[flang-commits] [flang] [flang]Add new intrinsic function backtrace and complete the TODO of abort (PR #117603)

[Tom Eccles via flang-commits]

tblah wrote:

I reverted due to the failed buildbot. The buildbot failed because the LLVM configuration header was missing.

The buildbot had a separate step for building the runtime so I wonder if it built only that and nothing in `llvm/`. So the problem could be a missing cmake dependency from the runtime to whatever in `llvm/` generates that header. 

It looks like there is already a `$BUILD_DIR/flang/runtime/config.h` generated from `$SOURCE_DIR/flang/runtime/config.h.cmake`. I think you will need to add the right line to that cmake file so that this variable is set, then include the flang runtime version of `config.h`. You can find the line you need in `llvm/include/llvm/Config/config.h.cmake`.

Thanks for all of your work so far :) don't hesitate to reach out if you have any questions.

https://github.com/llvm/llvm-project/pull/117603