From 6a72279e5181acb50c679f075845b06d459238dd Mon Sep 17 00:00:00 2001
From: Derek Mauro <761129+derekmauro@users.noreply.github.com>
Date: Tue, 2 Nov 2021 16:49:07 -0400
Subject: Apply LTS transformations for 20211102 LTS branch (#1050)

---
 CMake/AbseilHelpers.cmake |  2 +-
 CMakeLists.txt            | 14 ++------------
 absl/base/config.h        |  4 ++--
 absl/base/options.h       |  4 ++--
 4 files changed, 7 insertions(+), 17 deletions(-)

diff --git a/CMake/AbseilHelpers.cmake b/CMake/AbseilHelpers.cmake
index 17c4f449..f2ce5675 100644
--- a/CMake/AbseilHelpers.cmake
+++ b/CMake/AbseilHelpers.cmake
@@ -278,7 +278,7 @@ Cflags: -I\${includedir}${PC_CFLAGS}\n")
     if(ABSL_ENABLE_INSTALL)
       set_target_properties(${_NAME} PROPERTIES
         OUTPUT_NAME "absl_${_NAME}"
-        SOVERSION 0
+        SOVERSION "2111.0.0"
       )
     endif()
   else()
diff --git a/CMakeLists.txt b/CMakeLists.txt
index d59c2ade..750a4755 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -50,7 +50,7 @@ endif (POLICY CMP0091)
 # This must come before the project() and include(CTest) lines.
 OPTION(BUILD_TESTING "Build tests" OFF)
 
-project(absl LANGUAGES CXX)
+project(absl LANGUAGES CXX VERSION 20211102)
 include(CTest)
 
 # Output directory is correct by default for most build setups. However, when
@@ -175,17 +175,7 @@ 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/absl/base/config.h b/absl/base/config.h
index d3cad682..585485c3 100644
--- a/absl/base/config.h
+++ b/absl/base/config.h
@@ -92,8 +92,8 @@
 //
 // 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 20211102
+#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 230bf1ee..56b4e36e 100644
--- a/absl/base/options.h
+++ b/absl/base/options.h
@@ -205,8 +205,8 @@
 // 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_20211102
 
 // ABSL_OPTION_HARDENED
 //
-- 
cgit v1.2.3