Requirement: callers are responsible for invoking #satisfied?

This hack was necessary since requirements were not checked again
in the forked build process, but now they are, and calling it again
after the build environment has been set up can produce incorrect
results. In fact, if it happens to return false the second time,
the env modification will be skipped altogether.
RabbitMQ 3.1.2

Closes #20742.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
ArangoDB 1.3.2

Closes #20748.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
brew-server: fix reference to removed method

Fixes #20744.
bup: remove debug output
sip 4.14.7

Closes #20755.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
msmtp: Delete unnecessary option code

Msmtp will enable support for the OS X Keychain by default on Macs.  No need to ask for it.

Closes #20753.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
deparallelized x264

Closes #19594.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
deparallelized yasm

Closes #19593.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
Perforce 2013.1.659207

Closes #20757.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
lua: make sigaction powerpatch default, support --without-sigaction

* update option decls to with/without
* apply sigaction powerpatch by default, unless --without-sigaction
  is passed.

Closes #20679.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
x264: remove trailing whitespace
mysql: fix checksum
Uniqify tags when merging dependencies
ghostscript: use optional dep for x11
Yield correct dependent when expanding requirements
Note which formula's requirements failed

Closes #20713.
emacs: shrink caveats

Remove caveats that duplicate option descriptions.
git-flow-completion 0.4.2.2

Closes #20775.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
msmtp: Explicitly request openssl

This is a preventative measure.

Msmtp can be built with either gnutls or openssl as its security lib.
By default, it will use gnutls if it exists on the user's system.  It
will use openssl only if either the user requests it or gnutls is
absent.  The current formula is silent about what security lib to use,
which means the brewer will get gnutls if it's present.

This is risky, because brewers have no idea that this is the case.
Suppose a brewer has gnutls brewed, and then brews msmtp with the
current official formula.  Then suppose the brewer removes gnutls later
but keeps msmtp.  Then msmtp will break, the user will have no idea why,
there probably will be a ticket, and no matter what the brewer will have
to rebrew.

It therefore seems better to explicitly ask msmtp to build against
openssl, since that isn't transient.  Msmtp will find the system's ssl.

For users who never brewed msmtp with gnutls already on their machines,
this commit changes nothing at all.

Closes #20756.

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