libarchive 3.1.2-218-g00f4bd83 (reduced)

Extract upstream libarchive using the following shell code.

url=git://github.com/libarchive/libarchive.git &&
v=3.1.2-218-g00f4bd83 &&
r=00f4bd83 &&
paths="
  CMakeLists.txt
  COPYING
  CTestConfig.cmake
  build/cmake
  build/pkgconfig
  build/utils
  build/version
  libarchive/*.*
" &&
mkdir libarchive-$v-g$r-reduced &&
git clone $url libarchive-git &&
date=$(cd libarchive-git && git log -n 1 --format='%cd' $r) &&
(cd libarchive-git && git archive --format=tar $r -- $paths) |
(cd libarchive-$v-g$r-reduced && tar xv) &&
fromdos libarchive-$v-g$r-reduced/build/cmake/Find*.cmake &&
echo "g$r date: $date"
libarchive: Disable more whitespace checks in third-party code
Merge branch 'libarchive-upstream' into update-libarchive

Resolve conflicts in favor of the upstream side where possible.
Resolve a logical conflict in archive_windows.h where the upstream
port to Watcom was done slightly differently from ours.
libarchive: Update README-CMake.txt for new snapshot
libarchive: Do not generate a pkg-config file

CMake does not install the headers or libraries so skip the .pc file
too.
libarchive: Drop options not present in reduced version

Drop ENABLE_TAR and ENABLE_CPIO related options because we do not build
these command-line tools.  Drop ENABLE_TEST and ENABLE_COVERAGE options
because we do not build the tests.
libarchive: Update archive_util.c to use CMake zlib and bzip2 headers
libarchive: Convert literal LL suffix to ARCHIVE_LITERAL_LL
libarchive: Do not require includers to have windows.h

In archive_entry.h refer to "BY_HANDLE_FILE_INFORMATION *" using
"struct _BY_HANDLE_FILE_INFORMATION *" to avoid requiring the
includer to already have <windows.h>.
Update libarchive configuration within CMake

Hard-code libarchive build options to the way CMake needs them.  Set
them as internal cache entries so users do not see them when building
CMake.
libarchive: Avoid using name 'u_long'

The system headers on some platforms define a 'u_long' type so we cannot
use the name.  Spell out 'unsigned long' instead.
Merge topic 'update-libarchive'

5a58efaa libarchive: Avoid using name 'u_long'
e2b02823 Update libarchive configuration within CMake
80883321 libarchive: Do not require includers to have windows.h
dfb0458e libarchive: Convert literal LL suffix to ARCHIVE_LITERAL_LL
b0a9807f libarchive: Update archive_util.c to use CMake zlib and bzip2 headers
debe4dec libarchive: Drop options not present in reduced version
66b0c4fa libarchive: Do not generate a pkg-config file
8092e759 libarchive: Update README-CMake.txt for new snapshot
2f197863 Merge branch 'libarchive-upstream' into update-libarchive
23e4666c libarchive: Disable more whitespace checks in third-party code
64713ae3 libarchive 3.1.2-218-g00f4bd83 (reduced)