[ccache] ccache version 3.3.5 has been released

[Joel Rosdahl]

ccache version 3.3.5 is now available.

Details may be read in the release notes:

    http://ccache.samba.org/releasenotes.html#_ccache_3_3_5

Source archives are available here:

    https://www.samba.org/ftp/ccache/ccache-3.3.5.tar.bz2
    https://www.samba.org/ftp/ccache/ccache-3.3.5.tar.gz
    https://www.samba.org/ftp/ccache/ccache-3.3.5.tar.xz

The source archives have been signed with my OpenPGP key (ID 5594ADB8,
fingerprint 5A93 9A71 A467 92CF 5786 6A51 996D DA07 5594 ADB8):

    https://www.samba.org/ftp/ccache/ccache-3.3.5.tar.bz2.asc
    https://www.samba.org/ftp/ccache/ccache-3.3.5.tar.gz.asc
    https://www.samba.org/ftp/ccache/ccache-3.3.5.tar.xz.asc

You can run "gpg --verify ccache-3.3.5.tar.*.asc" to check the source
archive integrity after download.

Improvements:

- Documented how automatic cache cleanup works.


Bug fixes:

- Fixed a regression where the original order of debug options could be
  lost. This reverts the "Improved parsing of -g* options" feature in
  ccache 3.3.

- Multiple -fdebug-prefix-map options should now be handled correctly.

- Fixed matching of directories in the ignore_headers_in_manifest
  configuration option.

- Fixed detection of missing argument to -opt/--options-file.

- ccache now bails out when building a precompiled header if any of the
  corresponding header files have an updated timestamp. This fixes
  complaints from clang.

- Fixed a bug related to erroneously storing a dependency file with
  absolute paths in the cache on a preprocessed hit.

- "ccache -c/--cleanup" now works like documented: it just recalculates
  size counters and trims the cache to not exceed the max size and file
  number limits. Previously, the forced cleanup took "limit_multiple"
  into account, so that "ccache -c/--cleanup" by default would trim the
  cache to 80% of the max limit.

- ccache no longer ignores linker arguments for clang since clang warns
about
  them.

- Plugged a couple of file descriptor leaks.

- Fixed a bug where ccache would skip hashing the compiler argument
  following a -fno-working-directory, -fworking-directory, -nostdinc,
  -nostdinc++, -remap or -trigraphs option in preprocessor mode.

-- Joel