[flang-commits] [flang] [flang] Simplify LIBTYPE logic (PR #98072)

[Michael Kruse via flang-commits]

Meinersbur wrote:

To elaborate on the idea of making forwarding of flags easier:
```cmake
function(bool_argument_as_forwardable_flag prefix flag)
  if ("${${prefix}_${flag}}")
    set("${prefix}_${flag}" "${flag}" PARENT_SCOPE)
  else()
    set("${prefix}_${flag}" "" PARENT_SCOPE)
  endif()
endfunction()

bool_argument_as_forwardable_flag(ARG STATIC)
bool_argument_as_forwardable_flag(ARG SHARED)
llvm_add_library(${name} ${ARG_STATIC} ${ARG_SHARED} [...])
```

https://github.com/llvm/llvm-project/pull/98072