Cmake Download From Github
Selene Bulger
this feels simple but it's taking me longer than i would like. I'm trying to incorporate the SPLINTER library into my cmake project, whose github repository is here: However, after cloning the github repository onto my computer I'm not sure how to get CMake to recognize and find splinter using the find_package command in CMakeLists.txt. Could anybody help out?
The above configuration declares a dependency on GoogleTest which is downloadedfrom GitHub. In the above example, 03597a01ee50ed33e9dfd640b249b4be3799d395 isthe Git commit hash of the GoogleTest version to use; we recommend updating thehash often to point to the latest version.
For self-hosted runners, you will likely need to install the gcc compiler, and specific projects may also require access to clang or mscv executables. You will also need to install the build system (for example msbuild, make, cmake, bazel) and utilities (such as python, perl, lex, and yacc) that your projects depend on.
If autobuild fails, or you want to analyze a different set of source files from those built by the autobuild process, you'll need to remove the autobuild step from the workflow, and manually add build steps. For C/C++, C#, Go, Kotlin, Java, and Swift projects, CodeQL will analyze whatever source code is built by your specified build steps. For information on how to edit the workflow file, see "Customizing your advanced setup for code scanning."
We can write the git commit hash using the file(WRITE) command and then we can file(STRINGS) command to read the content of the file back into CMake. This method of saving the state between between runs of the CMake command comes from the CMake-git-version-tracking repository.
People love to hate build systems.Just watch the talks from CppCon17 to see examples of developers making the state of build systems the brunt of jokes.This raises the question: Why?Certainly there are no shortage of problems when building.But I think that, in 2023, we have a very good solution to quite a few of those problems.It's CMake. Not CMake 2.8 though; that was released before C++11 even existed!Nor the horrible examples out there for CMake (even those posted on KitWare's own tutorials list).I'm talking about Modern CMake. CMake 3.5+, maybe even CMake 3.27+!It's clean, powerful, and elegant, so you can spend most of your time coding, not adding lines to an unreadable, unmaintainable Make (Or CMake 2) file.And CMake 3.11+ is supposed to be significantly faster, as well!
Alternatively, you can use cmake --build . --target dist, which will create a tarball that you can also unpack on other compatible machines, although you will need to tweak the installation by removing the root/ prefix and unpacking to the right place as well.
Historical versions of F shipped with a bespoke make system ensure that building is done correctly and in the correctorder. However, using and maintaining this build system presents a steep learning curve to newusers of F. The new CMake system is intended as a replacement for the old make-basedbuild system that should be easier to learn and use. In addition, the use of cmake puts Fmore in line with standard C++ development.
Similarly to the NDK build system android-cmake allows to select between several compiler toolchains and target platforms. Most of the options can be set either as cmake arguments: -D= or as environment variables:
ANDROID_ABI - specifies the target Application Binary Interface (ABI). This option nearly matches to the APP_ABI variable used by ndk-build tool from Android NDK. If not specified then set to armeabi-v7a. Possible target names are:
ANDROID_TOOLCHAIN_NAME - the name of compiler toolchain to be used. This option allows to select between different GCC and Clang versions. The list of possible values depends on the NDK version and will be printed by toolchain file if an invalid value is set. By default android-cmake selects the most recent version of GCC which can build for specified ANDROID_ABI.
When crosscompiling CMake find_* commands are normally expected to find libraries and packages belonging to the same build target. So android-cmake configures CMake to search in Android-specific paths only and ignore your host system locations. So
However sometimes you need to locate a host package even when cross-compiling. For example you can be searching for your documentation generator. The android-cmake recommends you to use find_host_package and find_host_program macro defined in the android.toolchain.cmake:
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