From e9827f0b82751687f35d21d29f86adfab63a8dd5 Mon Sep 17 00:00:00 2001 From: Eric Astor Date: Thu, 30 Apr 2020 15:29:52 -0400 Subject: [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 --- llvm/lib/ToolDrivers/llvm-lib/LibDriver.cpp | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'llvm/lib/ToolDrivers/llvm-lib/LibDriver.cpp') diff --git a/llvm/lib/ToolDrivers/llvm-lib/LibDriver.cpp b/llvm/lib/ToolDrivers/llvm-lib/LibDriver.cpp index 3ea5312..69106bb 100644 --- a/llvm/lib/ToolDrivers/llvm-lib/LibDriver.cpp +++ b/llvm/lib/ToolDrivers/llvm-lib/LibDriver.cpp @@ -292,8 +292,9 @@ int llvm::libDriverMain(ArrayRef ArgsArr) { return 0; } - // If no input files, silently do nothing to match lib.exe. - if (!Args.hasArgNoClaim(OPT_INPUT)) + // If no input files and not told otherwise, silently do nothing to match + // lib.exe + if (!Args.hasArgNoClaim(OPT_INPUT) && !Args.hasArg(OPT_llvmlibempty)) return 0; if (Args.hasArg(OPT_lst)) { -- cgit v1.1