[PATCH] D115604: [Support] Expand `<@>` as the base directory in response files.

[Jack Andersen via Phabricator via llvm-commits]

jackoalan created this revision.
jackoalan added reviewers: kadircet, Bigcheese.
Herald added subscribers: dexonsmith, hiraditya.
jackoalan requested review of this revision.
Herald added a project: LLVM.
Herald added a subscriber: llvm-commits.

Extends response file expansion to recognize `<@>` and expand to the response 
file's directory. This makes it much easier to author clang config files rooted 
in portable, potentially not-installed SDK directories.

A typical use case may be something like the following:

  # sample_sdk.cfg
  --target=sample
  -isystem <@>/include
  -L <@>/lib
  -T <@>/ldscripts/link.ld


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D115604

Files:
  llvm/lib/Support/CommandLine.cpp
  llvm/unittests/Support/CommandLineTest.cpp

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D115604.393774.patch
Type: text/x-patch
Size: 6861 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20211212/7adc1e41/attachment.bin>