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@@ -38,7 +38,8 @@ heavy-duty numerical analysis, EC is not yet the tool for you.
To build EC, you’ll need [our customized version of
Abseil](https://git.benjamin.barenblat.name/ec-abseil/), which is checked in as
a Git submodule. You’ll also need GCC, [Antlr 4](https://www.antlr.org/),
-and [Ninja](https://ninja-build.org/), none of which is checked in; on a Debian
-system, you can run `apt install build-essential ninja-build antlr4
-libantlr4-runtime-dev` to get the packages you need. Fire up `ninja`, wait a
-bit, and you’ll soon have an `ec` binary in the repository root. Enjoy!
+[re2c](https://re2c.org/), and [Ninja](https://ninja-build.org/), none of which
+is checked in; on a Debian system, you can run `apt install build-essential
+ninja-build antlr4 libantlr4-runtime-dev re2c` to get the packages you need.
+Fire up `ninja`, wait a bit, and you’ll soon have an `ec` binary in the
+repository root. Enjoy!