Build: Bump all toolchains to GCC 4.9.4 + Binutils 2.26.1

GCC 4.9.4 was already used for MIPS and all hosted targets; this enables
it across the board for everything (ie m68k and arm native)

Other changes:

 * Use '-Os' as the default optiomization for all targets
   (was only disabled for arm native)
 * Enable -funit-at-a-time and -Wextra
 * Drop all obsolete toolchain patches
 * Update ARM multilib/exception patch
 * Bump toolchain libs (gmp, mpfr, mpc) to recommended versions, and
   add 'isl' to enable better optimization & vectorization opportunities.

   (Will revisit optimization for the codecs and plugins at a later date)

Confirmed working:

 * armv4t     (ipodmini2g and many other PP502x targets)
 * arm >= v5  (sansaclipplus, ipod6g, ipodnano2g, sansafuzeplus)
 * m68k (ihp100)

Change-Id: If9ed405ae0f289d9adea46d4cf46bfefc2f4250d

1 files changed, 0 insertions, 21 deletions

diff --git a/tools/toolchain-patches/binutils-2.20.1-texinfo-fix.diff b/tools/toolchain-patches/binutils-2.20.1-texinfo-fix.diff
deleted file mode 100644
index cca0861eef..0000000000
--- a/tools/toolchain-patches/binutils-2.20.1-texinfo-fix.diff
+++ /dev/null
@@ -1,21 +0,0 @@
-diff -ru binutils-2.20.1-orig/bfd/doc/bfd.texinfo binutils-2.20.1/bfd/doc/bfd.texinfo
---- binutils-2.20.1-orig/bfd/doc/bfd.texinfo 2013-05-12 17:28:30.461074959 +0200
-+++ binutils-2.20.1/bfd/doc/bfd.texinfo 2013-05-12 17:26:54.175902524 +0200
-@@ -323,7 +323,7 @@
- @printindex cp
- 
- @tex
--% I think something like @colophon should be in texinfo.  In the
-+% I think something like @@colophon should be in texinfo.  In the
- % meantime:
- \long\def\colophon{\hbox to0pt{}\vfill
- \centerline{The body of this manual is set in}
-@@ -334,7 +334,7 @@
- \centerline{{\sl\fontname\tensl\/}}
- \centerline{are used for emphasis.}\vfill}
- \page\colophon
--% Blame: doc@cygnus.com, 28mar91.
-+% Blame: doc@@cygnus.com, 28mar91.
- @end tex
- 
- @bye