mstorsjo wrote: This change broke cross-compiling lldb-mi (for a mingw target, if that's relevant) with a cross-compiled LLVM: https://github.com/mstorsjo/llvm-mingw/actions/runs/28989600787/job/86046599844
(In this build configuration, I'm building LLVM but not installing all the libraries, I'm installing with `-DLLVM_INSTALL_TOOLCHAIN_ONLY=ON`. Then I configure lldb-mi by pointing it at the build directory from the previous LLVM build.) At the end of the failing build, lldb-mi fails to link, erroring out with ``` lld: error: unable to find library -lLLVMSupport ``` The linking command in this case passes just a plain `-lLLVMSupport` argument, which can't be found. In earlier builds that did succeed, the lldb-mi linking command includes `/home/martin/code/llvm-mingw/llvm-project/llvm/build-x86_64-w64-mingw32/lib/liblldb.dll.a /home/martin/code/llvm-mingw/llvm-project/llvm/build-x86_64-w64-mingw32/lib/libLLVMSupport.a`. With a local modification like this on top, my build succeeds again: ```diff diff --git a/llvm/cmake/modules/LLVMConfig.cmake.in b/llvm/cmake/modules/LLVMConfig.cmake.in index 6ef0cef7d029..8eaf659d82c0 100644 --- a/llvm/cmake/modules/LLVMConfig.cmake.in +++ b/llvm/cmake/modules/LLVMConfig.cmake.in @@ -147,7 +147,7 @@ set(LLVM_ENABLE_SHARED_LIBS @BUILD_SHARED_LIBS@) set(LLVM_DEFAULT_EXTERNAL_LIT "@LLVM_CONFIG_DEFAULT_EXTERNAL_LIT@") set(LLVM_LIT_ARGS "@LLVM_LIT_ARGS@") -if(NOT TARGET LLVMSupport AND NOT CMAKE_CROSSCOMPILING) +if(NOT TARGET LLVMSupport) @LLVM_CONFIG_INCLUDE_EXPORTS@ @llvm_config_include_buildtree_only_exports@ endif() ``` https://github.com/llvm/llvm-project/pull/205522 _______________________________________________ cfe-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
