[PATCH] D62172: [cmake] Add custom command to touch archives so ninja won't rebuild them.

[Don Hinton via Phabricator via llvm-commits]

hintonda added a comment.

In D62172#1510515 <https://reviews.llvm.org/D62172#1510515>, @beanz wrote:

> It is silly that CMake doesn't expose the ninja version, but it is easy enough to get it. It should be something like:
>
>   if(CMAKE_GENERATOR STREQUAL "Ninja")
>     execute_process(COMMAND ${RunCMake_MAKE_PROGRAM} --version
>         OUTPUT_VARIABLE ninja_version OUTPUT_STRIP_TRAILING_WHITESPACE)
>     if(ninja_version VERSION_GREATER 1.8.2)
>       set(ninja_greater_1_8_2 On)
>     endif()
>   endif()
>
>
> I know this is a bunch of seemingly odd boiler plate, but since we're working around tools bugs in non-LLVM tools which will hopefully someday be fixed, I'd like to restrict this fix to only places where we know the bug is present.


I already added it to llvm/cmake/config-ix.cmake.  Please let me know if it looks okay.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D62172/new/

https://reviews.llvm.org/D62172