[all-commits] [llvm/llvm-project] e9827f: [ms] Add new option to llvm-lib: /llvmlibempty

[Eric Astor via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: e9827f0b82751687f35d21d29f86adfab63a8dd5
      https://github.com/llvm/llvm-project/commit/e9827f0b82751687f35d21d29f86adfab63a8dd5
  Author: Eric Astor <epastor at google.com>
  Date:   2020-04-30 (Thu, 30 Apr 2020)

  Changed paths:
    M llvm/lib/ToolDrivers/llvm-lib/LibDriver.cpp
    M llvm/lib/ToolDrivers/llvm-lib/Options.td
    M llvm/test/tools/llvm-lib/no-inputs.test

  Log Message:
  -----------
  [ms] Add new option to llvm-lib: /llvmlibempty

Summary:
Add a new option (/llvmlibempty). If passed and llvm-lib does not give an error, it will create a valid output archive even if empty.

By default, llvm-lib mimicks lib.exe: if given no input files, it doesn't create its output file at all. This is incompatible with some build systems, so we add a command-line option to toggle this compatibility behavior.

Reviewed By: thakis

Differential Revision: https://reviews.llvm.org/D78894