pulling in the useful parts of Daniel's changes
diff --git a/aos/build/download_externals.sh b/aos/build/download_externals.sh
index 778c358..5b759a8 100755
--- a/aos/build/download_externals.sh
+++ b/aos/build/download_externals.sh
@@ -8,8 +8,8 @@
CROSS_COMPILE=arm-linux-gnueabihf-
-export CC=${CROSS_COMPLIE}gcc-4.7
-export CXX=${CROSS_COMPLIE}g++-4.7
+export CC=${CROSS_COMPILE}gcc-4.7
+export CXX=${CROSS_COMPILE}g++-4.7
export CFLAGS="-mcpu=cortex-a8 -mfpu=neon"
export CXXFLAGS="-mcpu=cortex-a8 -mfpu=neon"
export OBJDUMP=${CROSS_COMPLIE}objdump