Import 2014-01-01 which allows to support bison's token-table and allows
to build ntpd into vendor
Convert an unused banner from skeleton.c into a comment.
It is added to every generated files and fix build at certain warning level with clang 3.4

Submitted by:	Thomas Dickey <dickey@his.com> (byacc upstream)
Spotted by:	glebius
Import byacc 20140409
Play musical-KNOBS a bit more with release/arm/release.sh.

For stable/10, r264703 sets the correct WITH/WITHOUT
knobs to get xdev built with the arm-freebsd-gcc binary
installed.  Unfortunately, the same fix does not work on
head/.

Also, quite to my amazement, WITH_GCC=1 and WITH_GNUCXX=1
causes xdev to fail spectactularly at least on r264791.

The situation as it stands is:

 - gcc(1) is needed for the u-boot build.
 - cc(1) *cannot* be clang(1)

To shoe-horn the toolchain to make 'xdev' give what is
needed, remove WITH_GNUCXX=1 and add WITH_GCC_BOOTSTRAP=1.

MFC After:	1 week
X-MFC-To:	stable/10 only
X-MFC-Note:	after stable/10 is broken in this way...
Sponsored by:	The FreeBSD Foundation
Move xdev knobs from release/arm/release.sh and into an
XDEV_FLAGS variable in ${KERNCONF}.conf file.

MFC after:	3 days
X-MFC-Note:	fix stable/10 XDEV_FLAGS local for branch
Sponsored by:	The FreeBSD Foundation
Fix grammar error and trailing newline.

Submitted by:	danfe
MFC after:	3 days
Wrap the rate control re-init code in a lock, to serialise it with
concurrent updates from any completing transmits in other threads.

This was exposed when doing power save work - net80211 is constantly
doing reassociations and it's causing the rate control state to get
blanked out.  This could cause the rate control code to assert.

This should be MFCed to stable/10 as it's a stability fix.

Tested:

* AR5416, STA

MFC after:	7 days
- Get transmit loop more in line with the other serial drivers.
- Add a comment about FTDI and ZLPs.
- Correctly check odditiy of baud rate divisor.
- Correct IOCTL handling for "error" and "event" char.

MFC after:	1 weeks
Add a missing break.
Oops, revert r264801.
Update to byacc 20140409
Among all the modifications, this new byacc also solves a 14 year old bug [1]

PR:		bin/23254 [1]
Submitted by:	marka@nominum.com [1]
MFC after:	3 weeks
Allow .WAIT to appear in SUBDIR= lists, to provide some control over
parallel build order.  All subdirs before a .WAIT will be built before
any subdirs after it.

Reviewed by:	imp@
Make usage printing more consistent with other tools.

- Introduce a separate usage() function.
- Don't use argv[0]. Directly name the application, as we do elsewhere.
- Don't prepend the application name.
- Don't print two newlines.
Enable LLDB by default on amd64

Sponsored by:	DARPA, AFRL
Add THR and LIBRT signals missing in libc/kernel

Sponsored by:	DARPA, AFRL
Merge LLVM r202188:

  Debug info: Support variadic functions.
  Variadic functions have an unspecified parameter tag after the last
  argument. In IR this is represented as an unspecified parameter in the
  subroutine type.

  Paired commit with CFE r202185.

  rdar://problem/13690847

  This re-applies r202184 + a bugfix in DwarfDebug's argument handling.

This merge includes a change to use the LLVM 3.4 API in
lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp:

DwarfUnit -> CompileUnit

Sponsored by:	DARPA, AFRL
Merge Clang r202185:

  Debug info: Generate debug info for variadic functions.
  Paired commit with LLVM.

  rdar://problem/13690847

This merege includes changes to use the Clang 3.4 API (revisions
199686 and 200082) in lib/CodeGen/CGDebugInfo.cpp:

getParamType  -> getArgType
getNumParams  -> getNumArgs
getReturnType -> getResultType

Sponsored by:	DARPA, AFRL
Clean up error reporting

Omit "too many sections" warnings if the ELF file is not dynamically
linked (and is therefore skipped anyway), and otherwise output it only
once.  An errant core file would previously cause kldxref to output a
number of warnings.

Sponsored by:	The FreeBSD Foundation