Export of internal Abseil changes

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20405fc394419d434d3ea09b2e62e4edcb282421 by Christian Blichmann <cblichmann@google.com>:

Include `status` subdirectory in main `CMakeLists.txt`

PiperOrigin-RevId: 297125966

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101087af9689612bdda679ee0869e5cde4472244 by Matt Kulukundis <kfm@google.com>:

Fix typo

PiperOrigin-RevId: 296991360

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55ff5bc6970d46214c0459d3a7a23973c7dc69b9 by Andy Getzendanner <durandal@google.com>:

Extract logging's ErrnoSaver to absl::base_internal and use it in a couple other places.

PiperOrigin-RevId: 296969168

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b7cd7550297d53766576f751436617200c65831b by Abseil Team <absl-team@google.com>:

Internal change

PiperOrigin-RevId: 296951474

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8c04c73fc53f9a09c3e2400812b931157f35fe07 by Andy Soffer <asoffer@google.com>:

Auto-generate list of files in the DLL, and add new build targets to the DLL.

PiperOrigin-RevId: 296932061

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2f77829e196094f1addefd8ac2ac9e398c5b6100 by Andy Soffer <asoffer@google.com>:

Fix bug introduced by DLL where we couldn't build shared libraries on
non-windows platforms.

Fixes #623

PiperOrigin-RevId: 296919347

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b768163dbbff0c561b9dff0218a699e5e4fd33f3 by Abseil Team <absl-team@google.com>:

typo: microprosessor

PiperOrigin-RevId: 296904933

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b185da0dac44c91855373f0723df9242cbfb3db3 by Matthew Brown <matthewbr@google.com>:

Internal cleanup

PiperOrigin-RevId: 296509711
GitOrigin-RevId: 20405fc394419d434d3ea09b2e62e4edcb282421
Change-Id: I55c8eba6f353ceb337455ae144ab743ea21edbef

CMake/AbseilDll.cmake

@@ -16,6 +16,7 @@ set(ABSL_INTERNAL_DLL_FILES
   "base/internal/cycleclock.h"
   "base/internal/direct_mmap.h"
   "base/internal/endian.h"
+  "base/internal/errno_saver.h"
   "base/internal/exponential_biased.cc"
   "base/internal/exponential_biased.h"
   "base/internal/hide_ptr.h"
@@ -108,6 +109,8 @@ set(ABSL_INTERNAL_DLL_FILES
   "debugging/internal/symbolize.h"
   "debugging/internal/vdso_support.cc"
   "debugging/internal/vdso_support.h"
+  "functional/internal/front_binder.h"
+  "functional/bind_front.h"
   "functional/function_ref.h"
   "functional/internal/function_ref.h"
   "hash/hash.h"
@@ -169,18 +172,23 @@ set(ABSL_INTERNAL_DLL_FILES
   "random/uniform_int_distribution.h"
   "random/uniform_real_distribution.h"
   "random/zipf_distribution.h"
+  "status/status.h"
+  "status/status.cc"
+  "status/status_payload_printer.h"
+  "status/status_payload_printer.cc"
   "strings/ascii.cc"
   "strings/ascii.h"
   "strings/charconv.cc"
   "strings/charconv.h"
+  "strings/cord.cc"
+  "strings/cord.h"
   "strings/escaping.cc"
   "strings/escaping.h"
+  "strings/internal/cord_internal.h"
   "strings/internal/charconv_bigint.cc"
   "strings/internal/charconv_bigint.h"
   "strings/internal/charconv_parse.cc"
   "strings/internal/charconv_parse.h"
-  "strings/internal/escaping.cc"
-  "strings/internal/escaping.h"
   "strings/internal/stl_type_traits.h"
   "strings/match.cc"
   "strings/match.h"
@@ -200,6 +208,8 @@ set(ABSL_INTERNAL_DLL_FILES
   "strings/substitute.cc"
   "strings/substitute.h"
   "strings/internal/char_map.h"
+  "strings/internal/escaping.h"
+  "strings/internal/escaping.cc"
   "strings/internal/memutil.cc"
   "strings/internal/memutil.h"
   "strings/internal/ostringstream.cc"
@@ -308,6 +318,7 @@ set(ABSL_INTERNAL_DLL_TARGETS
   "memory"
   "strings"
   "strings_internal"
+  "cord"
   "str_format"
   "str_format_internal"
   "pow10_helper"
@@ -377,6 +388,7 @@ set(ABSL_INTERNAL_DLL_TARGETS
   "random_internal_randen_hwaes"
   "random_internal_randen_hwaes_impl"
   "random_internal_uniform_helper"
+  "status"
   "time"
   "civil_time"
   "time_zone"

CMake/AbseilHelpers.cmake

@@ -108,14 +108,16 @@ function(absl_cc_library)
     set(ABSL_CC_LIB_IS_INTERFACE 0)
   endif()
 
-  # Determine this build target's relationship to the DLL. It's one of three things:
+  # Determine this build target's relationship to the DLL. It's one of four things:
   # 1. "dll"     -- This target is part of the DLL
   # 2. "dll_dep" -- This target is not part of the DLL, but depends on the DLL.
   #                 Note that we assume any target not in the DLL depends on the
   #                 DLL. This is not a technical necessity but a convenience
   #                 which happens to be true, because nearly every target is
   #                 part of the DLL.
-  # 3. "static"  -- This target does not depend on the DLL and should be built
+  # 3. "shared"  -- This is a shared library, perhaps on a non-windows platform
+  #                 where DLL doesn't make sense.
+  # 4. "static"  -- This target does not depend on the DLL and should be built
   #                 statically.
   if (${ABSL_BUILD_DLL})
     absl_internal_dll_contains(TARGET ${_NAME} OUTPUT _in_dll)
@@ -127,6 +129,8 @@ function(absl_cc_library)
       # Building a DLL, but this target is not part of the DLL
       set(_build_type "dll_dep")
     endif()
+  elseif(BUILD_SHARED_LIBS)
+    set(_build_type "shared")
   else()
     set(_build_type "static")
   endif()
@@ -161,8 +165,8 @@ function(absl_cc_library)
           "${_gtest_link_define}"
       )
 
-    elseif(${_build_type} STREQUAL "static")
-      add_library(${_NAME} STATIC "")
+    elseif(${_build_type} STREQUAL "static" OR ${_build_type} STREQUAL "shared")
+      add_library(${_NAME} "")
       target_sources(${_NAME} PRIVATE ${ABSL_CC_LIB_SRCS} ${ABSL_CC_LIB_HDRS})
       target_link_libraries(${_NAME}
       PUBLIC ${ABSL_CC_LIB_DEPS}