Set project as C project in CMakeLists.txt - #2401
Merged
Merged
Conversation
The openscap tool has been recently integrated in the buildroot build
system ([1]), which makes the openscap tool buildable for a wide variety
or architectures/OSes, with a wide variety of _compilers_. And so when
such compilers are not supporting C++ projects (as it is the case with a
default buildroot toolchain), the build breaks on the following error
(see [2] for an example):
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - failed
-- Check for working CXX compiler: /bin/false
-- Check for working CXX compiler: /bin/false - broken
CMake Error at /usr/share/cmake/Modules/CMakeTestCXXCompiler.cmake:73 (message):
The C++ compiler
"/bin/false"
is not able to compile a simple test program.
It fails with the following output:
Change Dir: '/home/autobuild/autobuild/instance-6/output-1/build/openscap-1.3.12/buildroot-build/CMakeFiles/CMakeScratch/TryCompile-tUydqI'
Run Build Command(s): /usr/bin/cmake -E env VERBOSE=1 /usr/bin/make -f Makefile cmTC_1834b/fast
make[1]: Entering directory '/home/autobuild/autobuild/instance-6/output-1/build/openscap-1.3.12/buildroot-build/CMakeFiles/CMakeScratch/TryCompile-tUydqI'
/usr/bin/make -f CMakeFiles/cmTC_1834b.dir/build.make CMakeFiles/cmTC_1834b.dir/build
make[2]: Entering directory '/home/autobuild/autobuild/instance-6/output-1/build/openscap-1.3.12/buildroot-build/CMakeFiles/CMakeScratch/TryCompile-tUydqI'
Building CXX object CMakeFiles/cmTC_1834b.dir/testCXXCompiler.cxx.o
/bin/false -o CMakeFiles/cmTC_1834b.dir/testCXXCompiler.cxx.o -c /home/autobuild/autobuild/instance-6/output-1/build/openscap-1.3.12/buildroot-build/CMakeFiles/CMakeScratch/TryCompile-tUydqI/testCXXCompiler.cxx
make[2]: *** [CMakeFiles/cmTC_1834b.dir/build.make:81: CMakeFiles/cmTC_1834b.dir/testCXXCompiler.cxx.o] Error 1
make[2]: Leaving directory '/home/autobuild/autobuild/instance-6/output-1/build/openscap-1.3.12/buildroot-build/CMakeFiles/CMakeScratch/TryCompile-tUydqI'
make[1]: *** [Makefile:134: cmTC_1834b/fast] Error 2
make[1]: Leaving directory '/home/autobuild/autobuild/instance-6/output-1/build/openscap-1.3.12/buildroot-build/CMakeFiles/CMakeScratch/TryCompile-tUydqI'
CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
CMakeLists.txt:11 (project)
openscap does not have any C++ code to build, so restricting builds to
toolchains supporting C++ is overconstraining, the configuration step
should rather not try to check C++ support.
Enforce the project as a C project in CMakeLists.txt to make sure not to
test C++ features on the used toolchain.
[1] https://buildroot.org/
[2] https://autobuild.buildroot.org/results/1fe550ffa79f0a083a450ae03fe067a8ab7336be/build-end.log
Signed-off-by: Alexis Lothoré <alexis.lothore@bootlin.com>
|
Mab879
approved these changes
Aug 13, 2026
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Hello,
this small PR just aims to backport to the maint-1.3 branch the fix that has been merged a few months ago to enforce the project as C project (and so, to get rid of a configuration failure when using a non-C++ toolchain), hoping to see this fix eventually released in a 1.3.X version
EDIT: to clarify, I have checked-out the maint-1.3 branch, created a new branch from it, and cherry-picked bbfb2d7 from the main branch