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

[Peter Korsgaard]

>>>>> "Alexis" == Alexis Lothoré via buildroot <buildroot at buildroot.org> writes:

 > 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 at bootlin.com>
 > ---
 > Changes in v2:
 > - fix upstream CMakeLists.txt rather than enabling C++ support in toolchain
 > - bring in the to-be-integrated-upstream corresponding patch
 > - Link to v1: https://lore.kernel.org/r/20260216-openscap_cpp-v1-1-3372149da5b0@bootlin.com

Committed, thanks.

-- 
Bye, Peter Korsgaard