- 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 r259841

gcc: Add ability to generate DWARF pubtypes section if
DEBUG_PUBTYPES_SECTION is defined.

Obtained from: gcc 4.3 (rev. 118826; GPLv2)

gcc: Merge upstream changes.

Include types in error message for build_binary_op.

Mostly cosmetic changes, to reduce differences with Apple's gcc.

Obtained from: gcc 4.3 (rev. 120611, 124839, 125239; GPLv2)

MFC r258428, r258445

gcc: another round of merges from the gcc pre-43 branch.

Bring The following revisions from the gcc43 branch[1]:

118360, 118361, 118363, 118576, 119820,
123906, 125246, and 125721.

They all have in common that the were merged long ago
into Apple's gcc and should help improve the general
quality of the compiler and make it easier to bring
new features from Apple's gcc42.

For details please review the additions to the files:
gcc/ChangeLog.gcc43
gcc/cp/ChangeLog.gcc43 (new, adds previous revisions)

Fix crosscompilation (r258445 by andreast)
Reference:
[1] http://gcc.gnu.org/viewcvs/gcc/trunk/?pathrev=126700

Obtained from: gcc pre4.3 (GPLv2) branch
MFC after: 3 weeks

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

gcc: avoid generating negative values to DW_AT_byte_size.

The previous change was actually a NOP because size is
unsigned and compilers are dumb.

Submitted by: Christoph Mallon
MFC after: 1 week

gcc: avoid generating negative values to DW_AT_byte_size.

There is a bug in gcc (GCC/35998) where dwarf reports
sizes of unsigned -1 (0xffffffff).

On NetBSD this generated a faulty CTF entry which then
caused a segfault in ctfmerge. The issue was worked
around in NetBSD's Dtrace but since the issue originated
in gcc, it seems reasonable to fix it here.

Upstream gcc has been slow to react to this issue and
the author that submitted the patch is not interested
in licensing the change to us, so I did an independent
workaround for the issue.

MFC after: 1 week

Upgrade of base gcc and libstdc++ to the last GPLv2-licensed revision
(rev. 127959 of gcc-4_2-branch).

Resolved GCC bugs:
c++: 17763, 29365, 30535, 30917, 31337, 31941, 32108, 32112, 32346,
32898, 32992
debug: 32610, 32914
libstdc++: 33084, 33128
middle-end: 32563
rtl-optimization: 33148
tree-optimization: 25413, 32723
target: 32218

Tested by: pointyhat (miwi)
Obtained from: gcc (gcc-4_2-branch up to rev. 127959)
PR: gnu/153298, gnu/153959, gnu/154385
MFC after: 1 month

Output DWARF debug information for global 'using' declarations, instead
of just blowing up. A very similar change to this exists which is
GPLv3 licensed, this is my own change.

This problem was triggered by running the Boost regression tests.

See also: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31899
Reviewed by: luigi
Approved by: re (kib)

This commit was generated by cvs2svn to compensate for changes in r171825,
which included commits to RCS files with non-trunk default branches.

GCC 4.2.1 release.

GCC 4.2.0 release.

Gcc 3.4.4 release.

Gcc 3.4.2 20040728.

Gcc 3.3.3 20031106.

Gcc 3.3.1-release.

Gcc 3.3.1-pre as of 2003-07-11.

Gcc 3.2.1-prerelease from the FSF anoncvs repo gcc-3_2-branch on 1-Sep-2002 00:00:01 EDT.

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

Enlist the FreeBSD-CURRENT users as testers of GCC 2.95.3 Release Candidate #1

Virgin import of the GCC 2.95.1 compilers

Virgin import of gcc from EGCS 1.1.2