MaskRay wrote: > Hi @Endilll > > I did a git bisect that pointed to this change as the one blocking my > compilation on an Ubuntu docker image with clang 14.0 > > The error I see: > > ``` > CMake Error at > /test_radsan/llvm-project/compiler-rt/cmake/Modules/CheckSectionExists.cmake:72 > (message): > cc: error: unrecognized command-line option > '-Wcovered-switch-default'; did you mean > '-Wno-switch-default'? > > cc: error: unrecognized command-line option > '-Wstring-conversion'; did you mean > '-Wsign-conversion'? > > Call Stack (most recent call first): > /test_radsan/llvm-project/compiler-rt/lib/builtins/CMakeLists.txt:923 > (check_section_exists) > ``` > > My compiler info, printed from CMake: > > ``` > CMAKE_CXX_COMPILER_VERSION: 14.0.0 > CMAKE_CXX_COMPILER_ID: Clang > ``` > > More info from the command line: > > ``` > $ clang --version > Ubuntu clang version 14.0.0-1ubuntu1.1 > Target: aarch64-unknown-linux-gnu > Thread model: posix > InstalledDir: /usr/bin > $ uname -a > Linux 18728bf50582 6.5.11-linuxkit #1 SMP PREEMPT Mon Dec 4 11:30:00 UTC > 2023 aarch64 aarch64 aarch64 GNU/Linux > $ cmake --version > cmake version 3.22.1 > ``` > > Let me know what other information may be helpful, or if this is user error. > It seems from your godbolt links above, clang 5.0 and higher should work, so > I'm surprised that 14.0 is dying in this environment
`unrecognized command-line option` is from GCC. Your build environment might conflate GCC with Clang (`CMAKE_CXX_COMPILER_ID: Clang`). ``` % gcc -Wxxxxxxxxxxxxx -c a.c gcc: error: unrecognized command-line option ‘-Wxxxxxxxxxxxxx’ % clang -Wxxxxxxxxxxxxx -c a.c warning: unknown warning option '-Wxxxxxxxxxxxxx' [-Wunknown-warning-option] 1 warning generated. ``` https://github.com/llvm/llvm-project/pull/92953 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
