llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT--> @llvm/pr-subscribers-backend-x86 @llvm/pr-subscribers-clang Author: Yaxun (Sam) Liu (yxsamliu) <details> <summary>Changes</summary> One common error seen in CUDA/HIP compilation is: fatal error: 'cmath' file not found which is due to inproper installation of standard C++ libraries. Since it happens with #include_next, users may feel confusing which cmath is not found and how to fix it. Add an error directive to help users resolve this issue. --- Full diff: https://github.com/llvm/llvm-project/pull/122155.diff 1 Files Affected: - (modified) clang/lib/Headers/cuda_wrappers/cmath (+4) ``````````diff diff --git a/clang/lib/Headers/cuda_wrappers/cmath b/clang/lib/Headers/cuda_wrappers/cmath index 45f89beec9b4df..7deca678bf252e 100644 --- a/clang/lib/Headers/cuda_wrappers/cmath +++ b/clang/lib/Headers/cuda_wrappers/cmath @@ -24,7 +24,11 @@ #ifndef __CLANG_CUDA_WRAPPERS_CMATH #define __CLANG_CUDA_WRAPPERS_CMATH +#if __has_include_next(<cmath>) #include_next <cmath> +#else +#error "Could not find standard C++ header 'cmath'. Add -v to your compilation command to check the include paths being searched. You may need to install the appropriate standard C++ library package corresponding to the search path." +#endif #if defined(_LIBCPP_STD_VER) `````````` </details> https://github.com/llvm/llvm-project/pull/122155 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
