Export of internal Abseil changes.

--
da04b8cd21f6225d71397471474d34a77df0efd6 by Jon Cohen <cohenjon@google.com>:

Don't use std::any, std::optional, std::variant, and friends on MacOS versions older than 10.14.

Although Xcode 10 includes those headers and makes the types available to use, according to https://developer.apple.com/documentation/xcode_release_notes/xcode_10_release_notes, on MacOS 10.13 and earlier use of any functions (std::get, for example) results in an error message to upgrade to MacOS 10.14.

This fixes https://github.com/abseil/abseil-cpp/issues/207.  See that issue for more information on the error generated.

PiperOrigin-RevId: 221844618

--
1d99f77b4c60c5b0d7984f46e8ed63a3f969c635 by Jon Cohen <cohenjon@google.com>:

raw_hash_set_test is still flaky under gcc 4.8.  Since we now have the probe_test, we don't need the PerfectRatio tests.  Just remove them.

PiperOrigin-RevId: 221843042

--
135cbb2a5d90963256518b3b59fe6710815e5dfa by Abseil Team <absl-team@google.com>:

Update absl/algorithm/CMakeLists.txt to use new functions
i.e. absl_cc_(library|test)

PiperOrigin-RevId: 221828348

--
1a5abde4f17f998ae89d87155d59f982a70202d8 by Jon Cohen <cohenjon@google.com>:

Internal change

PiperOrigin-RevId: 221708245

--
e03e031d4de39275989f695c768b0940cce1ff16 by Matt Armstrong <marmstrong@google.com>:

Log to FATAL in throw_delegate.h

ABSL_RAW_LOG(FATAL, ...) is guaranteed to abort.
Previously, the code was logging to ERROR and
calling abort() explicitly, which defeated any
integration with absl::raw_logging_internal::AbortHook().

These changes are limited to Abseil internal APIs.

PiperOrigin-RevId: 221696513

--
d13691523a3f9a5367fd1194cf9604bf4a969029 by Shahriar Rouf <nafi@google.com>:

Import of CCTZ from GitHub.

PiperOrigin-RevId: 221694877

--
f4044c56d44ba0ac2a9f218ed55f1b1f9e985eae by Abseil Team <absl-team@google.com>:

Update absl/base/CMakeLists.txt to use new functions
i.e. absl_cc_(library|test)

PiperOrigin-RevId: 221676669
GitOrigin-RevId: da04b8cd21f6225d71397471474d34a77df0efd6
Change-Id: If6621e10d096a39b6a056a072c2727a0df0b0620

2 files changed, 13 insertions, 9 deletions

diff --git a/CMake/AbseilHelpers.cmake b/CMake/AbseilHelpers.cmake
index 3b9148ea72bd..cc606ccbd2f7 100644
--- a/CMake/AbseilHelpers.cmake
+++ b/CMake/AbseilHelpers.cmake
@@ -73,11 +73,12 @@ endfunction()
 # DEFINES: List of public defines
 # LINKOPTS: List of link options
 # PUBLIC: Add this so that this library will be exported under absl:: (see Note).
+# Also in IDE, target will appear in Abseil folder while non PUBLIC will be in Abseil/internal.
 # TESTONLY: When added, this target will only be built if user passes -DABSL_RUN_TESTS=ON to CMake.
 #
 # Note:
 # By default, absl_cc_library will always create a library named absl_internal_${NAME},
-# which means other targets can only depend this library as absl_internal_${NAME}, not ${NAME}.
+# and alias target absl::${NAME}.
 # This is to reduce namespace pollution.
 #
 # absl_cc_library(
@@ -98,7 +99,7 @@ endfunction()
 # )
 #
 # If PUBLIC is set, absl_cc_library will instead create a target named
-# absl_${NAME} and an alias absl::${NAME}.
+# absl_${NAME} and still an alias absl::${NAME}.
 #
 # absl_cc_library(
 #   NAME
@@ -146,7 +147,13 @@ function(absl_cc_library)
       target_compile_definitions(${_NAME} PUBLIC ${ABSL_CC_LIB_DEFINES})
 
       # Add all Abseil targets to a a folder in the IDE for organization.
-      set_property(TARGET ${_NAME} PROPERTY FOLDER ${ABSL_IDE_FOLDER})
+      if(ABSL_CC_LIB_PUBLIC)
+        set_property(TARGET ${_NAME} PROPERTY FOLDER ${ABSL_IDE_FOLDER})
+      elseif(ABSL_CC_LIB_TESTONLY)
+        set_property(TARGET ${_NAME} PROPERTY FOLDER ${ABSL_IDE_FOLDER}/test)
+      else()
+        set_property(TARGET ${_NAME} PROPERTY FOLDER ${ABSL_IDE_FOLDER}/internal)
+      endif()
     else()
       # Generating header-only library
       add_library(${_NAME} INTERFACE)
@@ -157,10 +164,7 @@ function(absl_cc_library)
       )
       target_compile_definitions(${_NAME} INTERFACE ${ABSL_CC_LIB_DEFINES})
     endif()
-
-    if(ABSL_CC_LIB_PUBLIC)
-      add_library(absl::${ABSL_CC_LIB_NAME} ALIAS ${_NAME})
-    endif()
+    add_library(absl::${ABSL_CC_LIB_NAME} ALIAS ${_NAME})
   endif()
 endfunction()
 
@@ -231,7 +235,7 @@ function(absl_cc_test)
     PRIVATE ${ABSL_CC_TEST_LINKOPTS}
   )
   # Add all Abseil targets to a a folder in the IDE for organization.
-  set_property(TARGET ${_NAME} PROPERTY FOLDER ${ABSL_IDE_FOLDER})
+  set_property(TARGET ${_NAME} PROPERTY FOLDER ${ABSL_IDE_FOLDER}/test)
 
   add_test(NAME ${_NAME} COMMAND ${_NAME})
 endfunction()
diff --git a/CMake/DownloadGTest.cmake b/CMake/DownloadGTest.cmake
index 9d4132158b8d..3c682aef07f3 100644
--- a/CMake/DownloadGTest.cmake
+++ b/CMake/DownloadGTest.cmake
@@ -4,7 +4,7 @@
 # Download the latest googletest from Github master
 configure_file(
   ${CMAKE_CURRENT_LIST_DIR}/CMakeLists.txt.in
-  googletest-download/CMakeLists.txt
+  ${CMAKE_BINARY_DIR}/googletest-download/CMakeLists.txt
 )
 
 # Configure and build the downloaded googletest source