- Copy stable/10@285827 to releng/10.2 in preparation for 10.2-RC1
builds.
- Update newvers.sh to reflect RC1.
- Update __FreeBSD_version to reflect 10.2.
- Update default pkg(8) configuration to use the quarterly branch.[1]

Discussed with: re, portmgr [1]
Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

MFC r260332;
gcc: backport some fixes from llvm-gcc

llvm-gcc backported some patches from gcc trunk:

http://gcc.gnu.org/ml/gcc-cvs/2007-05/msg00662.html
http://gcc.gnu.org/ml/gcc-cvs/2007-07/msg00019.html
http://gcc.gnu.org/ml/gcc-cvs/2007-08/msg00240.html
http://gcc.gnu.org/ml/gcc-cvs/2007-08/msg00493.html

The first two were always GPL2. The last two were
added after the GPL3 transition, but were written
by aaw@google.com and Rafael Espíndola got permission
to relicense them under the GPL2 for inclusion in
llvm-gcc.

This fixes GCC-PR c++/31749

Obtained from: llvm-gcc (rev. 75463; GPLv2)

MFC r259655 (partial), r259944:

gcc: merge small upstream changes.

Fix for PR c++/29928

Backport from mainline:
2007-04-24 Hui-May Chang <hm.chang@apple.com>

* reload1.c (merge_assigned_reloads) : Do not merge a RELOAD_OTHER
instruction with a RELOAD_FOR_OPERAND_ADDRESS instruction.

Obtained from: gcc 4.3 (rev. r124115, 124724: GPLv2)

MFC r259525, r259526, r259529

gcc: small merges from upstream

fix ICE in rs6000 when using -fno-trapping-math.
Solves GCC-PR target/30485

Solve GCC issues:
PR middle-end/32602
PR middle-end/32603

Updates the to documentation and processing improvement.

Obtained from: gcc 4.3 (rev. 120902, 120902, 119427, 126278, 126422;
GPLv2)

MFC r259005, r259092:

gcc: Add -flax-vector-conversions
gcc: new fvisibility-ms-compat option

These are useful for compatibility with newwer gcc and clang.

Obtained from: gcc 4.3 (rev. 120572, 120688, 126088; 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 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 r258731:

gcc: Make use of TREE_OVERFLOW_P.

While it was brought in r258179 only to fix a build issue,
bringing the rest of the change has the advantage of fixing
GCC/19978.

Obtained from: gcc 4.3 (rev. 120505; 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

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)

Reference:
[1] http://gcc.gnu.org/viewcvs/gcc/trunk/?pathrev=126700

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