- 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 r258826, r259555, r 259558:

libcpp: Merge fixes from upstream
Fixes:
GCC preprocessor/29966:
GCC preprocessor/28709:
GCC c/31924
GCC preprocessor/14331

gcc: add Apple-compatible -Wnewline-eof

Obtained from: gcc per-4.3 (rev. 121340, 124356, 124358, 124730,
125212, 125255 ; GPLv2)
Apple Inc. (Apple GCC 4.2 - 5531)

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

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

Add support for the GCC binary integer constants extension.

This is required to build the i965 backend with newer versions of mesa.

Original patch from Joerg Wunsch in GCC Bug 23479, under the GPLv2;
also taken from there in OpenBSD.

Obtained from: gcc 4.3 (rev. 125346; GPLv2)
MFC after: 5 days

Add support for "d" floating-point suffix, as defined by draft N1312
of TR 24732. Emit pedantic warning if the feature is being used.

Should solve GCC bug 39027.

Obtained from: OpenBSD
MFC after: 2 weeks

This commit was generated by cvs2svn to compensate for changes in r169695,
which included commits to RCS files with non-trunk default branches.

GCC 4.2.0 release miscellaneous support libraries.