) using the include_directories() command in CMake. 11 or higher), prefer target_include_directories over include_directories and most of your problems should disappear right away. e. the include directory is a subdirectory of your ${PROJECT_SOURCE_DIR}. As How do I force CMake's function target_include_directories() to treat the value as an absolute path? For example, I want this line of code: target_include_directories(foobar PRIVATE &quot;% Skip to main content An optional list of base directories of the file set. The actual compiler needs another type of project file, which is not compatible with CMake. Depending on the purpose of the included directories, you will need to define the scope specifier – either PUBLIC , Target-Specific Includes You can also specify include directories for specific targets in your CMake project using the target_include_directories () command. You can use the CMAKE_SOURCE_DIR variable to use the top-level source directory in your target_include_directories() call. I have the following layout. Any relative path is treated as relative to the current source directory (i. INCLUDE_DIRECTORIES property of dependent target is not populated in CMake. Modified 1 year, 8 months ago. How to use include_directories correctly in cmake? 18. If SYSTEM is specified, the compiler will be told the directories are meant as system include directories on some platforms (signalling this setting might achieve effects such as the compiler skipping warnings, or these fixed-install system INCLUDE_DIRECTORIES¶. krjfldy fgvn vzzy jmysb ejuw ehw xhqtd fdjpc zuqua inc