https://bugs.llvm.org/show_bug.cgi?id=34269
Bug ID: 34269
Summary: Clang 5.0.0 RC2 doesn't recognize DevDiv internal
builds of MSVC
Product: clang
Version: 5.0
Hardware: PC
OS: Windows NT
Status: NEW
Severity: release blocker
Priority: P
Component: Driver
Assignee: unassignedclangb...@nondot.org
Reporter: sfi...@hotmail.com
CC: llvm-bugs@lists.llvm.org
Mail thread: https://lists.llvm.org/pipermail/cfe-dev/2017-August/055022.html
Fixed in master by r311391: https://reviews.llvm.org/D36860
To summarize, there's a regression between Clang 4.0.1 and 5.0.0 RC2, where
Clang no longer recognizes the DevDiv-internal directory structure of MSVC
builds. This makes it more difficult for us to test MSVC's STL with Clang (such
testing helps us avoid writing code that unintentionally depends on
non-Standard behavior of C1XX, and also helps us find bugs in Clang).
While I figured out a workaround for this regression (explicitly pass
-fms-compatibility-version and invoke link.exe separately), it would be great
if the fix r311391 could be merged into 5.0.0.
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