genex-LINK_LIBRARY: Add feature WHOLE_ARCHIVE

Help/manual/cmake-generator-expressions.7.rst

@@ -1125,9 +1125,9 @@ Output-Related Expressions
 
     add_library(lib1 STATIC ...)
     add_library(lib2 ...)
-    target_link_libraries(lib2 PRIVATE "$<LINK_LIBRARY:whole_archive,lib1>")
+    target_link_libraries(lib2 PRIVATE "$<LINK_LIBRARY:load_archive,lib1>")
 
-  This specify to use the ``lib1`` target with feature ``whole_archive`` for
+  This specify to use the ``lib1`` target with feature ``load_archive`` for
   linking target ``lib2``. The feature must have be defined by
   :variable:`CMAKE_<LANG>_LINK_LIBRARY_USING_<FEATURE>` variable or, if
   :variable:`CMAKE_<LANG>_LINK_LIBRARY_USING_<FEATURE>_SUPPORTED` is false,

Help/release/dev/LINK_LIBRARY-WHOLE_ARCHIVE.rst

@@ -0,0 +1,14 @@
+LINK_LIBRARY-WHOLE_ARCHIVE
+--------------------------
+
+* The :genex:`LINK_LIBRARY` generator expression gained the feature
+  ``WHOLE_ARCHIVE`` to force load of all members in a static library. This
+  feature is supported on the following target platforms:
+
+  * all ``Apple`` variants
+  * ``Linux``
+  * all ``BSD`` variants
+  * ``SunOS``
+  * ``Windows``
+  * ``CYGWIN``
+  * ``MSYS``

Help/variable/CMAKE_LINK_LIBRARY_USING_FEATURE.txt

@@ -46,27 +46,27 @@ is offered by various environments but with a specific syntax:
 
 .. code-block:: cmake
 
-  set(CMAKE_C_LINK_LIBRARY_USING_whole_archive_SUPPORTED TRUE)
+  set(CMAKE_C_LINK_LIBRARY_USING_load_archive_SUPPORTED TRUE)
   if(CMAKE_C_COMPILER_ID STREQUAL "AppleClang")
-    set(CMAKE_C_LINK_LIBRARY_USING_whole_archive "-force_load <LIB_ITEM>")
+    set(CMAKE_C_LINK_LIBRARY_USING_load_archive "-force_load <LIB_ITEM>")
   elseif(CMAKE_C_COMPILER_ID STREQUAL "GNU"
          AND CMAKE_SYSTEM_NAME STREQUAL "Linux")
-    set(CMAKE_C_LINK_LIBRARY_USING_whole_archive "LINKER:--push-state,--whole-archive"
-                                                 "<LINK_ITEM>"
-                                                 "LINKER:--pop-state")
+    set(CMAKE_C_LINK_LIBRARY_USING_load_archive "LINKER:--push-state,--whole-archive"
+                                                "<LINK_ITEM>"
+                                                "LINKER:--pop-state")
   elseif(CMAKE_C_COMPILER_ID STREQUAL "MSVC")
-    set(CMAKE_C_LINK_LIBRARY_USING_whole_archive "/WHOLEARCHIVE:<LIBRARY>")
+    set(CMAKE_C_LINK_LIBRARY_USING_load_archive "/WHOLEARCHIVE:<LIBRARY>")
   else()
     # feature not yet supported for the other environments
-    set(CMAKE_C_LINK_LIBRARY_USING_whole_archive_SUPPORTED FALSE)
+    set(CMAKE_C_LINK_LIBRARY_USING_load_archive_SUPPORTED FALSE)
   endif()
 
   add_library(lib1 STATIC ...)
 
   add_library(lib2 SHARED ...)
-  if(CMAKE_C_LINK_LIBRARY_USING_whole_archive_SUPPORTED)
+  if(CMAKE_C_LINK_LIBRARY_USING_load_archive_SUPPORTED)
     target_link_libraries(lib2 PRIVATE
-      "$<LINK_LIBRARY:whole_archive,lib1,$<IF:$<LINK_LANG_AND_ID:C,Clang>,libexternal.a,external>>")
+      "$<LINK_LIBRARY:load_archive,lib1,$<IF:$<LINK_LANG_AND_ID:C,Clang>,libexternal.a,external>>")
   else()
     target_link_libraries(lib2 PRIVATE lib1 external)
   endif()

Help/variable/LINK_LIBRARY_PREDEFINED_FEATURES.txt

@@ -5,6 +5,24 @@
   useful with :prop_tgt:`LINK_LIBRARY_OVERRIDE` and
   :prop_tgt:`LINK_LIBRARY_OVERRIDE_<LIBRARY>` target properties.
 
+**Features available for a subset of environments**
+
+``WHOLE_ARCHIVE``
+  Force load of all members in a static library.
+
+  Target platforms supported: all ``Apple`` variants, ``Linux``, all ``BSD``
+  variants, ``SunOS``, ``Windows``, ``CYGWIN``, and ``MSYS``.
+
+  Platform-specific notes:
+
+  * On Apple platforms, the library must be specified as a CMake target name, a
+    library file name (such as ``libfoo.a``), or a library file path (such as
+    ``/path/to/libfoo.a``).  It cannot be specified as a plain library name
+    (such as ``foo``, where ``foo`` is not CMake target), due to a limitation
+    in the Apple linker.
+  * On Windows platforms, for ``MSVC`` or MSVC-like toolchains, the version
+    must be greater than ``1900``.
+
 **Features available in Apple environments**
 
 It is assumed that the linker used is the one provided by `XCode` or is