Merge branch 'InstallRequiredSystemLibraries-vs12-mfc' into release
KWSys SystemInformation: Include backtrace APIs whenever we use them

Include execinfo.h, cxxabi.h, and dlfcn.h under the same conditions
under which we use the APIs from them.  Move their inclusion out of
OS-specific blocks.
Merge branch 'backport-kwsys-compile-fix' into release
Merge branch 'hpux-compile' into release
CMake Nightly Date Stamp
Revert "Features: Record for Clang 3.4"

This reverts commit 5d60be1a1d5763ae9712dafd867561605b8b82e4.
Merge topic 'clang-features' into next

d704c620 Revert "Features: Record for Clang 3.4"
Allow to disable the Package Registry

Add 3 new variables:

 * CMAKE_EXPORT_NO_PACKAGE_REGISTRY that disables the export(PACKAGE)
   command
 * CMAKE_FIND_PACKAGE_NO_PACKAGE_REGISTRY that disables the User Package
   Registry in all the find_package calls.
 * CMAKE_FIND_PACKAGE_NO_SYSTEM_PACKAGE_REGISTRY that disables the
   System Package Registry in all the find_package calls.

Update documentation and unit tests.

Fix Issue #14849
Revert topic
Merge topic 'compile-features-C-language' into next

68b72a4d Revert topic
Revert "Features: Record for GNU 4.7."

This reverts commit d6cc1e559b89ebe166a9d5120845bedafe14db33.
Merge topic 'GNU-4.7-features' into next

b256051d Revert "Features: Record for GNU 4.7."
Revert topic.
Merge topic 'decay-language-version' into next

a9805e39 Revert topic.
Revert "Add the WriteCompilerDetectionHeader module."

This reverts commit c7d4f110a10fbcedef57663355d8482ed365fdba.
Merge topic 'WriteCompilerDetectionHeader-module' into next

fe734199 Revert "Add the WriteCompilerDetectionHeader module."
Project: Clarify comment about platform-native compilers.
Project: Generate the CXX compiler Id test from multiple files.

This will allow sharing of the logic of the order to test compilers in
and the preprocessor macros used to do that and to determine the
version components.
Project: Split the compiler id detection into a separate function.

This can be extended with parameters to control the output and re-used
in other contexts.
CompilerId: Allow specifying the compiler-specific components to generate.