1 files changed, 13 insertions, 0 deletions
diff --git a/pkgs/development/tools/parsing/flex/default.fix b/pkgs/development/tools/parsing/flex/default.fix
new file mode 100644
index 0000000000000..605c29db2d223
--- /dev/null
+++ b/pkgs/development/tools/parsing/flex/default.fix
@@ -0,0 +1,13 @@
+{stdenv, fetchurl, yacc}:
+assert !isNull yacc;
+derivation {
+  name = "flex-2.5.4a";
+  system = stdenv.system;
+  builder = ./builder.sh;
+  src = fetchurl {
+    url = ftp://ftp.nluug.nl/pub/gnu/flex/flex-2.5.4a.tar.gz;
+    md5 = "bd8753d0b22e1f4ec87a553a73021adf";
+  };
+  stdenv = stdenv;
+  yacc = yacc;
+}