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-rwxr-xr-xci/cmake_common.sh2
1 files changed, 1 insertions, 1 deletions
diff --git a/ci/cmake_common.sh b/ci/cmake_common.sh
index 15ffde2e..aec8a117 100755
--- a/ci/cmake_common.sh
+++ b/ci/cmake_common.sh
@@ -17,7 +17,7 @@
readonly ABSL_GOOGLETEST_COMMIT="8567b09290fe402cf01923e2131c5635b8ed851b"
# Avoid depending on GitHub by looking for a cached copy of the commit first.
-if [[ -r "${KOKORO_GFILE_DIR}/distdir/${ABSL_GOOGLETEST_COMMIT}.zip" ]]; then
+if [[ -r "${KOKORO_GFILE_DIR:-}/distdir/${ABSL_GOOGLETEST_COMMIT}.zip" ]]; then
DOCKER_EXTRA_ARGS="--mount type=bind,source=${KOKORO_GFILE_DIR}/distdir,target=/distdir,readonly ${DOCKER_EXTRA_ARGS:-}"
ABSL_GOOGLETEST_DOWNLOAD_URL="file:///distdir/${ABSL_GOOGLETEST_COMMIT}.zip"
else