Export of internal Abseil changes

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

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

PiperOrigin-RevId: 297125966

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

Fix typo

PiperOrigin-RevId: 296991360

--
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

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

Internal change

PiperOrigin-RevId: 296951474

--
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

--
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

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

typo: microprosessor

PiperOrigin-RevId: 296904933

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

Internal cleanup

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

1 files changed, 8 insertions, 4 deletions

diff --git a/CMake/AbseilHelpers.cmake b/CMake/AbseilHelpers.cmake
index 7571ef1b..86ff9eba 100644
--- a/CMake/AbseilHelpers.cmake
+++ b/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}