diff --git a/makefiles/toolchain_gnu-arm-eabi.mk b/makefiles/toolchain_gnu-arm-eabi.mk
index 3969804535..a8b4f18110 100644
--- a/makefiles/toolchain_gnu-arm-eabi.mk
+++ b/makefiles/toolchain_gnu-arm-eabi.mk
@@ -110,9 +110,7 @@ ARCHOPTIMIZATION	 = $(MAXOPTIMIZATION) \
 			   -fno-strength-reduce \
 			   -fomit-frame-pointer \
 			   -funsafe-math-optimizations \
-			   -fno-builtin-printf \
-			   -ffunction-sections \
-			   -fdata-sections
+			   -fno-builtin-printf
 
 # enable precise stack overflow tracking
 # note - requires corresponding support in NuttX
@@ -166,7 +164,8 @@ ARCHWARNINGSXX		 = $(ARCHWARNINGS) \
 
 # pull in *just* libm from the toolchain ... this is grody
 LIBM			:= $(shell $(CC) $(ARCHCPUFLAGS) -print-file-name=libm.a)
-EXTRA_LIBS		+= $(LIBM)
+LIBC			:= $(shell $(CC) $(ARCHCPUFLAGS) -print-file-name=libc.a)
+EXTRA_LIBS		+= $(LIBM) $(LIBC)
 
 # Flags we pass to the C compiler
 #