[flang-commits] [clang] [flang] [flang] Generalize -pedantic to take an optional argument (PR #196410)

[Tarun Prabhu via flang-commits]

tarunprabhu wrote:

> FYI: My colleagues tried to build many Fortran softwares by [Spack](https://spack.io/) using Flang two years ago. They encountered many `-std=legacy` GFortran options, one `-std=f2003` option, and one `-std=gnu` option.

Thanks for the insight, @kawashima-fj. I have [reposted this comment](https://discourse.llvm.org/t/rfc-support-for-std-f2023/89608/40) in a related [RFC](https://discourse.llvm.org/t/rfc-support-for-std-f2023/89608/) for greater visibility.

https://github.com/llvm/llvm-project/pull/196410