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-rw-r--r--src/ci/docker/README.md7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/ci/docker/README.md b/src/ci/docker/README.md
index a2d83eca24b..872f2c3467d 100644
--- a/src/ci/docker/README.md
+++ b/src/ci/docker/README.md
@@ -16,6 +16,13 @@ for example:
 
 Images will output artifacts in an `obj` dir at the root of a repository.
 
+**NOTE**: Re-using the same `obj` dir with different docker images with
+the same target triple (e.g. `dist-x86_64-linux` and `dist-various-1`)
+may result in strange linker errors, due shared library versions differing between platforms.
+
+If you encounter any issues when using multiple Docker images, try deleting your `obj` directory
+before running your command.
+
 ## Filesystem layout
 
 - Each directory, excluding `scripts` and `disabled`, corresponds to a docker image