qpdf: Fix build with Clang/libc++.

* Reference patch from my upstream PR:
  https://github.com/qpdf/qpdf/pull/21.

Closes #23412.
git 1.8.4.2
tomcat 7.0.47
poco (devel) 1.5.2

Closes #23711.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
Percona toolkit 2.2.5

Closes #23712.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
wine: fix library path in wrapper when building without x11

This was caused by `MacOS::X11.lib` raising an exception because of the
`MacOS::X11#prefix` method: the `@prefix` instance variable stays nil
when neither `/opt/X11/lib/libpng.dylib` nor `/usr/X11/lib/libpng.dylib`
exist.

Closes #23640.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
ragel: add patch to fix compilation with recent clang

Closes #23394.
ragel: use upstream fix
pypy: symlink pypy to bin

Closes #23723.
siege 3.0.5

Closes #23714.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
libtextcat 2.2

Closes #23339.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
Groonga 3.0.9

Closes #23690.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
tty-clock 0.1

Closes #23348.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
clockywock 0.3.1a

Closes #23638.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
vtclock 2005-02-20

Closes #23636.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
dateutils 0.2.5

Closes #23264.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
x265 0.4.1

Closes #22708.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
kernagic 0.2

Closes #22666.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
libav 9.10

* Add head URL.
* Enable more optional dependencies.
* Enable avplay with optional sdl dependency.
* Currently libcdio, libdc1394, and libgsm dependencies doesn't work out
  of the box. May need to keep an eye on them.
hping: fix building with secure strlcpy.

Closes #23677.