From b56cbdd23834a65682c0b46f367f8679e83bc894 Mon Sep 17 00:00:00 2001
From: Abseil Team <absl-team@google.com>
Date: Fri, 18 Sep 2020 15:55:15 -0700
Subject: Abseil LTS 20200923

What's New:
* `absl::StatusOr<T>` has been released. See our [blog
  post](https://abseil.io/blog/2020-091021-status) for more
  information.
* Abseil Flags reflection interfaces have been released.
* Abseil Flags memory usage has been significantly optimized.
* Abseil now supports a "hardened" build mode. This build mode enables
  runtime checks that guard against programming errors that may lead
  to security vulnerabilities.

Notable Fixes:
* Sanitizer dynamic annotations like `AnnotateRWLockCreate` that are
  also defined by the compiler sanitizer implementation are no longer
  also defined by Abseil.
* Sanitizer macros are now prefixed with `ABSL_` to avoid naming collisions.
* Sanitizer usage is now automatically detected and no longer requires
  macros like `ADDRESS_SANITIZER` to be defined on the command line.

Breaking Changes:
* Abseil no longer contains a `dynamic_annotations` library. Users
  using a supported build system (Bazel or CMake) are unaffected by
  this, but users manually specifying link libraries may get an error
  about a missing linker input.

Baseline: 7680a5f8efe32de4753baadbd63e74e59d95bac1
Cherry picks: None
---
 absl/copts/copts.py | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'absl/copts/copts.py')

diff --git a/absl/copts/copts.py b/absl/copts/copts.py
index 704ef234..a3437c1b 100644
--- a/absl/copts/copts.py
+++ b/absl/copts/copts.py
@@ -128,6 +128,7 @@ COPT_VARS = {
         "-Wmissing-declarations",
         "-Woverlength-strings",
         "-Wpointer-arith",
+        "-Wundef",
         "-Wunused-local-typedefs",
         "-Wunused-result",
         "-Wvarargs",
@@ -140,6 +141,8 @@ COPT_VARS = {
         # Google style does not use unsigned integers, though STL containers
         # have unsigned types.
         "-Wno-sign-compare",
+        # Don't define min and max macros (Build on Windows using gcc)
+        "-DNOMINMAX",
     ],
     "ABSL_GCC_TEST_FLAGS": [
         "-Wno-conversion-null",
@@ -151,7 +154,10 @@ COPT_VARS = {
         "-Wno-unused-private-field",
     ],
     "ABSL_LLVM_FLAGS":
-        LLVM_BIG_WARNING_FLAGS + LLVM_DISABLE_WARNINGS_FLAGS,
+        LLVM_BIG_WARNING_FLAGS + LLVM_DISABLE_WARNINGS_FLAGS + [
+            # Don't define min and max macros (Build on Windows using clang)
+            "-DNOMINMAX",
+        ],
     "ABSL_LLVM_TEST_FLAGS":
         LLVM_TEST_DISABLE_WARNINGS_FLAGS,
     "ABSL_CLANG_CL_FLAGS":
-- 
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