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-rw-r--r--README7
1 files changed, 6 insertions, 1 deletions
diff --git a/README b/README
index 41cb2d0..9d069d7 100644
--- a/README
+++ b/README
@@ -18,4 +18,9 @@ Boukengine requires the following library packages to build and run:
* `zlib`
* `Lua` 5.1 or later
-Boukengine additionally requires `xcftools` at build time.
+At build time, Boukengine can optionally use a copy of `xcftools`
+installed on the system. However, a copy included with Boukengine is
+used by default and is strongly recommended, as `xcftools` has been
+removed from many modern system distributions and any remaining
+distributions of it may be vulnerable to arbitrary code execution
+vulnerabilities on at least some architectures.