[ccache] ccache version 3.2.6 has been released

[Joel Rosdahl]

I'm happy to announce ccache version 3.2.6.

Details may be read in the release notes:

    http://ccache.samba.org/releasenotes.html#_ccache_3_2_6

Source archives are available here:

    https://www.samba.org/ftp/ccache/ccache-3.2.6.tar.bz2
    https://www.samba.org/ftp/ccache/ccache-3.2.6.tar.gz
    https://www.samba.org/ftp/ccache/ccache-3.2.6.tar.xz

The source archives have been signed with my OpenPGP key (5594ADB8):

    https://www.samba.org/ftp/ccache/ccache-3.2.6.tar.bz2.asc
    https://www.samba.org/ftp/ccache/ccache-3.2.6.tar.gz.asc
    https://www.samba.org/ftp/ccache/ccache-3.2.6.tar.xz.asc

You can run "gpg --verify ccache-3.2.6.tar.*.asc" to check the source
archive integrity after download.

Bug fixes:

- Fixed build problem on QNX, which lacks "SA_RESTART".

- Bail out on compiler option -fstack-usage since it creates a .su
  file which ccache currently doesn't handle.

- ccache now knows how to work around a glitch in the output of GCC 6's
  preprocessor.

- Fixed a bug where (due to ccache rewriting paths) the compiler could
  choose incorrect include files if CCACHE_BASEDIR is used and the
  source file path is absolute and is a symlink.

-- Joel