- Cmake Objective C Download
- Cmake Change Object File Extension
- Cmake Objective C Framework
- Cmake 3.16
- Cmake Objective C Arc
- Cmake Clean Object Files
You can open, create and add Objective-C/C files with.m and.mm extensions into your CMake or compilation database project, and use all of the features for code inspection, assistance and refactoring that CLion provides. Live and code templates are also available for Objective-C/C code. May 28, 2020 Objective C/C: Honor CC and CXX env vars to select compiler Help: Add 3.17.3 release note for Objective C/C compiler selection cmGeneratorTarget: Clear AllConfigSources in ClearSourcesCache.
What This Guide Covers #
Cmake Objective C Download
For Language versions and other build-environment specificinformation visit our reference pages:
This guide covers build environment and configuration topics specific to Cprojects. Please make sure to read our Tutorialand general build configuration guides first.
CI environment for C Projects #
Travis CI VMs are 64-bit and provide versions of:
- core GNU build toolchain (autotools, make), cmake, scons
C projects on Travis CI assume you use Autotools and Make by default.
Cmake Change Object File Extension
For precise versions on the VM, please consult “Build system information” in the build log.
Dependency Management #
Because there is no dominant convention in the community about dependencymanagement, Travis CI skips dependency installation for C projects.
If you need to install dependencies before your tests can run, override the
install: key in your
See the build configuration guide to learn more.
Choosing compilers to test against #
You can test projects against either GCC or Clang, or both. To do so, specifythe compiler to use using the
compiler: key in
.travis.yml. For example, tobuild with Clang:
or both GCC and Clang:
Testing against two compilers will create (at least) 2 rows in your buildmatrix. For each row, Travis CI C builder will export the
CC_FOR_BUILD env variables topoint to either
gcc is an alias for
clang. Set a specific GCC version to use GCC on macOS.
OpenMP projects #
OpenMP projects should set the environment variable
OMP_NUM_THREADS to areasonably small value (say, 4). OpenMP detects the cores on the hostinghardware, rather than the VM on which your tests run.
MPI projects #
Cmake Objective C Framework
The default environment variable
$CC is known to interfere with MPI projects.In this case, we recommend unsetting it:
C11/C++11 (and Beyond) and Toolchain Versioning #
If your project requires tools compatible with C11, C++11, or a more recent language standard, then it is likely that you will have to upgrade your compiler and/or build tools. This section covers specifically how to upgrade GCC, clang, and cmake; for other dependencies please see Installing Dependencies.
GCC on Linux #
- Precise ships with GCC 4.6.3
- Trusty ships with GCC 4.8.2
- Xenial ships with GCC 5.4.0
- Bionic ships with GCC 7.4.0
Note that GCC support for ISO C11 reached a similar level of completeness as ISO C99 in 4.9 and that C++11 is feature-complete in 5.1 (the C++ language support was feature-complete in 4.8.1 but the standard library didn’t support all C++11 features until later, in particular support for
<regex> does not exist until 4.9).
To upgrade GCC to a more recent version, you will have to install the appropriate version from the
ubuntu-toolchain-r-test source; see below for examples:
GCC on macOS #
gcc is an alias for
g++ is an alias for
clang++.So you must set CC and CXX to specific
Clang on Linux #
- Precise ships with Clang 3.4
- Trusty ships with Clang 3.5.0
- Xenial ships with Clang 7
- Bionic ships with Clang 7
Note that C++11 support is complete starting from Clang 3.3.
To upgrade Clang to a more recent version, you will have to install the appropriate version from a
llvm-toolchain-* source (the
ubuntu-toolchain-r-test source must also be pulled in for dependency resolution); see below for examples:
Clang on macOS #
On macOS, the version of
clang is controlled by the choice of
osx_image.You can find here the list of available
You can find the
clang version shipped by Xcode here.
- Precise ships with CMake 2.8.7
- Trusty ships with CMake 3.9.2
- Xenial ships with CMake 3.12.4
- Bionic ships with CMake 3.12.4
Cmake Objective C Arc
You can upgrade cmake to 3.2.3 on Precise from the
george-edison55-precise-backports source (note that the
cmake-data package contains dependencies which Aptitude does not automatically resolve), c.f.
On macOS, the version of
cmake is controlled by the choice of
Build Config Reference #
Cmake Clean Object Files
You can find more information on the build config format for C in our Travis CI Build Config Reference.