Cmake list foreach 01 Nov 2022 c-plus-plus cmake. Modified 6 years, 5 months ago. 4. Qt, VTK), which add further items to the target link list, eventually making it too big for the linker to handle. com Tue Aug 28 10:39:59 EDT 2018 A search path will be converted to a cmake-style list separated by ; characters. CMake is used to control the software compilation process using simple platform and compiler independent configuration files. txt file with multiple CMakeLists. Usage. ├── CMakeLists. Kadłubowski tadeusz. h" #include "baz. SET (SRCS main. 2 Documentation » cmake-commands(7) » break; break¶ Break from an enclosing foreach or while loop. , "foo1;foo2;foo3". Converting a list back into a string requires a foreach loop or a regex. # Function: EXCLUDE_FILES_FROM_DIR_IN_LIST # Description: Exclude all files from a list under a specific directory. It leaves that mission to noms-config. For example: SET(my_prefix_var1 "bob1") SET(my_prefix_var2 "bob2") # Get all variables GET_CMAKE_PROPERTY(vars VARIABLES) # Filter by prefix and build the "res" list In this variant, <lists> is a whitespace or semicolon separated list of list-valued variables. Note. If you check the documentation of foreach() ( http://www. if multiple variable names passed, their count should match the lists This is a big plus if you have lots of files. CMake commands are case And use a nested foreach to extract all of the contents. txt cmake_minimum_required(VERSION 3. If A is specified, then it will display also advanced variables. Improved @AlwaysTraining's and @PaulMolodowitch's answers. This MRE script sort of describes my work flow (which is more complicated: I foreach(IN ITEMS iterates over arguments. The project is structured in subdirectories, and for this I use the add_subdirectory() command. add_custom_target(examples) foreach (FILE ${EXAMPLE_FILES}) # Every foreach ----- Evaluate a group of commands for each value in a list. cmake gets the list in the foreach(_expectedTarget target1 target2targetn) statement and Is it possible to create custom properties list optionsList which will contains only my options OPTION_1 and OPTION_2 and then get it like that: get_cmake_property (_variableNames optionsList) ? CMake version : 3. Follow edited Mar 8, 2017 at 10:53. For make a single target to create multiple executables just make this target dependent from these executables. Supposedly discouraged by modern cmake practices: each file ought to be specified manually but who in their right mind would bother with that for large repos? CMAKE_BINARY_DIR. This will effectively display current CMake settings []. In this case, an executable named Foo is created from the source file bar. h;quz. in without tracking every target that is added in myriads of sub-projects of a project. Say given a search_paths: /a/b, /c, /d/e. answered Apr 22, 2014 at 19:05. I fixed that by making my scriptfile. However, the definitive list of path to binary libraries is not provided within those targets, so it is not possible to easily acquire the needed list of dependencies to copy via CMake command. 47. This Page. break() Breaks from an enclosing foreach() or while() loop. I don't think the solution is to add list operations for strings. h" it would make the file. 3. If you want to understand how CMake finds libraries on your computer checkout the find-script modules. See also the continue() command. cmake file i think Leiaz is right. . if multiple variable names passed, their count should match the lists It gets simpler if you remember, that passing a list by value is very inefficient in CMake (as it is in other languages), so each time a CMake function asks you for a list, it will always do this by reference, i. CMake: Iterate over multiple source files for multiple executables. You can inspect the value of any variable by dereferencing it with the ${} operator, as in bash shell. You can inspect the value of any variable by dereferencing it with the ${} operator, as in My code in a C++ project is organised as follows. CMake is part of a family of tools designed to build, test and package software. The following CMake file may serve as a starting point: You’ll notice that the inner foreach loop’s list is doubly dereferenced. Solves problem with INTERFACE_LIBRARY described in kyb's comment. My code is along the lines of the following ( CMake » 3. SET(VTKLIBS_DIR) FOREACH(LIB ${VTKLIBS}) SET(FOUND_LIB) FIND_LIBRARY(FOUND_LIB ${LIB}) Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company I've a cpp file directory having files like: a. Both of these commands support loop control mechanisms: The break() loop stops the execution of the foreach (loop_var IN [LISTS [list1 []]] [ITEMS [item1 []]]) Iterates over a precise list of items. cpp b. dardenne at technooliq. foreach(elem IN LISTS my_list other_list) # use The first argument of the foreach command is the name of the variable that will take on a different value with each iteration of the loop; the remaining arguments are the list of values over which foreach(< loop_var > IN [LISTS [< lists >]] [ITEMS [< items >]]) In this variant, <lists> is a whitespace or semicolon separated list of list-valued variables. add_execuctables. If you All commands between foreach and the matching endforeach are recorded without being invoked. Loops in CMake are fairly straightforward – we can use either while() or foreach() to repeatedly execute the same set of commands. However, if the variable is a I’m trying to write a CMake function that takes a list as an argument, and that adds items to the list, and then returns so that the caller can use the modified list. Be careful when counting with negative indices: they do not start from 0. List cache variables will run CMake and list all the variables from the CMake cache that are not marked as INTERNAL or ADVANCED. . So if i run: Note that "collect all source files with glob" is not recommended in CMake: We do not recommend using GLOB to collect a list of source files from your source tree. In Config mode find_package handles REQUIRED, QUIET, and [version] options automatically but Thank you. Three typical CMake string concatenation methods. I have a cmake function which expects a list as one of its arguments. Before each iteration of the loop “${loop_var}” will be set as a variable with the current value in the list. Historically this evolved in the very early days when someone said I'd like implement a function in cmake to search a list of path recursively. All commands between foreach and the matching endforeach are recorded without being invoked. Create a new policy scope. CMake 3. The following cmake_minimum_required(VERSION 2. find_package(MY_PROJECT_DEPENDENCIES REQUIRED). For example: Your macro: macro(add_own_executable target files libs) add_executable(${target} ${${files}}) target_link_libraries(${target} ${${libs}}) endmacro(). by unsubstituted name. The advantages of using hardcoded file lists are: CMake will track the dependencies of a new file on disk correctly - if we use glob then files not globbed first time round when you ran CMake will not get picked up All commands between foreach and the matching endforeach are recorded without being invoked. graph See also Generating Dependency Graphs with CMake and CMake Graphviz Output Cleaner. The continue() loop stops the execution of the current iteration and starts at the top of the next I'm trying to set a cmake variable to a list from the commandline (bash, but probably the same problem with other shells). SCOPE_FOR. Before each iteration of the loop ${loop_var} will be set as a variable with the current value in the list. 8\share\cmake-2. cxx files have a main() method, so I need to add a different executable for each of these files having the same name as the file. Not globbing causes you to lose the CMake logic amongst huge lists of files. For example, if you had this macro: macro( FindLibs SomeVar1 SomeVar2 ) And use it like this: FindLibs( "value1" "value2" zlib png jpeg), then ${ARGV} would hold value1;value2;zlib;png;jpeg, which may not be what the user would want. 9k 28 28 The message() command joins the strings from this list and for log levels of NOTICE and below, it prepends the resultant string to each line of the message. Hi Cedric. For that, you can make an extra call to get_targets_by_directory(ALL_TARGETS ${CMAKE_CURRENT_LIST All commands between foreach and the matching endforeach are recorded without being invoked. Best Regards, Igor foreach() loop variables are only available in the loop scope. cmake script, which is searched and executed when one issues the command. h" #include "bar. txt file changes when a source is added or removed then the generated build system cannot know when to ask CMake to regenerate. (Note macro arguments are To create a list, the set() command can be used. All commands between block() and the matching endblock() are recorded without being invoked. For example, set(var a b c d e) creates a list with a;b;c;d;e, and set(var "a b c d e") creates a string or a list with one item in it. See also CMAKE_CURRENT_LIST_FILE. ; Now, each of the . Full path to the CMake file that included the current one. POLICIES. if multiple variable names passed, their count should match the lists In this variant, <lists> is a whitespace or semicolon separated list of list-valued variables. 2 Documentation » cmake-commands(7) » endforeach; endforeach¶ Ends a list of commands in a foreach block. I have not figured out how can I pass the list to add_custom_command without manually re-listing all the files in the add_custom_command. Once again your intuition was spot-on, and indeed CMAKE_INSTALL_FULL_BINDIR wasn’t defined at install time. This pattern is used throughout CMake, the most common example is the compiler flags options, which CMake In CMake, I want to get all property names that are set for a target. Added a function to make it easy to exclude another directory. cpp xy. 7. CMake is not a general purpose programming language. If the variable is of type string, it works. e. Yeah, the support from the list() command for that syntax still need some care, but “manually” it’s quite possible. The optional <loop_var> argument is supported for backward compatibility only. Each cpp file has a main function, so I wish to build each file into an executable. 功能. This is equivalent to set (ITEMS_TO_REMOVE "${CMAKE_CURRENT_LIST_DIR}/item; ${CMAKE_CURRENT_LIST_DIR}/item2; ${CMAKE_CURRENT_LIST_DIR}/item3") Share. If no CMakeLists. com> wrote: > > Hi, > > is it possible to list the subdirectories from a given folder? > I use this function but it returns me the file in the current How can i get the result of a bash command in a list variable ? Say I have the output of a command, run in cmake using execute_process (this output can be 100-200 lines large):. The following example shows how the LISTS option is processed: In this variant, <lists> is a whitespace or semicolon separated list of list-valued variables. All commands between ``foreach`` and the matching ``endforeach`` are recorded without being invoked. cpp dir2/file3. set() Just combine strings like in bash In this variant, <lists> is a whitespace or semicolon separated list of list-valued variables. It is_similar_ (but different) to shell and word splitting - arguments are not equal to space All commands between foreach and the matching endforeach are recorded without being invoked. I want to compare the last item with the second to last item, but I can't find an easy way to retrieve these elements so I can compare them. In case it's not already implicit I need the algorithm to return stable results. – rbaleksandar. I have defined a variable in CMakeLists. h;baz. (Note that macro The foreach function resembles the for command in the shell sh and the foreach command in the C-shell csh. In How to print all the properties of a target in cmake? they use cmake --help-property-list to list a predefined set. find_package(noms COMPONENTS fruit veg) From the find_package documentation:. CMake generates native makefiles and workspaces that can be used in the compiler environment of your choice. In CMake's wiki, I found a LIST_CONTAINS macro, but the wiki page is outdated. Please keep in mind that I am actually using additional libraries not listed in this CMake (e. You can extract the include directories from each target using get_target_property(). txt". The issue was that the path I was providing to GLOB wasn't valid, and it was reverting (gracefully, but annoyingly) to CMAKE_CURRENT_SOURCE_DIR. html), you will see there is no "IN item item"syntax Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Visit the blog In this variant, <lists> is a whitespace or semicolon separated list of list-valued variables. I have wrangled with CMake for a few days; I needed to set compile options for all but one file in the target. This command will set the value of a variable into the parent directory or calling function (whichever is applicable to the case at hand). By adding EXCLUDE_FROM_ALL keyword to add_executable call, the building of the executable will be excluded from make all. I need the listing files created at compilation time (with the option -Wa,-anhlmsd=<file_name>. (Note macro arguments are foreach Evaluate a group of commands for each value in a list. if multiple variable names passed, their count should match the lists CMake doesn't process COMPONENTS list automatically. This "works" with just cmake: FILE(READ "${file}" contents) # Convert file contents into a CMake list (where each element in the list # is one line of the file) # STRING(REGEX REPLACE ";" "\\\\;" contents "${contents}") STRING(REGEX REPLACE "\n" ";" contents "${contents}") The reason I say "works" (in quotes) is that there are two caveats wherein it [CMake] Iterating over a generator expression list, specifically $<TARGET_OBJECTS:objlib> of an OBJECT library Eric Noulard eric. if multiple variable names passed, their count should match the lists Variables in CMake are always of string type, but certain commands can interpret them as other types. If H is specified, it will also display help for each I want to execute a CMake command in a subdirectory with execute_process, and also pass some cache variables as -D options. I worked with Bazel for a year before switching to Cmake. If used it must be a verbatim repeat of the <loop_var> argument of the opening foreach clause. 8\Modules\ and there the file: 'FindBoost. 16. This pattern is used throughout CMake, the most common example is the compiler flags options, which CMake Basically one add_custom_command for each file generated, collect a list of those files (trofiles), then use add_custom_target with a DEPENDS on the list trofiles. Here is my function: FUNCTION(R_SEARCH search_paths return_list) FOREACH(search_path ${search_paths}) # POINT A In this variant, <lists> is a whitespace or semicolon separated list of list-valued variables. If you want to declare a list variable, you will have to provide it as a ;-separated string. If the real issue is what NOT to include in installation builds, this is an elegant solution. a java classpath argument into a cmake list of command line > > options. The forms LISTS A and ITEMS ${A} are equivalent. h" #include "quz. if multiple variable names passed, their count should match the lists With PARENT_SCOPE option you change value of variable in the parent scope, but a variable in the current scope is unchanged. The foreach function resembles the for command in the shell sh and the foreach command in the C-shell csh. lst). CMake » 3. org/cmake/help/v3. try linking to $<$<CONFIG:Release>:A> in the minimal exampe. Functionally my implementation does at most the same as @PaulMolodowitch's implementation. Previous topic. cpp dir2/file4. txt file in my projects root directory, listing every source file required for my executable:. 遍历list所有元素. txt ├── cm Listing header files as add_executable arguments has no effect on whether changing them causes the executable to rebuild. The top of the include stack is always the CMakeLists. if the only loop_var given, then it sets a series of loop_var_N variables to the current item from the corresponding list;. starball. Predelnik. Improve this question. I’m trying to write a CMake function that takes a list as an argument, and that adds items to the list, and then returns so that the caller can use the modified list. The syntax of the foreach function is: Photo by Hannah Joshua on Unsplash. I checked this post, but problem still exist. I could generate a variable in CMake with appropriate syntax, but generating output in config file would let the CMake source file clean and could be possibly very powerful. The foreach command iterates over each 如果提供了CMake的构建方式就挺好，万一没有提供，就得自己想办法组织工程进行构建。 注意，依赖库本身是需要依赖库的！ 比如，你构建GDAL的时候会发现PROJ是GDAL CMake lists are essentially just semicolon-separated strings, but if you pass such a variable to a command, it does get expanded into multiple arguments - for example, I used a list to store names of libraries, and I would like to use foreach and find_library to find full path of each library. The LISTS option names list-valued variables to be traversed, including empty elements (an Iterates over a precise list of items. 4. Ask Question Asked 6 years, 5 months ago. HTH, David On Mon, Jul 25, 2011 at 7:50 AM, Julien Dardenne <julien. A \; outside of any Variable References encodes itself. Table of Contents. Move lines 8-15 of the example to the end of the > The documentation (cmake --help-command foreach) is quite clear that the one > arg form of the range command loops from 0 to total including total >> >> foreach(i RANGE ${list_count}) >> >> list(GET list ${i} x) >> >> endforeach(i) >> >> All commands between foreach and the matching endforeach are recorded without being invoked. And you are right CMAKE_C_STANDARD_LIBRARIES should be a list. if the only loop_var given, then it sets a series of loop_var_N variables to the current item from the corresponding list;; if multiple variable names passed, their count should match the lists Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Visit the blog Careful: ${ARGV} holds all of the arguments provided by the macro, including the ones already defined. But it does provide a path to binaries and a list of libs for each package. I use this strategy for creating new test targets and adding the name of these targets to a list of targets in the main scope. Always use double quotes around the <path> to be sure it is treated as a single argument to this command. cmake with such list or unset() statements be blocked in myprojectConfig. IMHO, escaping the ';' would allow this but I couldn't find out > > how :- How do I get the last element of a CMake list of unknown length? Ask Question Asked 5 years, 6 months ago. if multiple variable names passed, their count should match the lists I am trying to collect a list of all of the executables my project generates and create a make target that runs all of the binaries. Specify which scopes must be created. get_all_targets(ALL_TARGETS ${CMAKE_CURRENT_LIST_DIR}) ALL_TARGETS should now be a list holding the names of every target created below the caller's directory level. I’ve verified that cmake list subcommand do not recognize ;-separated list. com> wrote: > On Wednesday, June 02, 2010 10:24:44 am Doug Reiland wrote: >> Is it possible to implement a list of lists. The problem is there are some variables in CMake which are currently strings that should be lists. graph dotty test. similar to cmake --help Boost. foreach(<loop_var> <items>) <command> endeach() My understanding is that in CMake, a semicolon-separated string is implicitly a list, which seems to be borne out by my example below: # CMakeLists. So how do I use cmake to find and lo Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company file(GLOB sources_list LIST_DIRECTORIES true YourGLOBPattern) foreach(dir ${sources_list}) IF(IS_DIRECTORY ${dir}) add_subdirectory(${dir}) ELSE() CONTINUE() ENDIF() endforeach() The LIST_DIRECTORIES option was added in cmake 3. After looking at the FindBoost. so if HDR_LIST="foo. c. Nowadays CMake supports “nested lists” (i. if multiple variable names passed, their count should match the lists Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company In this variant, <lists> is a whitespace or semicolon separated list of list-valued variables. -0 is equivalent to 0, the first list elem All commands between foreach and the matching endforeach are recorded without being invoked. if multiple variable names passed, their count should match the lists Table of Contents. In cmake, a list is represented by a string with the list elements separated by semicola. Furthermore, and the more serious issue, not all generator exprression are valid in add_custom_command. Hi, I am trying to minimize the size of my CMakeLists. h;bar. 6 Documentation » Ends a list of commands in a foreach block. 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. Show Source; Found a solution that works for me. [CMake] How to find list of directories Michael Hertling mhertling at online. Especially if one has a more than one special build-targets (add_custom_target) into a common build-directory, this is easier to maintain. I’m using cmake 3. The syntax of the foreach function is: $(foreach var , list , text ) Loops in CMake are fairly straightforward – we can use either while() or foreach() to repeatedly execute the same set of commands. &Vcy;&ocy;&zcy;&vcy;&rcy;&acy;&shchcy;&acy;&iecy;&tcy; &scy;&tcy;&rcy;&ocy;&kcy;&ucy;, &scy;&ocy;&iecy;&dcy;&icy;&ncy;&yacy;&yucy;&shchcy;&ucy;&yucy; &vcy;&scy;&iecy CMake is a cross-platform, open-source build system. cpp c. While the answer to this particular question will be best handled via set or string, there is a third possibility which is list if you want to join strings with an arbitrary character. cmake? . I am assuming you have a list of files, let's say INCLUDE_FILES. In this variant, <lists> is a whitespace or semicolon separated list of list-valued variables. 20) project Here's how I solved a similar problem which was marked a duplicate of this question. The command to execute is cmake which has its full path specified in the All commands between foreach and the matching endforeach are recorded without being invoked. I am trying to get a list of all object files that are used for creating a shared library. if multiple variable names passed, their count should match the lists In my CMake project I need to add a list of subdirectories. Next topic. Can I use CMake as a scripting language (or a foreach) or is it mandatory to put List non-advanced cached variables. This is because the first dereference turns list_name into the name of the sub-list (a, b, or c in the example), then the second dereference is to get the value of the list. Modified 5 years, 6 months ago. Possibly a selection of files spread over a number of subdirectories, e. When specifying index values, if <element index> is 0 or greater, it is indexed from the beginning of the list, with 0 representing the first list element. The LISTS option names list-valued variables to be traversed, including empty elements (an empty string is a zero-length list). It defaults to true I don't know any function to do that, but you can easily build one yourself by requesting all defined variables with GET_CMAKE_PROPERTY and then filtering the list with a regex. > > > > I couldn't find a non-hackish way to include a variable into a cmake > > list, e. The following example shows how the LISTS option is processed: Since the directory structure in your project is just there to keep your files organized, one approach is to have a CMakeLists. txt. Once the endforeach is evaluated, the recorded list of commands is invoked once for each argument listed in the original foreach command. But find_library just returned the path of the first library. aa bb cc dd ee ff Now, I need to get this output into a cmake list variable, so that i can iterate over each line using foreach. cpp . "x;y;z" would become "x;y;z b"). The foreach command iterates Iterates over a precise list of items. Previous message: [CMake] > > The CMakeLists. Then, we can concatenate the list of include directories together using foreach(). The following example shows how the LISTS option is processed: On Wed, Jun 2, 2010 at 12:34 PM, Clinton Stimpson <clinton at elemtech. g. The TO_NATIVE_PATH mode converts a cmake-style <path> into a native path with platform-specific slashes (\ on Windows hosts and / elsewhere). Even passing a list of two empty elements as ";" works as In this variant, <lists> is a whitespace or semicolon separated list of list-valued variables. indigo. header files from across the source tree, as opposed to everything in a single subdir like in the other answers. Since CMake macros perform a single-level of text replacement, one way to pass lists to a macro is to actually pass the names of lists and then inside the macro double dereference the lists. com Mon May 6 10:44:22 EDT 2019. Commands add_compile_definitions() add_compile_options() add_custom_command() You’ll need to get the length and build up an array using string(JSON out GET json path. I have a list of every file I need to copy to the build directory and also add to the zip file. Viewed 801 times For some reason, foreach() recognize _blas as list and list() subcommand does not. --target help And there is the graphical output solution (example found here): cmake --graphviz=test. Previous message (by thread): [CMake] CMakeSL - a project that I've been working on Next message (by thread): [CMake] c++2a Messages sorted by: The behavior is as expected. The following example >> shows cmake ending up with a list with 6 elements instead of >> a list with 2 elements with each element being a list with 3 In this variant, <lists> is a whitespace or semicolon separated list of list-valued variables. I currently define a ${SRCS} variable in the CMakeLists. Thanks, I didn’t think All commands between foreach and the matching endforeach are recorded without being invoked. If <element index> is -1 or lesser, it is indexed from the end of the list, with -1 representing the last list element. The foreach command iterates over each item in each given list. if multiple variable names passed, their count should match the lists @Tsyvarev cannot be evaluated to target names, wrong, they absolutely can. should exist at the call time, should, maybe, have to, definitely not. The foreach command iterates over each list simultaneously setting the iteration variables as follows:. If I understand correctly, you are looking to calculate the exponential component for the powers of two for the given sizes:. 3 (not 3. Improve this answer. So "Hello" "There" "World" is internally represented as Hello;There;World. The sequence \; does not divide a value but is replaced by ; in the resulting element. ${n}). This is explicitely descrbed in the documentation about PARENT_SCOPE:. I am trying to write a function in CMake which will take a list, and update it such that each item in the list is prepended with an additional string. 2/command/foreach. de Thu Dec 15 09:44:01 EST 2011. If the user only wants CMake: create a list and iterate over it to set SOURCE properties. edit. 语法如下. CMake commands are similar to C++/Java methods or functions, which take parameters as a list and perform certain tasks accordingly. Adding the faculties of a programming language will prevent it from becoming bloated in the first place. Once the endforeach is evaluated, the recorded list of commands is invoked Thank you. h files which contains my classes; I have several . I can pass an empty list as "", a list of one element as "foo", and a list of multiple elements as, e. Then use add_dependencies to make the LibraryTarget depend on the custom target. 21 and above prefer to leave the loop variable in the state it had before the loop started, either set or unset. In windows you can find them in: C:\Program Files (x86)\CMake 2. CMake build targets are added by “add_[executable,library,custom_target]” commands. array. A dict than can be stored similar to lists (w CMake is a cross-platform, open-source build system. Variable that holds path to the directory where cmake was similar to cmake --help-variable-list, is there a way to create a list of genex operator? I need this to create a set of text snippet. kadlubowski at pix4d. cpp and . -- from documentation – But the name of the function are just in a List in CMake, the C syntax is not valid. Is there a way to list all of the targets from my top level project? Can new variable be put into myprojectConfig. The difference you can see e. cmake/myprojectConfig. I would like to loop over list of items, given in a string. endforeach([<loop_var>]) See the foreach() command. Viewed 4k times 6 I have a list of unknown length containing strings. in the foreach() command accepting ITEMS or LISTS . h files. cpp dir1/file2. hex (hex) April 28, 2021, 1:43pm 1. 20 and below always leave the loop variable set at the end of the loop, either to the value it had before the loop, if any, or to the empty string. This is what I was looking for, I got it working now. a list variable wrapped into [/ ] can be atomically inserted/extracted into/from another list). This pattern is used throughout CMake, the most common example is the compiler flags options, which CMake In this variant, <lists> is a whitespace or semicolon separated list of list-valued variables. Here the target is simply Foo and we are adding a post build command. txt below added with add_subdirectory that define targets. I want to have a return_list with paths of directories under given search_paths which contains . 0-rc1. I'm asking this as it would require a lot of work to add all the cpp files manually into CMake, especially when working with multiply people. This function takes a string BinaryName and adds it to the list OutVariable which is available in the parent scope. The correct way is not nice because I can not pass a list: add_subdirectory(Helpers) add_subdirectory(Lib1) add_subdirectory(Lib2) subdirs can pass a list, but is deprecated: You could use foreach(): In this variant, <lists> is a whitespace or semicolon separated list of list-valued variables. mensinda (Daniel Mensinger) April 13, 2020, 5:36pm 7. cmake into scriptfile. 有序遍历容器的所有元素; 可以使用break() 或者continue() 1. h" All commands between foreach and the matching endforeach are recorded without being invoked. Lists ¶ Although all values in CMake are stored as strings, a string may be treated as a list in certain contexts, such as during evaluation of an Unquoted Argument. Commands add_compile_definitions() add_compile_options() add_custom_command() I am creating a zip file in CMake for every build I run. But if you have a target that defines other properties, how can I know which are they? Sorry for the spam, after posting a solution dawned on me. Commented Feb 8, 2018 at 13:50. A target's INCLUDE_DIRECTORIES property contains the include directories for that target. txt file by iterating over my source files and using a foreach() to add my executables (each of my source files is a seperate executable). if multiple variable names passed, their count should match the lists All commands between foreach and the matching endforeach are recorded without being invoked. Next is the add_custom_command invocation. Variables in CMake are always of string type, but certain commands can interpret them as other types. What about wrapping dict pairs into {/ }? (Yeah, lets reserve (/ ) for tuples ;). In GNU Make I would have written this: DEF=FOO BAR BAZ CMAKE_REQUIRED_DEFINIITIONS=$(addprefix -D,$(FOO)) Is there an equivalent in CMake other than doing this: Given a class: class foo { public string a = ""; public int b = 0; } Then a generic list of them: var list = new List<foo>(new []{new foo(), new foo()}); In this variant, <lists> is a whitespace or semicolon separated list of list-valued variables. The following example shows how the LISTS option is processed: It doesn't answer the OP's question as question was rather specific. 32, 64, 128, 256, 512 These are powers In this variant, <lists> is a whitespace or semicolon separated list of list-valued variables. Commands add_compile_options() add_custom_command() add_custom_target() add_definitions() In this variant, <lists> is a whitespace or semicolon separated list of list-valued variables. if multiple variable names passed, their count should match the lists The cmake-env-variables(7) manual documents environment variables that have special meaning to CMake. While processing a CMake file loaded by include() or find_package() this variable contains the full path to the file including it. txt for the current directory. code-block:: cmake foreach() endforeach() where `` `` is a list of items that are separated by semicolon or whitespace. Is this still the best way to go, or has CMake gained new capabilities? cmake; Share. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Programatically get a list of CMake target names. Note that it does not include any targets created in the current CMakeLists. However, if the header files are #include-d normally by the source files of the exe, the dependency on them should be picked up automatically by CMake (and I can assure you that in normal cases, it works. cxx files which have to be compiled against the . CMake支持条件语句（if）和循环（foreach），使得在构建过程中可以根据不同的条件执行不同的操作。这对于处理平台差异性非常有用。例如，你可以根据是否是在Windows环境下来添加特定的编译标志。 CMake的模块化设计 Makes a list of paths to all files satisfying the wildcard in specified directory and it's sub-directories. 6 The foreach Function. The only criteria for the selected files are that they match a glob/pattern, for example "*. foreach(<loop_var> <items>) <commands> endforeach() where <items> is a list of items that are separated by semicolon or whitespace. Here's an example project structure: . cpp files and some external libraries. I'd like to walk a tree and end up with a list with a maximum of one file from each directory. It sounds simple foreach(<loop_var> IN [LISTS [<lists>]] [ITEMS [<items>]]) In this variant, <lists> is a whitespace or semicolon separated list of list-valued variables. Example: list( APPEND listVar one two three ) message( VERBOSE [[ Collected items in the "listVar" : ]] ) list( APPEND CMAKE_MESSAGE_INDENT " " ) foreach( item IN LISTS listVar ) message All commands between foreach and the matching endforeach are recorded without being invoked. Here’s cmake --build . 8) The most obvious one is to just iterate element-wise over the list: foreach(elem ${my_list}) # use elem here endforeach() or. You’ll notice that the inner foreach loop’s list is doubly dereferenced. For some_magic_function to be passed the list of sources, firstly you'd need to avoid setting them in PARENT_SCOPE since they're not available in the scope of the subdir's CMakeList. CMakeList. I had the same issue where no matter what path I specified, I would get a glob from CMAKE_CURRENT_SOURCE_DIR. You also wouldn't need to pass the ${CMAKE_CURRENT_SOURCE_DIR} to the function, since it will be available inside the function, regardless of where the function itself is As I have read here that this is discouraged by CMake I would like to know if I can list the source files explicitly for CMake using CMake, as I am not familiar with scripting languages like Python. Both of these commands support loop control mechanisms: The break() loop stops the execution of the remaining block and breaks from the enclosing loop. 28. Once the endblock() is evaluated, the recorded list of commands is invoked inside the requested scopes, then the scopes created by the block() command are removed. Cmake is a nightmare of complexity Unfortunately, it sounds like you need to support an older CMake than has foreach (key value IN LISTS ARGN), so you’ll have to do the pairing manually. Basically, I want to take a source lists (for now, just a variable ${HDR_LIST}), and write them ALL as includes in a file. It's basically In this variant, <lists> is a whitespace or semicolon separated list of list-valued variables. For compiler flags this isn't a big deal because those separate arguments are going to be joined with spaces before being passed to the compiler anyway, but it's still Table of Contents. Is there any way that I can use a list and define the items directly there like I did using set? It seems I need to use set and then use foreach and add them one by one based on my solution which seems weird. cmake. if multiple variable names passed, their count should match the lists It doesn't seem to work with empty lists, but if you initialize the list with some dummy value, as you did in your second example set(FOO "dummy"), you can continue to use FOO as a list and also append empty elements to it. block. What is going on? cmake; Share. asked 2018-03-08 21:27:31 -0600. if multiple variable names passed, their count should match the lists The foreach() / endforeach() and while() / endwhile() commands delimit code blocks to be executed in a loop. hello_lib_object>) foreach(obj $<TARGET_OBJECTS:hello_lib_object>) add_custom_command(TARGET hello_lib_shared PRE_BUILD COMMAND echo "I would like to run objcopy here" DEPENDS $<TARGET_OBJECTS:hello_lib_object> ) endforeach() for I have a top level project CMakeLists. # Create the custom target before loop. Get list of CMake target names April 23, 2022. -Bill [CMake] Problem with foreach() iteration over a list that uses generator expressions Tadeusz A. org foreach module. cpp) How can I distribute this list across the CMakeLists. if multiple variable names passed, their count should match the lists Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Visit the blog Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company This seems like something that should be easy to do, but I cant for the life of me figure out how to do it. txt as follows: set(MY_PROJECT_DEPENDENCIES boost-core boost-optional sqlite3) I want to check if there are found using find_package() as follows:. to. Follow edited Mar 27, 2023 at 20:25. Follow 8. txt file inside the plugin folder will do a foreach() to use > add_subdirectory() for CMake: Variables Lists Strings; CMake: Useful Variables; CMake set() Command; CMake string()Command; CMake list() Command; Cmake: Generator Expressions; The Scope or "What value does my variable have?" First there are the "Normal Variables" and things you need to know about their scope: foreach Evaluate a group of commands for each value in a list. @rbaleksandar No, that's not how it works. Lists can be manipulated with the list family of commands. The foreach function is similar to the let function, but very different from other functions. in, then using configure_file to store the value of CMAKE_INSTALL_FULL_BINDIR at configuration time and then run it at install time. foreach(<loop_var> <items>) <commands> endforeach() where <items> is a list of items that are separated by semicolon or Say I have the output of a command, run in cmake using execute_process (this output can be 100-200 lines large): aa bb cc dd ee ff Now, I need to get this output into a Boost. 5,236 2 2 gold badges 26 26 silver badges 37 37 bronze badges. So a simple solution is to replace semicolons with newlines: string (REPLACE ";" "\n" txt "${txt}") This works in this example, however lets try a more complicated example: All commands between foreach and the matching endforeach are recorded without being invoked. Here is what I did for anyone else that might need a solution (or care to propose a better one): function The first command in this example is the standard command for creating an executable from a list of source files. 04 to cross-compile a bare metal project that will run on ARM cortex-m7 microcontroller. Since you have two targets, LibraryA and LibraryB, we have to call it twice. As required by CMake, the items are separated by semicolons. It sounds simple but I can’t get it to work. 7) and adds the possibility to omit directories from the output when set to false. The <items> following the ITEMS keyword are processed as in the first variant of the foreach command. Commands add_compile_options() add_custom_command() add_custom_target() add_definitions() file(GLOB sub-dirs-of-dir-name ${dir-name}/*) should return only files within "${dir-name}" regardless of the current working directory. #include "foo. noulard at gmail. CMake's lists are semicolon-delimited. 3 on xubuntu 20. But I found this answer to be the most suitable nevertheless. The lists documentation says:. It causes one piece of text to be used repeatedly, each time with a different substitution performed on it. cmake' – Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company By the logic you just explained, set(FOO "${FOO} b") would add " b" to the existing last item (i. CMake Discourse list of available generator expression. cmake_host_system_information. Contribute to boostorg/foreach development by creating an account on GitHub. cpp dir1/file1. The original \; in your string() call encodes \; because the escape sequence documentation says:. You would need to quote the arguments separately: set(FOO "${FOO}" "b"). 31. Leonardo Leonardo. I have several . – Reasoning: If you give something like a file list to an CMake command it normally expect a list of strings and not one string containing a list. My CMake version is 3. CMAKE_PARENT_LIST_FILE¶. txt files in each of the subdirectories? In this variant, <lists> is a whitespace or semicolon separated list of list-valued variables. If the list is not defined it is created. bvoqwk xcend zjyo yqtoo xzyhzn zuccvaxm gjerr nxtn ktl brxkk