Create --config opt for compiling fully optimized binaries.
Change: 144609556
diff --git a/configure b/configure
index 3807904..753841d 100755
--- a/configure
+++ b/configure
@@ -165,7 +165,7 @@
 # Append CC optimization flags to bazel.rc
 echo >> tools/bazel.rc
 for opt in $CC_OPT_FLAGS; do
-  echo "build --cxxopt=$opt --copt=$opt" >> tools/bazel.rc
+  echo "build:opt --cxxopt=$opt --copt=$opt" >> tools/bazel.rc
 done
 
 # Run the gen_git_source to create links where bazel can track dependencies for