configure git for safe.directory

Author: mattip

travis-ci/build_steps.sh

@@ -160,6 +160,7 @@ function do_build_lib {
     mkdir -p libs
     start_spinner
     set -x
+    git config --global --add safe.directory '*'
     (cd OpenBLAS \
     && patch_source \
     && make BUFFERSIZE=20 DYNAMIC_ARCH=1 USE_OPENMP=0 NUM_THREADS=64 BINARY=$bitness $interface64_flags $target_flags > /dev/null \