diff --git a/rtems/config/tools/rtems-gcc-4.7.2-newlib-2.0.0-1.cfg b/rtems/config/tools/rtems-gcc-4.7.2-newlib-2.0.0-1.cfg
new file mode 100644
index 0000000..8c840b6
--- /dev/null
+++ b/rtems/config/tools/rtems-gcc-4.7.2-newlib-2.0.0-1.cfg
@@ -0,0 +1,55 @@
+#
+# GCC 4.7.2., Newlib 2.0.0
+#
+
+%include %{_configdir}/checks.cfg
+%include %{_configdir}/base.cfg
+
+%define gcc_version    4.7.2
+%define newlib_version 2.0.0
+%define mpfr_version   3.0.1
+%define mpc_version    0.8.2
+%define gmp_version    5.0.5
+
+%define with_threads 1
+%define with_plugin  0
+%define with_iconv   1
+
+#
+# AVR C++ does not work.
+#   configure: error: unable to detect exception model
+#
+%if %{_target} == avr-rtems4.11
+%define enable_cxx 0
+%endif
+
+#
+# M32C C++ does not work.
+#   gcc-4.7.2/libstdc++-v3/src/mt_allocator.cc:76: error: cast from 'void*' to 'size_t' loses precision
+#
+%if %{_target} == m32c-rtems4.11
+%define enable_cxx 0
+%endif
+
+%ifn %{defined enable_cxx}
+%define enable_cxx 1
+%endif
+
+#
+# If arm-rtems4.11 add --enable-obsolete.
+#
+%if %{_target} == arm-rtems4.11
+%define enable_obsolete 1
+%else
+%define enable_obsolete 0
+%endif
+
+#
+# The RTEMS 4.11 patches
+#
+Patch0: gcc-4.7.2-rtems4.11-20121026.diff
+
+#
+# The gcc/newlib build instructions. We use 4.7 Release 1.
+#
+%include %{_configdir}/gcc-4.7-1.cfg
diff --git a/rtems/config/tools/rtems-gcc-4.8-ss-newlib-2.0.0-1.cfg b/rtems/config/tools/rtems-gcc-4.8-ss-newlib-2.0.0-1.cfg
new file mode 100644
index 0000000..bfd08f4
--- /dev/null
+++ b/rtems/config/tools/rtems-gcc-4.8-ss-newlib-2.0.0-1.cfg
@@ -0,0 +1,55 @@
+#
+# GCC 4.8.x., Newlib 2.0.0
+#
+
+%include %{_configdir}/checks.cfg
+%include %{_configdir}/base.cfg
+
+%define gcc_version    4.8-20130217
+%define newlib_version 2.0.0
+%define mpfr_version   3.0.1
+%define mpc_version    0.8.2
+%define gmp_version    5.0.5
+
+%define with_threads 1
+%define with_plugin  0
+%define with_iconv   1
+
+#
+# AVR C++ does not work.
+#   configure: error: unable to detect exception model
+#
+%if %{_target} == avr-rtems4.11
+%define enable_cxx 0
+%endif
+
+#
+# M32C C++ does not work.
+#   gcc-4.7.2/libstdc++-v3/src/mt_allocator.cc:76: error: cast from 'void*' to 'size_t' loses precision
+#
+%if %{_target} == m32c-rtems4.11
+%define enable_cxx 0
+%endif
+
+%ifn %{defined enable_cxx}
+%define enable_cxx 1
+%endif
+
+#
+# If arm-rtems4.11 add --enable-obsolete.
+#
+%if %{_target} == arm-rtems4.11
+%define enable_obsolete 1
+%else
+%define enable_obsolete 0
+%endif
+
+#
+# The RTEMS 4.11 patches
+#
+Source0: ftp://gcc.gnu.org/pub/gcc/snapshots/%{gcc_version}/gcc-%{gcc_version}.tar.bz2
+
+#
+# The gcc/newlib build instructions. We use 4.7 Release 1.
+#
+%include %{_configdir}/gcc-4.8-1.cfg
diff --git a/rtems/config/unstable/4.11/rtems-arm.bset b/rtems/config/unstable/4.11/rtems-arm.bset
new file mode 100644
index 0000000..a716f8d
--- /dev/null
+++ b/rtems/config/unstable/4.11/rtems-arm.bset
@@ -0,0 +1,20 @@
+#
+# Tools Set for RTEMS ARM 4.11 Unstable
+#
+
+%define _target arm-rtems4.11
+
+%define release 1
+
+#
+# The RTEMS 4.11 base defines.
+#
+%include rtems-4.11-base.bset
+
+#
+# Tools configuration.
+#
+expat-2.1.0-1
+tools/rtems-binutils-2.22-1
+tools/rtems-gcc-4.8-ss-newlib-2.0.0-1
+tools/rtems-gdb-7.5-1
diff --git a/source-builder/config/gcc-4.8-1.cfg b/source-builder/config/gcc-4.8-1.cfg
new file mode 100644
index 0000000..f81cbf7
--- /dev/null
+++ b/source-builder/config/gcc-4.8-1.cfg
@@ -0,0 +1,209 @@
+#
+# GCC 4.7 Version 1.
+#
+# This configuration file configure's, make's and install's gcc. It uses
+# newlib, MPFR, MPC, and GMP in a one-tree build configuration.
+#
+
+#
+# Default to C++ on.
+#
+%ifn %{defined enable_cxx}
+%define enable_cxx 1
+%endif
+
+%include %{_configdir}/checks.cfg
+
+%ifn %{defined gcc_version_message}
+%error No GCC Version message defined.
+%endif
+
+Name:      %{_target}-gcc-%{gcc_version}-newlib-%{newlib_version}-%{release}
+Summary:   GCC v%{gcc_version} and Newlib v%{newlib_version} for target %{_target} on host %{_host}
+Version:   %{gcc_version}
+Release:   %{release}
+URL: 	   http://gcc.gnu.org/
+BuildRoot: %{_tmppath}/%{name}-root-%(%{__id_u} -n)
+
+#
+# Source
+#
+#
+# GCC core and G++
+#
+%ifn %{defined Source0}
+ Source0: ftp://ftp.gnu.org/gnu/gcc/gcc-%{gcc_version}/gcc-%{gcc_version}.tar.bz2
+ VersionContro0: git clone git://gcc.gnu.org/git/gcc.git
+%endif
+
+#
+# Newlib
+#
+%ifn %{defined Source10}
+ Source10: ftp://sourceware.org/pub/newlib/newlib-%{newlib_version}.tar.gz
+ VersionControl10: cvs -z 9 -d :pserver:anoncvs@sources.redhat.com:/cvs/src co newlib
+%endif
+
+#
+# Packages GCC requires
+#
+%ifn %{defined Source20}
+ Source20: http://www.mpfr.org/mpfr-%{mpfr_version}/mpfr-%{mpfr_version}.tar.bz2
+%endif
+%ifn %{defined Source21}
+ Source21: http://www.multiprecision.org/mpc/download/mpc-%{mpc_version}.tar.gz
+%endif
+%ifn %{defined Source22}
+ Source22: ftp://ftp.gnu.org/gnu/gmp/gmp-%{gmp_version}.tar.bz2
+%endif
+
+#
+# The GCC library directory
+#
+%global _gcclibdir %{_prefix}/lib
+
+#
+# Prepare the source code.
+#
+%prep
+  %setup -q -c -T -n %{name}-%{version}
+
+  # gcc and optional the g++ core if separate packages
+  %setup -q -T -D -n %{name}-%{version} -a0
+  %{?source1:%setup -q -T -D -n %{name}-%{version} -a1}
+  cd gcc-%{gcc_version}
+  %{?patch0:%patch0 -p1}
+  %{?patch1:%patch1 -p1}
+  %{?patch2:%patch2 -p1}
+  %{?patch3:%patch3 -p1}
+  %{?patch4:%patch4 -p1}
+  %{?patch5:%patch5 -p1}
+  %{?patch6:%patch6 -p1}
+  %{?patch7:%patch7 -p1}
+  %{?patch8:%patch8 -p1}
+  %{?patch9:%patch9 -p1}
+  cd ..
+
+  # newlib
+  %setup -q -T -D -n %{name}-%{version} -a10
+  cd newlib-%{newlib_version}
+  %{?patch10:%patch10 -p1}
+  %{?patch11:%patch11 -p1}
+  %{?patch12:%patch12 -p1}
+  %{?patch13:%patch13 -p1}
+  %{?patch14:%patch14 -p1}
+  %{?patch15:%patch15 -p1}
+  %{?patch16:%patch16 -p1}
+  %{?patch17:%patch17 -p1}
+  %{?patch18:%patch18 -p1}
+  %{?patch19:%patch19 -p1}
+  cd ..
+
+  # Link newlib into the gcc source tree
+  ln -s ../newlib-%{newlib_version}/newlib gcc-%{gcc_version}
+
+  # MPFR
+  %setup -q -T -D -n %{name}-%{version} -a20
+  cd mpfr-%{mpfr_version}
+  %{?patch20:%patch20 -p1}
+  cd ..
+  # Build MPFR one-tree style
+  ln -s ../mpfr-%{mpfr_version} gcc-%{gcc_version}/mpfr
+
+  # MPC
+  %setup -q -T -D -n %{name}-%{version} -a21
+  cd mpc-%{mpc_version}
+  %{?patch21:%patch21 -p1}
+  cd ..
+  # Build MPC one-tree style
+  ln -s ../mpc-%{mpc_version} gcc-%{gcc_version}/mpc
+
+  # GMP
+  %setup -q -T -D -n %{name}-%{version} -a22
+  cd gmp-%{gmp_version}
+  %{?patch22:%patch22 -p1}
+  cd ..
+  # Build GMP one-tree style
+  ln -s ../gmp-%{gmp_version} gcc-%{gcc_version}/gmp
+
+  echo "%{gcc_version_message}" > gcc-%{gcc_version}/gcc/DEV-PHASE
+
+  # Fix timestamps
+  cd gcc-%{gcc_version}
+  contrib/gcc_update --touch
+  cd ..
+
+%build
+  export PATH="%{_bindir}:${PATH}"
+  mkdir -p build
+  cd build
+  languages="c"
+%if %{enable_cxx}
+  languages="$languages,c++"
+%endif
+%if "%{_build}" != "%{_host}"
+  CFLAGS_FOR_BUILD="-g -O2 -Wall" \
+  CC="%{_host}-gcc ${SB_OPT_FLAGS}" \
+%else
+  # gcc is not ready to be compiled with -std=gnu99
+  CC=$(echo "%{__cc} ${SB_OPT_FLAGS}" | sed -e 's,-std=gnu99 ,,') \
+%endif
+  ../gcc-%{gcc_version}/configure \
+    --prefix=%{_prefix} \
+    --bindir=%{_bindir} \
+    --exec_prefix=%{_exec_prefix} \
+    --includedir=%{_includedir} \
+    --libdir=%{_gcclibdir} \
+    --libexecdir=%{_libexecdir} \
+    --mandir=%{_mandir} \
+    --infodir=%{_infodir} \
+    --datadir=%{_datadir} \
+    --build=%_build --host=%_host \
+    --target=%{_target} \
+    --disable-libstdcxx-pch \
+    --with-gnu-as --with-gnu-ld --verbose \
+    --with-newlib \
+    --with-system-zlib \
+    --disable-nls --without-included-gettext \
+    --disable-win32-registry \
+    --enable-version-specific-runtime-libs \
+    %{?with_lto:--enable-lto}%{!?with_lto:--disable-lto} \
+    %{?with_threads:--enable-threads}%{!?with_threads:--disable-threads} \
+    %{?with_plugin:--enable-plugin}%{!?with_plugin:--disable-plugin} \
+    --enable-newlib-io-c99-formats \
+    %{?with_iconv:--enable-newlib-iconv} \
+%if %{enable_obsolete}
+    --enable-obsolete \
+%endif
+    --enable-languages="$languages"
+
+%if "%_host" != "%_build"
+  # Bug in gcc-3.2.1:
+  # Somehow, gcc doesn't get syslimits.h right for Cdn-Xs
+  mkdir -p gcc/include
+  cp ../gcc-%{gcc_version}/gcc/gsyslimits.h gcc/include/syslimits.h
+%endif
+
+  %{__make} %{?_smp_mflags} all
+  cd ..
+
+%install
+  export PATH="%{_bindir}:${PATH}"
+  rm -rf $SB_BUILD_ROOT
+
+  cd build
+  %{__make} DESTDIR=$SB_BUILD_ROOT install
+  cd ..
+
+  # libiberty doesn't honor --libdir, but always installs to a
+  # magically guessed _libdir
+  rm -f ${SB_BUILD_ROOT}%{_libdir}/libiberty.a
+
+  # We use the version from binutils
+  rm -f $SB_BUILD_ROOT%{_bindir}/%{_target}-c++filt%{_exeext}
+
+  # We don't ship info/dir
+  rm -f $SB_BUILD_ROOT%{_infodir}/dir
+
+  # Don't want libffi's man-pages
+  rm -f $SB_BUILD_ROOT%{_mandir}/man3/*ffi*