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-rw-r--r--development/bed/README3
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diff --git a/development/bed/README b/development/bed/README
index 131653ade950..58a7b6e8bac6 100644
--- a/development/bed/README
+++ b/development/bed/README
@@ -6,6 +6,9 @@ bit-flags, bit-fields, labels, EBCDIC and time_t. Different sizes and
byte orderings are possible. Data types can be used in structures. Other
data formats, filters and procedures can be defined in plugins.
+Optional dependencies: hyperscan and/or re2. These are autodetected at
+build time. bed uses these for faster regular expressions searches.
+
Notes:
- bed starts up in Ascii input mode. Press F7 to switch to "Digit-Hex" entry