CMAKE QUESTIONS

How to structure a cmake project with different 3rd-party libraries

This might help you After further investigation and a lot of try and error with CMake, I guess I started with wrong expectations and some missunderstandings.It is not possible to get a useful solution/project structure for Visual Studio from CMake fi

TAG : cmake

Date : January 12 2021, 07:00 PM , By : Antony Briggs

cmake configure_file does not expand mylib.pc.in correctly

help you fix your problem Construction ${prefix} is a variable reference both in CMake scripting and in .pc file scripting. So you need to choose at which stage you want to expand this reference:

TAG : cmake

Date : January 11 2021, 05:14 PM , By : Marianisho

CMake: Fortran modules and compilation order

This might help you Here problem is that lib1 target required object file for mod.f90. But there is no rule mention in CMakeLists.txt to create mod.f90.o while creating liblib1.a. For lib2 target mod.f90.o is created.There can be two possible solutio

TAG : cmake

Date : January 02 2021, 06:48 AM , By : user150744

CMake force install after add_subdirectory

fixed the issue. Will look into that further This looks like the primary use case for ExternalProject_Add, which is best used as a superbuild setup. This means that your top-level project (the "superbuild") does not build any actual code and instead

TAG : cmake

Date : January 02 2021, 06:48 AM , By : Philofax

CMake file(GLOB_RECURSE) to find one file per directory?

this will help The list returned by file (GLOB_RECURSE ... is a superset of the desired result. Thus one possible solution is to post process the returned list by only selecting the first match returned for each directory.The following CMake function

TAG : cmake

Date : January 02 2021, 06:48 AM , By : Lunis Neko

How to pass C/CXX flags to an external project in CMake

wish help you to fix your issue I am still open to other answers, but for now I have settled on creating an uppercase version of the build_type, and using that to extract the build_type specific flags.

TAG : cmake

Date : January 02 2021, 06:48 AM , By : Doug

Cmake suddenly can't find my source files anymore

it fixes the issue To make a long story short: , This line:

TAG : cmake

Date : January 02 2021, 06:48 AM , By : Michael T.

How are variables like GTEST_FOUND set?

wish of those help The GTEST_FOUND variable is actually set in the FindPackageHandleStandardArgs.cmake file. You can see in FindGTest.cmake, a call to this function is made here:

TAG : cmake

Date : January 02 2021, 06:36 AM , By : S Hall

What is the default privacy/scope setting for include_directories?

I wish did fix the issue. Is using include_directories() essentially the same as using target_include_directories(MyTarget PRIVATE ...)?

TAG : cmake

Date : January 01 2021, 05:02 PM , By : Techspirit

Why -fPIC must be provided as definition, rather than compiler flag

I think the issue was by ths following , The line add_definitions(-fPIC) is wrong. First, it should be add_compile_options. Then, add_definition is a directory command which you should avoid.CMake must detect that the macro name starts with -f and ad

TAG : cmake

Date : December 30 2020, 04:08 PM , By : user186435

How to append command to add_custom_target in CMake

seems to work fine You can use add_custom_command and use it as dependency to your target. With the custom command you can APPEND commands with same OUTPUT:

TAG : cmake

Date : December 27 2020, 04:20 PM , By : Kaputnik

How to have an intermediate compile statement when generating a static library using cmake

help you fix your problem I could not find a way to be able to do the conversion as part of the compilation. So, I used add_custom_command with a POST_LINK on the archive itself. Then I process each entry in the archive, doing the required conversion

TAG : cmake

Date : December 27 2020, 03:39 PM , By : Laques

Custom command does not get executed with --target option in cmake

hop of those help? Sorry for the later answer but work was crazy. So after i read the comments by @Th.Thielemann and @squareskittles I reread the cmake documentation and found my solution. The following code was written under cmake/3.0.0 quite a whil

TAG : cmake

Date : December 27 2020, 03:09 PM , By : ganok_tor

cmake and portable nul / /dev/null device

To fix this issue If you are running a shell command using execute_process() and want to quite the output. you can use the OUTPUT_QUIET and/or ERROR_QUIET options.From the execute_process documentation:

TAG : cmake

Date : December 26 2020, 01:01 AM , By : user183526

VSCode tasks dependsOn being run, task itself not

Does that help It apparently had something to do with the sh -c at the top of my task. I also changed the args to command in the tasks. My resulting tasks.json file:

TAG : cmake

Date : December 25 2020, 05:31 PM , By : Cosmin

How can I write the CMakeLists.txt to add .mlmodel to xcode project

help you fix your problem You will probably need to add a custom rule that calls coremlc to generate the .h abd .m files and the .mlmodelc folder.This is how you'd do it from Terminal:

TAG : cmake

Date : December 25 2020, 04:30 PM , By : Pavel K.

Calling a CMake function: number of arguments

hope this fix your issue 3 variables will be the first 3 arguments.If your function was defined as follows:

TAG : cmake

Date : December 25 2020, 09:27 AM , By : Sonal

CMake with gRPC cannot find gRPCTargets.cmake

it should still fix some issue The cause of this problem is explained at https://github.com/grpc/grpc/issues/13841:

TAG : cmake

Date : December 25 2020, 09:19 AM , By : Imran

From makefile to Cmake - stm32

I hope this helps you . Got it to work, thanks to Chris for the guidance. The issue was the ASM was not build and I had to link arm object copy.CMakeLists.txt:

TAG : cmake

Date : December 22 2020, 05:01 AM , By : BooTeK

CMake Error buildir" does not appear to contain CMakeLists.txt

I hope this helps . You need to run cmake in the build directory with an argument of the source directory.Example:

TAG : cmake

Date : December 21 2020, 08:30 PM , By : Jonathan

Use -I instead of -isystem when using CMake find_package in compile_commands.json

With these it helps There is the target property NO_SYSTEM_FROM_IMPORTED you can set on the consuming target to remove that behavior.

TAG : cmake

Date : December 21 2020, 11:02 AM , By : joshski

CMake build with LLVM Project as a subdirectory

wish helps you What does the error from CMake really mean? @Tsyvarev correctly identified that the problem was in fact that llvm-project/llvm/include/llvm/module.modulemap.build didn't exist. This was because I downloaded an archive of the project th

TAG : cmake

Date : December 05 2020, 06:54 AM , By : Kiltec

Build2 analog of CMake's find_package

may help you . Is there are any mechanism in Build2 like CMake's find_package? , To use foo as dependency in your bar project, you need to add a line:

TAG : cmake

Date : December 02 2020, 10:46 PM , By : user185751

Adding compiler "#define" flags in sub_directory CMakeLists.txt

it helps some times My directory structure of project is build with multi CMakeLists.txts. , Your CMSIS_lib/CMakeList.txt should look like this:

TAG : cmake

Date : November 29 2020, 04:01 AM , By : Cosmin

How locate .cpp Files in a "src directory" using CMake?

Any of those help If you want to locate all .cpp files in the src directory, you could do

TAG : cmake

Date : November 28 2020, 08:01 AM , By : codelurker

Include shared object in CMake

I wish this help you I have a shared object called my-shared.so , In your CMakeLists.txt import library by:

TAG : cmake

Date : November 26 2020, 04:01 AM , By : John Phipps

cmake3 external project add step loop

should help you out In CMake functions calls and other constructions cannot be nested one into another. So, using foreach() command inside ExternalProject_Add_Step parameters is wrong.But you may use foreach() for generate arguments for ExternalProje

TAG : cmake

Date : November 24 2020, 05:44 AM , By : Tony Z

selectively run doxygen in cmake

will be helpful for those in need I've got a CMakeLists.txt file that handles Doxygen generation for a software project. Its contents are: , First remove the ALL from add_custom_target().

TAG : cmake

Date : November 24 2020, 04:01 AM , By : drbillll

How can I inspect cmake internal variables?

will be helpful for those in need You need to write this variable to cache, example:

TAG : cmake

Date : November 19 2020, 12:01 PM , By : Robert MacGregor

Compiling multiple packages in same folder in ROS

this will help Placing multiple packages inside a workspace is possible and a fundamental approach in ROS.The error

TAG : cmake

Date : November 17 2020, 04:01 AM , By : dantino

Wrap cache variables of a library when configuring my code in CMake

I hope this helps . The key word is INTERNAL property of the variable. Take a look at this example:Test/CMakeLists.txt:

TAG : cmake

Date : November 17 2020, 01:00 AM , By : Stephen Dewar

SFML Compilation with CMake. sh.exe not in my PATH

should help you out It's an (odd) limitation of CMake.If you use MSYS with MinGW, you'll have an sh.exe in your bin/ directory which is added to PATH, thus you need to choose the MSYS Makefiles generator.

TAG : cmake

Date : November 14 2020, 04:48 PM , By : Icyflash

How to link to <math.h> library using CMake?

will be helpful for those in need I included library in my source code. But I get compilation errors. , I found answer. Cmakelists.txt file is like it:

TAG : cmake

Date : November 12 2020, 11:01 PM , By : meehan

Building Boost as an ExternalProject_Add and either FindBoost or export the results

this one helps. The ExternalProject_Add creates a target that will drive pulling an external project. This means that downloading, building and installing of an external project happens during a build step. As a consequence external project's propert

TAG : cmake

Date : November 10 2020, 03:01 PM , By : user93312

Should I cache CMAKE_BUILD_TYPE?

Any of those help CMAKE_BUILD_TYPE in CMake's Cache The user would normally define CMAKE_BUILD_TYPE via the command line with cmake -D .... So this does generate a cached entry.

TAG : cmake

Date : November 06 2020, 03:01 PM , By : Mario Tristan

What does CMAKE_BUILD_TYPE affect, other than the compiler flag selection?

I hope this helps you . I know that if if we set -DCMAKE_BUILD_TYPE=Release (or Debug etc.), then the values of CMAKE_C_FLAGS_RELEASE and CMAKE_CXX_FLAGS_RELEASE will be appended to CMAKE_C_FLAGS and CMAKE_C_FLAGS respectively. , Actually, build type

TAG : cmake

Date : November 06 2020, 03:01 PM , By : jgood

Why does CMake EXPORT require static libraries used to build a shared library?

Hope this helps When using target_link_libraries like you did, library dependencies are transitive by default. Try:

TAG : cmake

Date : November 03 2020, 11:01 PM , By : Simone

CMake/Ninja: Recursive "cleaning" of output directories when contents are unknown...?

To fix the issue you can do Colleagues! , The way that I solved this was to define a NEW target "Clean":

TAG : cmake

Date : November 03 2020, 04:01 AM , By : Ben Humphrys

How to build eclipse paho with cmake

hope this fix your issue im very new to cmake. I want to add eclipse paho to my project, therefor I use "ExternalProject_add". Here is an extract of my CMakeLists.txt: , you can use the GIT repository, it has a CMakeList.txt.

TAG : cmake

Date : October 31 2020, 09:54 AM , By : James Lupiani

How can I generate a GUID in CMake?

will be helpful for those in need There are several ways to create unique identifiers in CMake (see string() Generation). E.g. string(TIMESTAMP ...), string(RANDOM ...) or string(UUID ...):

TAG : cmake

Date : October 29 2020, 04:55 AM , By : yossi

cmake: install header order and dependencies on target

hope this fix your issue Install is the final step, the one that should be visible to the user. So when you export binaries and headers you should already have binaries built against headers in their original locations. From CMake point of view you h

TAG : cmake

Date : October 28 2020, 11:27 AM , By : Kyle

CMake, multiple targets (asan tsan..) without having to recompile everything

I hope this helps you . Yes, but use multiple build directories: Create a build directory per configuration. Configure your project in your build directories with the parameters you need. E.g. cmake -DCMAKE_COMPILER=clang -DCMAKE_C_FLAGS="-fsanitize=

TAG : cmake

Date : October 28 2020, 11:27 AM , By : user122937

Using cmake options in generator expressions

it fixes the issue Your example doesn't really specify a use case for this, and I think there are other ways of going about it (as well as -lblas being a linker flag not a compile option.) Just off of the information you provide, it looks like what y

TAG : cmake

Date : October 22 2020, 03:08 PM , By : DarrenBeck

Licensing: What is the license for LibFindMacros.cmake

around this issue It was originally written by me, and you may consider it Public Domain.

TAG : cmake

Date : October 16 2020, 11:12 PM , By : Mario Tristan

CMake - How does the if() command treat a symbol? As string or as variable?

should help you out Welcome to the wilderness of CMake symbol interpretation.If the symbol exists as a variable, then the expression is evaluated with the value of the variable. Otherwise, the name of the variable (or literal, as you said) is evaluat

TAG : cmake

Date : October 08 2020, 06:00 PM , By : walshtp

Automatically add linking options to dependants of shared lib

wish help you to fix your issue Let's say I have a shared lib, A, and something else that links against it, B. They are in two separate projects. , This is a simple solution you can try:

TAG : cmake

Date : October 08 2020, 09:00 AM , By : Webtoad

CMake Error: include could not find load file: targets

will be helpful for those in need If you pay close attention to the error, you'd notice the full error says something like:

TAG : cmake

Date : October 07 2020, 08:00 AM , By : boonchew

How to get cmake generate -std=c++14 flag for qcc compiler

Any of those help I'm trying to cross compile some c++ library for QNX neutrino using cmake. In CMakeLists.txt file I specified CMAKE_CXX_STANDARD 14 required, but the resulting compiler command line does not contain the -std=c++14 option. , Use

TAG : cmake

Date : October 04 2020, 06:00 PM , By : Maplye

Check for compatibility

Hope that helps EDIT: The correct use of check_c_source_compiles() requires inserting the actual C code inline within your CMake file. In addition, because your code contains quotes, you must escape the quotes with backslashes (\"). See my example be

TAG : cmake

Date : October 02 2020, 01:00 AM , By : codelurker

Return in CMake macro ends upper CMake file execution?

I hope this helps you . From the documentation for return:

TAG : cmake

Date : October 01 2020, 05:00 PM , By : user183676

CMake find_dependency does not respect the behaviour in the package documentation?

I wish this helpful for you Are we misunderstanding the documentation linked above, or is this a bug in CMake behavior?

TAG : cmake

Date : September 30 2020, 08:00 PM , By : user161380

How to pass combined compiler options with target_compile_options in CMake?

hope this fix your issue https://cmake.org/cmake/help/v3.12/command/target_compile_options.html:

TAG : cmake

Date : September 29 2020, 06:00 PM , By : Tonci Grgin

What is the use case for generator expression on target_include_directories?

Hope this helps Generator-like expressions $ and $ are used by CMake for distinguishing things, different for the build tree and for the install tree.When building the project itself, $ is used but $ is not.

TAG : cmake

Date : September 27 2020, 06:00 PM , By : Jay Crockett

CONAN_PKG::<PKG-NAME> not found when using cmake to generate build target

hop of those help? You are looking for the TARGETS approach. You need to pass TARGETS to conan_basic_setup() to generate CONAN_PKG::. Otherwise, only ${CONAN_LIBS} will be available.

TAG : cmake

Date : September 27 2020, 04:00 PM , By : fayoh

CMake Custom Command Depending On Variable

To fix the issue you can do Using configure_file one may convert "dependency from the variable" to "dependency from the file" which is naturally handled by custom target/command:options_list_file.in:

TAG : cmake

Date : September 27 2020, 01:00 PM , By : evegter

Difference between FooTarget.cmake and FindFoo.cmake?

seems to work fine Discovering a package by using find_package(Foo) consists in two steps:

TAG : cmake

Date : September 26 2020, 09:00 PM , By : Jouni

What's the difference between find_package(MPI) and FindMPI?

To fix this issue Because FindMPI is one of the Find Modules provided by the CMake installation, the find_package(MPI) and include(FindMPI) calls are essentially equivalent. (The include() is required here to load the module; simply writing FindMPI i

TAG : cmake

Date : September 15 2020, 12:00 AM , By : Frank Bradley