[Mlir-commits] [mlir] [mlir][OpenMP] Change device declare target functions to hidden visibility (PR #207234)

[Robert Imschweiler]

ro-i wrote:

```
CMake Error: Error required internal CMake variable not set, cmake may not be built correctly.
Missing variable is:
CMAKE_Fortran_PREPROCESS_SOURCE
CMake Error at /usr/local/therock-tools/share/cmake-3.27/Modules/CMakeDetermineCompilerABI.cmake:57 (try_compile):
  Failed to generate test project build system.
Call Stack (most recent call first):
  /usr/local/therock-tools/share/cmake-3.27/Modules/CMakeTestFortranCompiler.cmake:20 (CMAKE_DETERMINE_COMPILER_ABI)
  cmake/config-Fortran.cmake:148 (enable_language)
  CMakeLists.txt:297 (include)
-- Configuring incomplete, errors occurred!
```

That seems unrelated to this PR...

https://github.com/llvm/llvm-project/pull/207234