- Copy stable/10@296371 to releng/10.3 in preparation for 10.3-RC1
builds.
- Update newvers.sh to reflect RC1.
- Update __FreeBSD_version to reflect 10.3.
- Update default pkg(8) configuration to use the quarterly branch.

Approved by: re (implicit)

MFC r260311, r260831:

gcc: Add support for Apple's Block extension

Block objects [1] are a C-level syntactic and runtime feature. They
are similar to standard C functions, but in addition to executable
code they may also contain variable bindings to automatic (stack)
or managed (heap) memory. A block can therefore maintain a set of
state (data) that it can use to impact behavior when executed.

This port is based on Apple's GCC 5646 with some bugfixes from
Apple GCC 5666.3. It has some small differences with the support
in clang, which remains the recommended compiler.

Perhaps the most notable difference is that in GCC __block is not
actually a keyword, but a macro. There may be workaround for this
issue in the future. Other issues can be consulted in the clang
documentation [2]

For better compatiblity with Apple's GCC and llvm-gcc, some related
fixes and features from Apple have been included. Support for the
non-standard nested functions in GCC is now off by default.

No effort was made to update the ObjC support since FreeBSD doesn't
carry ObjC in the base system but some of the code crept in and
was more difficult to remove than to adjust.

References:
[1]
https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/Blocks/Articles/00_Introduction.html
[2]
http://clang.llvm.org/compatibility.html#block-variable-initialization

Obtained from: Apple GCC 4.2

MFC r260014, r260099:

gcc: Add support for label attributes and "unavailable" attribute.

Apple GCC has extensions to support for both label attributes and
an "unavailable" attribute. These are critical for objc but are
also useful in regular C/C++.

Obtained from: Apple GCC 4.2 - 5531

MFC r258017, r258429, r258748, r258817:

Merge updates from FSF pre4.3 GCC inspired on Apple's gcc:

Updates to libiberty and mangling.
New align attribute.
Merge Apple updates to libstdc++.

MFC r258081, r258138, r258143, r258179, r258157, r258204, 258205,
r258206, r258207, r258321

This is a series of commits inspired on Google's gcc-4.2.1 for
Android that were taken from the gcc pre-4.3 under the GPLv2.

gcc: Backport fixes for -W parentheses in C++
This fixes GCC 19564.
gcc: merge rs6000 change from FSF pre-gcc43
Don't set MASK_PPC_GFXOPT for 8540 or 8548.
Merge vrp-tree fix from gcc-4.3
Fix missed conversion from / to >> (GCC PR32521)
Merge in GCCr120505 to include definition of TREE_OVERFLOW_P
gcc: warn about integer overflow in constant expressions in the C++ frontend.
gcc: Add a new option -Wvla to warn variable length array.
libcpp: preprocessor speedup patches from upstream gcc.
gcc: add femit-struct-debug support to reduce Reduce dwarf debug size
gcc: Fix postreload-gcse treatment of call-clobbered registers.
gcc: Record some previous commits in the ChangeLog.gcc43 file.

Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

- Fix typo in check_for_nested_with_variably_modified present
- Implement -Wvariable-decl.
- Port -Wtrampolines support from gcc3.
(all three also via OpenBSD)

PR: gnu/127136, gnu/157019
Submitted by: Henning Petersen, Pedro Giffuni
MFC after: 6 weeks

Merge an important change that I mistakenly left out when merging C99
inline function support. This should fix instances where gcc
spuriously reports the following error:

error: nested function 'foo' declared but never defined

Make gcc use C99 inline semantics in c99 and gnu99 mode. This was the
original intent, but the functionality wasn't implemented until after
gcc 4.2 was released. However, if you compiled a program that would
behave differently before and after this change, gcc 4.2 would have
warned you; hence, everything currently in the base system is
unaffected by this change. This patch also adds additional warnings
about certain inline function-related bogosity, e.g., using a
static non-const local variable in an inline function.

These changes were merged from a snapshot of gcc mainline from March
2007, prior to the GPLv3 switch. I then ran the regression test suite
from a more recent gcc snapshot and fixed the important bugs it found.
I also squelched the following warning unless -pedantic is specified:

foo is static but used in inline function bar which is not static

This is consistent with LLVM's behavior, but not consistent with gcc 4.3.

Reviewed by: arch@

FreeBSD uses unchanged versions of this files.

Resolve conflicts after GCC 3.4.6 20060825 import.

Fix bug where static forward declarations weren't accepted.
This allows us to fix non-ISO-C constructs in our kernel to legal ISO-C.

Submitted by: rodrigc
Obtained from: http://gcc.gnu.org/ml/gcc-patches/2005-09/msg00006.html

Stock files.

Use stock version of this file.
Revision 1.3 to suppress warnings on K&R main is not useful anymore
since GCC suppresses such warnings unconditionally now.

Merge r1.3 (suppress warnings on K&R main).

Merge FreeBSD modifications into gcc 3.3.1-release:
1.3 suppress warnings on K&R main.

Merge FreeBSD modifications into gcc 3.3.1-prerelease:
1.3 suppress warnings on K&R main.

Rev. 1.2 (options for kernel printf enhancements) changes have been
moved to another

Merge FreeBSD modifications into gcc 3.2.2 release:
1.2 kernel printf enhancements framework.
1.3 suppress prototype warnings on K&R main.

Merge revs 1.2 (kernel printf framework) and 1.3 (suppress K&R main warnings)
into Gcc 3.2.1 release.

Merge FreeBSD modifications into gcc 3.2.1-prerelease:
1.2 kernel printf enchancements framework
1.3 suppress warnings on K&R main

Approved by: obrien

Merge FreeBSD modifications into gcc 3.2.1-prerelease:
1.2 kernel printf enchancements framework
1.3 suppress warnings on K&R main

Approved by: obrien

If you want to not warn on K&R main(); this is how it should be implemented.

Add framework for our kernel printf enhancements.

This commit was generated by cvs2svn to compensate for changes in r96489,
which included commits to RCS files with non-trunk default branches.

Gcc 3.1.0 pre-release from the FSF anoncvs repo on 9-May-2002 15:57:15 EDT.

Enlist the FreeBSD-CURRENT users as testers of what is to become Gcc 3.1.0.
These bits are taken from the FSF anoncvs repo on 1-Feb-2002 08:20 PST.

Enlist the FreeBSD-CURRENT users as testers of GCC 2.95.3 Release Candidate #3

Bring in bug fixes from the GCC anoncvs server's "gcc-2_95-branch"
branch as of March 7th, 2000.

Virgin import of the GCC 2.95.1 compilers

Virgin import of gcc from EGCS 1.1.2

Import of unmodified (but trimmed) gcc-2.7.2. The bigger parts of the
non-i386, non-unix, and generatable files have been trimmed, but can easily
be added in later if needed.

gcc-2.7.2.1 will follow shortly, it's a very small delta to this and it's
handy to have both available for reference for such little cost.

The freebsd-specific changes will then be committed, and once the dust has
settled, the bmakefiles will be committed to use this code.