[flang-commits] [flang] Backtrace support for flang (PR #118179)

[Tom Eccles via flang-commits]

tblah wrote:

Hi @brad0, thanks for looking into this.

I don't have a BSD machine to test but I would guess something like the following would work in `flang/runtime/CMakeLists.txt`

```
set(linked_libraries
  FortranDecimal
)
if(CMAKE_SYSTEM_NAME MATCHES ".+BSD")
  list(APPEND linked_libraries "libexecinfo")
endif

# For each usage of add_flang_library use the new list instead of just FortranDecimal:
add_flang_library(FortranRuntime
  ${sources}
  LINK_LIBS
  ${link_libraries}
)
```

You can find CMake's documentation here (e.g. for `list(APPEND )`) https://cmake.org/cmake/help/latest/command/list.html#append

https://github.com/llvm/llvm-project/pull/118179