Normalization include:
- Use dnl for everything that can be ommitted when configure is built in
favor of the shell comment character # which is visible in the output.
- Line length normalized to 80 columns
- Dots for most of the one line sentences
- Macro definitions include similar pattern header comments now
The $Id$ keywords were used in Subversion where they can be substituted
with filename, last revision number change, last changed date, and last
user who changed it.
In Git this functionality is different and can be done with Git attribute
ident. These need to be defined manually for each file in the
.gitattributes file and are afterwards replaced with 40-character
hexadecimal blob object name which is based only on the particular file
contents.
This patch simplifies handling of $Id$ keywords by removing them since
they are not used anymore.
FreeBSD calls it tidy5. Still, the check is not perfect, as both
old and new lib can coexist. ATM, the preference is to pick up the
old lib, still. In it's absense the new one will be looked up.
Our existing libtidy support is based on the legacy "HTML tidy"
project. That project now has a successor called tidy-html5, where all
new features and bugfixes happen. Of particular note are the fixes for
two security vulnerabilities, CVE-2015-5522 and CVE-2015-5523.
The API is largely unchanged in the new project (which is truly the
successor of the original -- not a fork), and so it is almost a
drop-in replacement as far as PHP is concerned. However, one file has
changed in the new project: "buffio.h" has been moved to
"tidybuffio.h".
This commit detects the presence of tidybuffio.h at build time, and
then adjusts the import statement in tidy.c accordingly. The result is
a build that works against either the legacy project or the new
tidy-html5 project, although the test suite for the tidy extension now
fails. Those failures are not critical and will be fixed.
Gentoo-Bug: 561452
Gentoo-Bug: 585474
PHP-Bug: 72379
