Update the default version of GCC used in the Ports Collection from

GCC 4.6.4 to GCC 4.7.3.  This entails updating the lang/gcc port as
well as changing the default in Mk/bsd.default-versions.mk.

This adds powerpc64 as a supported architecture (and removes ia64,
though it can be supported by manually installing lang/gcc48).

New binaries %%GNU_HOST%%-gcc-ar47, %%GNU_HOST%%-gcc-nm47, and
%%GNU_HOST%%-gcc-ranlib47 are provided to support link-time
optimization (LTO) which scales significantly better.

And it adds support for indirect functions (IFUNCS), experimental
support for transactional memory in the compiler as well as a supporting
run-time library called libitm, a new string length optimization pass,
and support for atomic operations specifying the C++11/C11 memory model.

Version 3.1 of the OpenMP specification is now supported for the C,
C++, and Fortran compilers.

GCC accepts the options -std=c11 and -std=gnu11 for the C11 revision
of the ISO C standard which inlcude support for unicode strings,
nonreturning functions (_Noreturn and <stdnoreturn.h>), alignment
support (_Alignas, _Alignof, max_align_t, <stdalign.h>), and a
__builtin_complex built-in function.

The C++ frontend now accepts the -std=c++11, -std=gnu++11, and
-Wc++11-compat options and implements many C++11 features of the
language including extended friends syntax, explicit override
control, non-static data member initializers, user-defined literals,
alias declarations, delegating constructors, atomic classes, and more.

The C++ standard library and Fortran frontend have received many
improvements.  See http://gcc.gnu.org/gcc-4.7/changes.html for an
extense list of changes; http://gcc.gnu.org/gcc-4.7/porting_to.html
for information on how to port to that new version.

PR:		182136
Supported by:	Christoph Moench-Tegeder <cmt@burggraben.net> (fixing many ports)
Tested by:	bdrewery (two -exp runs)

2 files changed, 2 insertions, 2 deletions

diff --git a/Mk/bsd.default-versions.mk b/Mk/bsd.default-versions.mk
index 7885423f2032..d1f701fa3fb3 100644
--- a/Mk/bsd.default-versions.mk
+++ b/Mk/bsd.default-versions.mk
@@ -20,7 +20,7 @@ ${_l:U}_DEFAULT=	${lang:C/.*=//g}
 
 APACHE_DEFAULT?=	2.2
 FPC_DEFAULT?=		2.6.2
-GCC_DEFAULT?=		4.6
+GCC_DEFAULT?=		4.7
 LUA_DEFAULT?=		5.2
 MYSQL_DEFAULT?=		5.5
 PERL5_DEFAULT?=		5.16
diff --git a/Mk/bsd.gcc.mk b/Mk/bsd.gcc.mk
index f8e535b017af..cc158ea5be70 100644
--- a/Mk/bsd.gcc.mk
+++ b/Mk/bsd.gcc.mk
@@ -19,7 +19,7 @@
 #
 # Examples:
 #   USE_GCC=	yes			# port requires a current version of GCC
-#							# (4.6 as of today, subject to change).
+#							# (4.7 as of today, subject to change).
 #   USE_GCC=	any			# port requires GCC 4.2 or later.
 #   USE_GCC=	4.8+		# port requires GCC 4.8 or later.
 #   USE_GCC=	4.8			# port requires GCC 4.8.