diff --git a/config/optimize b/config/optimize
index 83db6124da..ca84ebb2aa 100644
--- a/config/optimize
+++ b/config/optimize
@@ -18,7 +18,9 @@ fi
 
 if [ "$OPTIMIZATIONS" = size ];then
   GCC_OPTIM="$GCC_OPTIM -Os"
-  LD_OPTIM=""
+  GCC_OPTIM="$GCC_OPTIM -fexcess-precision=fast"
+  GCC_OPTIM="$GCC_OPTIM -ffast-math"
+  LD_OPTIM="-Wl,--as-needed"
 fi
 
 if [ "$LTO_SUPPORT" = yes ];then