================ @@ -15,6 +15,7 @@ # used for building this FortranFloat128Math library. include(CheckLibraryExists) +include(CheckIncludeFile) ---------------- Meinersbur wrote:
1. In bootstrap builds, using just-built Clang/Flang as compiler (`CMAKE_*_COMPILER`) is hardcoded (that's where the name bootstrap comes from). You want a runtimes-only build here. Runtimes like offload could not even work with gcc since those generate LLVM-bc files for link-time compilation. To unify offloading accross runtimes, I think @jhuber6 would like to do something similar for Flang-RT. 2. Using `-DLLVM_ENABLE_RUNTIMES_PASSTHROUGH=ON` you can specify additional CMake variables that should be forwared to the runtimes build configuration. Specifying `CMAKE_CXX_FLAGS` here should be possible. Also, there is a [mechanism](https://github.com/llvm/llvm-project/blob/main/llvm/runtimes/CMakeLists.txt#L369-L393) to forward variables prefixed with `RUNTIMES_` or listed in `FLANG_RT_extra_args`, but I have never used it. 3. Not that I know of, but in my experience getting the configurations to match can easily go wrong. I assume that you are going to try to point Clang to the location of gcc's `quadmath.h` and `libquadmath.a`? Clang autodetect a gcc installation and usually is able to reuse its files. Don't now why this doesn't happen for quadmath. Note that relying on compiler and runtime having the same value of `FLANG_RUNTIME_F128_MATH_LIB` is something we should get away from, especially for cross-compilation. There is no guarantee that the target platform has libquadmath support only because the host platform has. https://github.com/llvm/llvm-project/pull/110217 _______________________________________________ llvm-branch-commits mailing list llvm-branch-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
