diff --git a/rtems/config/4.11/rtems-lm32.bset b/rtems/config/4.11/rtems-lm32.bset
index b5686b9..a6d5622 100644
--- a/rtems/config/4.11/rtems-lm32.bset
+++ b/rtems/config/4.11/rtems-lm32.bset
@@ -18,9 +18,9 @@
 %include rtems-4.11-base.bset
 
 #
-# GCC 4.5.3 building LM32 breaks with multiple make jobs
+# Fix the simulator UART interface.
 #
-%undefine _smp_mflags
+%define rtems_gdb_patch3 %{rtems_gdb_patches}/lm32/gdb-sim-lm32uart.diff
 
 #
 # Tools configuration.
@@ -28,6 +28,6 @@
 4.11/rtems-autotools
 devel/expat-2.1.0-1
 tools/rtems-binutils-2.24-1
-tools/rtems-gcc-4.5.3-newlib-2.1.0-1
+tools/rtems-gcc-4.9.0-newlib-2.1.0-1
 tools/rtems-gdb-7.7-1
 tools/rtems-kernel-4.11
diff --git a/rtems/config/tools/rtems-gcc-4.9.0-newlib-2.1.0-1.cfg b/rtems/config/tools/rtems-gcc-4.9.0-newlib-2.1.0-1.cfg
new file mode 100644
index 0000000..00b426e
--- /dev/null
+++ b/rtems/config/tools/rtems-gcc-4.9.0-newlib-2.1.0-1.cfg
@@ -0,0 +1,37 @@
+#
+# GCC 4.9.0., Newlib 2.1.0
+#
+
+%include %{_configdir}/checks.cfg
+%include %{_configdir}/base.cfg
+%include %{_configdir}/versions.cfg
+
+%define gcc_version    4.9.0
+%define newlib_version 2.1.0
+%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
+
+%ifn %{defined with_iconv}
+%define with_iconv 1
+%endif
+
+#
+# Joel's stack_t patch.
+#
+%define rtems_gcc_patch11      %{rtems_newlib_patches}/newlib-sys-signal-20130532.diff
+%define rtems_gcc_patch11_opts -p0
+
+#
+#
+# Manage RTEMS patches
+#
+%include rtems-gcc-patches.cfg
+
+#
+# The gcc/newlib build instructions. We use 4.9 Release 1.
+#
+%include %{_configdir}/gcc-4.9-1.cfg