use system openblas on aarch64

common_utils.sh

@@ -13,6 +13,7 @@ set -e
 
 MULTIBUILD_DIR=$(dirname "${BASH_SOURCE[0]}")
 if [ $(uname) == "Darwin" ]; then IS_OSX=1; fi
+if [ "$(PLAT)" == "aarch64" ]; then IS_AARCH64=1; fi
 
 # Work round bug in travis xcode image described at
 # https://github.com/direnv/direnv/issues/210

library_builders.sh

@@ -94,6 +94,9 @@ function build_openblas {
     if [ -n "$IS_OSX" ]; then
         brew install openblas
         brew link --force openblas
+    elif [-n "$IS_AARCH64"]; then
+        sudo apt install libopenblas-dev
+        return;
     else
         mkdir -p $ARCHIVE_SDIR
         local plat=${1:-${PLAT:-x86_64}}