[all-commits] [llvm/llvm-project] 38e745: [flang] Make the `flang` wrapper script check the ...

[Andrzej Warzyński via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 38e745b006238bee87476c3747b3e7229a8bc5c2
      https://github.com/llvm/llvm-project/commit/38e745b006238bee87476c3747b3e7229a8bc5c2
  Author: Andrzej Warzynski <andrzej.warzynski at arm.com>
  Date:   2022-01-12 (Wed, 12 Jan 2022)

  Changed paths:
    M flang/tools/f18/flang

  Log Message:
  -----------
  [flang] Make the `flang` wrapper script check the Bash version

The `flang` wrapper script has been written in a relatively modern
version of Bash and it fails on systems with older versions. This patch
makes the script check the version of Bash being used to run it and
generates an error when unsupported version is used.

This was discussed in more detail in:
  * https://github.com/flang-compiler/f18-llvm-project/issues/1344.
Many thanks to Anthony Cabrera for the suggestion and for identifying
the oldest version of Bash that we can use here.

Differential Revision: https://reviews.llvm.org/D116608