From ad73c6dc1a253203c1c8b529cda18f2138d49df0 Mon Sep 17 00:00:00 2001
From: Derek Mauro <761129+derekmauro@users.noreply.github.com>
Date: Tue, 16 Jan 2024 13:30:44 -0500
Subject: [PATCH] Apply LTS transformations for 20240116 LTS branch (#1599)

---
 CMake/AbseilHelpers.cmake |  2 +-
 CMakeLists.txt            | 14 ++------------
 MODULE.bazel              |  2 +-
 absl/base/config.h        |  4 ++--
 absl/base/options.h       |  4 ++--
 5 files changed, 8 insertions(+), 18 deletions(-)

diff --git a/CMake/AbseilHelpers.cmake b/CMake/AbseilHelpers.cmake
index bd1c71b073e..c53b3584d88 100644
--- a/CMake/AbseilHelpers.cmake
+++ b/CMake/AbseilHelpers.cmake
@@ -298,7 +298,7 @@ Cflags: -I\${includedir}${PC_CFLAGS}\n")
     if(ABSL_ENABLE_INSTALL)
       set_target_properties(${_NAME} PROPERTIES
         OUTPUT_NAME "absl_${_NAME}"
-        SOVERSION 0
+        SOVERSION "2401.0.0"
       )
     endif()
   else()
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 87f8ae82c38..194f8708683 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -58,7 +58,7 @@ if (POLICY CMP0141)
   cmake_policy(SET CMP0141 NEW)
 endif (POLICY CMP0141)
 
-project(absl LANGUAGES CXX)
+project(absl LANGUAGES CXX VERSION 20240116)
 include(CTest)
 
 # Output directory is correct by default for most build setups. However, when
@@ -186,17 +186,7 @@ endif()
 add_subdirectory(absl)
 
 if(ABSL_ENABLE_INSTALL)
-  # absl:lts-remove-begin(system installation is supported for LTS releases)
-  # We don't support system-wide installation
-  list(APPEND SYSTEM_INSTALL_DIRS "/usr/local" "/usr" "/opt/" "/opt/local" "c:/Program Files/${PROJECT_NAME}")
-  if(NOT DEFINED CMAKE_INSTALL_PREFIX OR CMAKE_INSTALL_PREFIX IN_LIST SYSTEM_INSTALL_DIRS)
-    message(WARNING "\
-  The default and system-level install directories are unsupported except in LTS \
-  releases of Abseil.  Please set CMAKE_INSTALL_PREFIX to install Abseil in your \
-  source or build tree directly.\
-    ")
-  endif()
-  # absl:lts-remove-end
+  
 
   # install as a subdirectory only
   install(EXPORT ${PROJECT_NAME}Targets
diff --git a/MODULE.bazel b/MODULE.bazel
index 18190e8e794..efbc88b26e8 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -16,7 +16,7 @@
 
 module(
     name = "abseil-cpp",
-    version = "head",
+    version = "20240116.0",
     compatibility_level = 1,
 )
 
diff --git a/absl/base/config.h b/absl/base/config.h
index 0fb669275f1..762bb7f78d2 100644
--- a/absl/base/config.h
+++ b/absl/base/config.h
@@ -117,8 +117,8 @@
 //
 // LTS releases can be obtained from
 // https://github.com/abseil/abseil-cpp/releases.
-#undef ABSL_LTS_RELEASE_VERSION
-#undef ABSL_LTS_RELEASE_PATCH_LEVEL
+#define ABSL_LTS_RELEASE_VERSION 20240116
+#define ABSL_LTS_RELEASE_PATCH_LEVEL 0
 
 // Helper macro to convert a CPP variable to a string literal.
 #define ABSL_INTERNAL_DO_TOKEN_STR(x) #x
diff --git a/absl/base/options.h b/absl/base/options.h
index a169658fcea..d7bf8cffe6d 100644
--- a/absl/base/options.h
+++ b/absl/base/options.h
@@ -225,8 +225,8 @@
 // be changed to a new, unique identifier name.  In particular "head" is not
 // allowed.
 
-#define ABSL_OPTION_USE_INLINE_NAMESPACE 0
-#define ABSL_OPTION_INLINE_NAMESPACE_NAME head
+#define ABSL_OPTION_USE_INLINE_NAMESPACE 1
+#define ABSL_OPTION_INLINE_NAMESPACE_NAME lts_20240116
 
 // ABSL_OPTION_HARDENED
 //