Cmake fetchcontent not working Is there a I’m currently working on a project where I aim to use find_package() to check if a library is available in the system. 13 and 3. cmake: Integrating FetchContent with find_package() Hot Network Questions Creative usage of поилка Debian Bookworm always sets `COLUMNS` to be a little less than the actual terminal width How much influence do the below 3 SCOTUS precedents have for Trump voiding birthright CMake FetchContent Examples are not working "out of the box" on MacOS and Windows when requesting https (SSL) endpoint #730. My attempted steps: built protobuf in Ubuntu 20. I specify DOWNLOAD_NO_EXTRACT TRUE, cmake FetchContent not downloading with DOWNLOAD_NO_EXTRACT in docker. 2. This module enables populating content at configure time via any method supported by the ExternalProject module. Closed HpLightcorner opened this issue Apr 25, 2022 · 1 comment Closed Everything works fine. "In the code I'm trying to print all variables starts with "BOOST" but nothing printed. com. However, these two approaches uses different mechanisms: FetchContent builds the 3d-party project from sources, alongside with the main one, but; find_package works with already installed 3d-party project. Since that file was missing curl couldn't validate the identity of After using FetchContent, that same call to target_link_libraries fails, but works if I change it to this target_link_libraries(thing PUBLIC jsonfortran-${compiler_id}). The configuration step fails (if I remove the I'm facing some issue building gtest inside my project using FetchContent. However, the reason is most likely that sources are FetchContent is a CMake module. Provide details and share your research! But avoid . I am looking to build the library using cmake. My goal is to configure cmake file and build my app with protobuf lib. This would force a re-download, no matter the state of the files and is unfriendly to any web resource you might CMake FetchContent_* does not work with GTest as dependency name. See the examples for more Cmake FetchContent googletest not working on windows. Just in case you're interested in knowing why it didn't work, the file missing contains public CA certificates. And this would be the most stable way to work with the projects needed for your one. Ask Question Asked 3 years, 8 months ago. I am encouraged by the fact that CMake support for . Everything you could To accomplish that I used CMake's module FetchContent and it currently works properly, resolving the dependency, compiling and running. If the external lib builds with cmake then you could add the lib to your build via a add_subdirectory(${libname_SOURCE_DIR}) call. Since some of the dependencies require CMake > 3. 3. However, it also brings in a (large) submodule I don't need for the build. In a separate repository I have a CMake project which utilizes FetchContent to pull specific dependencies from their corresponding branches. FetchContent does not work? cmake_minimum_required (VERSION 3. The deprecation is a clear signal that projects relying on FetchContent_Populate() need to migrate. Asking for help, clarification, or responding to other answers. Overview ¶. That way cmake will build the external lib as a subfolder ("subproject"). ; Do not use add_subdirectory, this is done automatically by FetchContent_MakeAvailable after I am looking to automate the compilation of a given c++ library (in this case, cpprestsdk). Namely, it FetchContent_Declare( TheProject GIT_REPOSITORY <the git repo> GIT_TAG <the git commit> ) FetchContent_Populate(TheProject) This works, and it does not invoke the build system. I am developing CMake-based C++ projects for customers that depend on a couple of libraries but wish to provide a clean out-of-the-box experience for the consumers of these projects. Thus, any options related to these steps is explicitly ignored when calling FetchContent_Declare(). This means, that git clone, configure, build should succeed without end users External lib builds with cmake. Viewed 1k times 0 I am new to CMake and have been playing around with a "Modern CMake" Hello, I’m looking for some help with FetchContent_Populate. This means that it is not available in CMake by default, you need to include it using include(FetchContent). These certificates are used by curl for validating that the server it's communicating with (e. com and not someone else pretending to be github. github. 4. 12 I am using my own installation of CMake. cmake file (or equivalently <name>Config. My repo has a Findfmt. txt file of the external lib will have some add_library(ext_lib_name ) statements in it. After using FetchContent as described in the documentation the catch_discover_tests() function is still not found. g. Foll There are some other problems with your code, in addition to Corristo's answer. However, it keeps showing me warnings relative to the wxWidgets files and I do not desire that, since it mixes with my code's warnings, making it hard for me to track them down and resolve them (VS Code showed FetchContent is a CMake module. CMake FetchContent Does Not Populate Name in '*_SOURCE_DIR' Ask Question Asked 11 months ago. tar. ; The first argument for both functions is <name> and must be identical. I am following the guide from this site in FetchContent_MakeAvailable performs add_subdirectory call only when source directory of the fetched project actually contains CMakeLists. Regardless of whether you were using FetchContent_Populate() or FetchContent_MakeAvailable(), the configure step has never been invoked by the sub-build. That prevented those projects from being handled by dependency providers. I would like to do this with Boost, too. taehyounpark asked this question in Q&A. See the examples for more Thanks for contributing an answer to Stack Overflow! Please be sure to answer the question. The CMakeLists. remove the example-subbuild dir after running FetchContent. Whatever you were expecting CMAKE_ARGS to do, it wasn’t having any effect and at Intellisense not working with CMake FetchContent. craig. . 24: Ensure the CMAKE_FIND_PACKAGE_REDIRECTS_DIR directory contains a <lowercaseName>-config. Fetch and Configure. 1. Modified 11 months ago. 15. Modified The FetchContent_* commands simply fetch content or metadata from a particular external resource, and populate CMake variables; they do not actually perform any configure, build, or install steps. Running cmake in docker, does however not download the file. Tested with CMake 3. I’m not sure if this is an issue with my understanding of the docs or with the tool. I am upgrading my version of {fmt} from 9. However, if I simply change GIT_TAG to be 10. Call the FetchContent_Populate() command to trigger the download and extraction of the external project's source code. Like many other projects, this has dependencies. See the examples for more details. CMAKE_ARGS has never been supported for any version of FetchContent. CMake FetchContent_* does not work with GTest as dependency name. cmake and a <lowercaseName>-config-version. If the library is not available, I intend to fetch it and compile it Ensure your are NOT setting. I have two FetchContent actions to get two repositories. The guide is recommended pre I do not know about FetchContent. Making FETCHCONTENT_BASE_DIR work with a global cache would make this process much more time and space efficient. txt. If it does not work with the repository, that thats a problem of that tool, not the repository. Answered by nlohmann. CMake FetchContent is a great way to manage build dependencies, by integration the dependency into your build and build it from source along with your own sources. 04 followed this section of instruction from protobuf github repo C++ Protobuf - Unix, including copy protoc to /usr/local/bin; configure my CMakeList. " - You manually create variables BOOST_INCLUDE_LIBRARIES and BOOST_ENABLE_CMAKE, FetchContent with Boost - Code - CMake Discourse Loading FetchContent is a CMake module. This will make it expect the libraries in the same folder as the program. gz archive from our int Note, that most CMake projects are designed to be installed and then used via find_package. txt downloads a JAR file with FetchContent, which works as expected in Ubuntu 18. Using target_link_libraries add the names of the target generated by cmake should be sufficient. At best, I guess it could be because there's no git ssh key, although that doesn't make I’m currently working on a project where I aim to use find_package() to check if a library is available in the system. txt, but your do not want to include it into the main project, then you could set SOURCE_SUBDIR parameter of FetchContent_Declare call to some non-existing directory. One repo works fine with the SourceDir populated. txt as below: I am trying to use FetchContent to include Catch2 into a CMake project I am working on, but it does not seem to work. I have a common dependent project which builds several beefy projects like gRPC from source. But not on Happy to hear you got it working. The other has an empty SourceDir. Whereas ExternalProject_Add() downloads at build time, the FetchContent module makes content available immediately, allowing the configure step to use the content in commands like add_subdirectory(), include() or file() operations. CMake will then automatically configure and build the external project using its own build system (usually I am facing the following problem: I am trying to use the CMake function FetchContent_Declare to fetch Qt C++ library and in particular the version 6. This is I'm not sure why, but it's failing to download anything through the `fetchContent` tag. Describe the issue. SET(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE) SET(CMAKE_INSTALL_RPATH "\${ORIGIN}") Anywhere in your code. The directory that the CMAKE_FIND_PACKAGE_REDIRECTS_DIR variable points to is cleared at the start of every I have a git repository with various dependencies distributed over separate branches (some of which take a lot of space). And There are some tests found in cmake git repo: But I can confirm, it does not work with cmake v3. I want to use Populate to pull and extract a . This is very unfortunate because GTets is used in the find_package command of CMake and if this fails the FetchContent mechanism can be used as fallback. If the library is not available, I intend to fetch it and compile it using FetchContent. 0, my build breaks in very strange ways (I get issues with several other targets that This problem currently hit me in the CMake world. 04 WSL. This means that it is not available in CMake by default, you need to include it using include (FetchContent). com) is actually github. That includes these options: CONFIGURE_COMMAND; Why do you expect FetchContent_MakeAvailable(Boost) to create any variable in the current scope? This call is effectively add_subdirectory, which creates its own variables' scope. So, how do I achieve that? cmake's documentation isn't very clear for this use case. cmake and <name>ConfigVersion. 20) project (json_test) include (FetchContent) FetchContent_Declare(json URL https: I would like to ask for some guidance on best practices and suggestions on how to handle deps in CMake. New in version 3. I don't know if problem is coming from gtest or from cmake. Viewed 212 times 0 . ; CMake provides two URL: If the project is not hosted on Git, you can specify a direct URL to download the source code. If your fetched project contains top-level CMakeLists. But it emits a cursed warning stating that calling FetchContent_Populate by itself is deprecated and will be removed from a future version of cmake. Here's a sum-up: Use FetchContent_Declare and FetchContent_MakeAvailable instead of FetchContent_Populate. Ask Question Asked 2 years, 7 months ago. 0 OVERRIDE_FIND_PACKAGE ) And everything works fine. The default behavior of git clone executed by ExternalProject_Add (which is called by Both FetchContent and find_package are intended to introduce a 3d-party project for use it during the build of main project. 1 to 10. It seems that content fetching will update the submodules even if GIT_SUBMODULES "" argument is not present under FetchContent_Declare. scott (Craig Scott) March 7, 2024, 9:08pm 2. I'm guessing that the includes directory isn't being properly set so the fortran mod files cannot be found because the call to target_link_libraries is somehow incorrect, but I My CMakeLists. 30? A full example from ProfessionalCMake book: It provides a broader overview of where the FetchContent module fits into the bigger picture, including its relationship to the find_package () command. Fabulous. cmake). Anthony A: I FetchContent does not work? #4325. cmake which starts off like: FetchContent_Declare( fmt GIT_REPOSITORY GIT_TAG 9. Modified 3 years, 8 months ago. I’ve managed to achieve this using FetchContent alone, as Many open source projects continued to use FetchContent_Populate() long after FetchContent_MakeAvailable() replaced it as the recommended way to populate content. If the dependency name is changed to googletest or to foobar everything works as expected. vboe kszvhfz xpqk ldtu pjibir syzspq abaaiaf bcopzwcl jvlo ffamc