Abseil LTS branch, Aug 2025, Patch 1 (#1940)

* Fix CHECK_<OP> ambiguous overload for operator<< in older versions of GCC (ba9a180)
* Fix CHECK_<OP> compilation failures on older versions of GCC which eagerly tries to instantiate std::underlying_type for non-enum types (e8c1a5f)
* Add missing rules_cc loads (2370ccf)

Apply LTS transformations for 20250814 LTS branch (#1920)

Apply LTS transformations for 20250814 LTS branch (#1920)

Abseil LTS Branch, May 2025, Patch 1 (#1900)

Fix conditional constexpr in ToInt64{Nano|Micro|Milli}seconds
under GCC7 and GCC8 using an else clause as a workaround

Fix -Wundef warning

Apply LTS transformations for 20250512 LTS branch (#1886)

* Apply LTS transformations for 20250512 LTS branch

* Cherry-pick google/cctz@306fd9b

Apply LTS transformations for 20250512 LTS branch (#1886)

* Apply LTS transformations for 20250512 LTS branch

* Cherry-pick google/cctz@306fd9b

Abseil LTS Branch, Jan 2025, Patch 1 (#1857)

--

Fix buffer overflow the internal demangling function
The overflow can happen during rollback after a parsing
failure, where the null terminator is written without
verifying the buffer bounds.

Credit to www.code-intelligence.com for reporting this issue

PiperOrigin-RevId: 732995553
Change-Id: Ic5075f53e510d270e1784d593defcd53f9121d02

--

Actually use the hint space instruction to strip PAC bits for return
addresses in stack traces as the comment says

https://android.googlesource.com/platform/libcore/+/71f2c75111e87091616f0f3b86bea6c4d345dad1/src/hotspot/os_cpu/linux_aarch64/pauth_linux_aarch64.inline.hpp

PiperOrigin-RevId: 724360415
Change-Id: I691160e43354131a04919765ce283e07c3c933a9

PR #1819: fix compilation with AppleClang (#1820)

Imported from GitHub PR #1819

Fix the following error:

absl/random/internal/randen_detect.cc:123:12: error: no member named 'nullopt' in namespace 'std'; did you mean 'absl::nullopt'?
  123 |     return std::nullopt;
      |            ^~~~~~~~~~~~
      |            absl::nullopt
absl/types/optional.h:86:43: note: 'absl::nullopt' declared here
   86 | ABSL_INTERNAL_INLINE_CONSTEXPR(nullopt_t, nullopt,
      |                                           ^
Merge b9a2d39 into 7253ff8

Merging this change closes #1819

COPYBARA_INTEGRATE_REVIEW=#1819 from clementperon:master b9a2d39
PiperOrigin-RevId: 722599523
Change-Id: Ie66cbf9daf3b115668194da8b74acd6a43e12a03

Co-authored-by: Clément Péron <peron.clem@gmail.com>

PR #1819: fix compilation with AppleClang (#1820)

Imported from GitHub PR #1819

Fix the following error:

absl/random/internal/randen_detect.cc:123:12: error: no member named 'nullopt' in namespace 'std'; did you mean 'absl::nullopt'?
  123 |     return std::nullopt;
      |            ^~~~~~~~~~~~
      |            absl::nullopt
absl/types/optional.h:86:43: note: 'absl::nullopt' declared here
   86 | ABSL_INTERNAL_INLINE_CONSTEXPR(nullopt_t, nullopt,
      |                                           ^
Merge b9a2d39 into 7253ff8

Merging this change closes #1819

COPYBARA_INTEGRATE_REVIEW=#1819 from clementperon:master b9a2d39
PiperOrigin-RevId: 722599523
Change-Id: Ie66cbf9daf3b115668194da8b74acd6a43e12a03

Co-authored-by: Clément Péron <peron.clem@gmail.com>

Apply LTS transformations for 20250127 LTS branch (#1815)