Re: [Buildroot] [PATCH v2] package/openscap: add patch to enforce project as C project

Thomas Petazzoni via buildroot
2026-02-16T16:29:48Z

On Mon, Feb 16, 2026 at 05:13:05PM +0100, Alexis Lothoré wrote:
> When the toolchain involved in openscap build does not support C++, the
> configure step fails with the following error:
>
> -- 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)
>
> -- Configuring incomplete, errors occurred!
> make: *** [package/pkg-generic.mk:263: /home/autobuild/autobuild/instance-6/output-1/build/openscap-1.3.12/.stamp_configured] Error 1
> make: Leaving directory '/home/autobuild/autobuild/instance-6/buildroot'
>
> The openscap project does not contain any C++ file, and so does not need
> a C++ capable compiler. Bring the to-be-integrated-upstream patch
> enforcing C language in CMakeLists.txt to prevent this build failure.
>
> Fixes: https://autobuild.buildroot.org/results/1fe550ffa79f0a083a450ae03fe067a8ab7336be
> Fixes: https://autobuild.buildroot.org/results/e9d52b52658544916022050c78dcb137ca6c97e0
> Fixes: https://autobuild.buildroot.org/results/4a9c21763aaddb217ee5f8bb8947faad9767baa3
> Signed-off-by: Alexis Lothoré <alexis.lothore@bootlin.com>

Thanks for this new iteration!

Reviewed-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

Thomas
--
Thomas Petazzoni, co-owner and CEO, Bootlin
Embedded Linux and Kernel engineering and training