diff --git a/Formula/lysp.rb b/Formula/lysp.rb
deleted file mode 100644
index f8a15e9fa8..0000000000
--- a/Formula/lysp.rb
+++ /dev/null
@@ -1,74 +0,0 @@
-class Lysp < Formula
-  desc "Small Lisp interpreter"
-  homepage "http://www.piumarta.com/software/lysp/"
-  url "http://www.piumarta.com/software/lysp/lysp-1.1.tar.gz"
-  sha256 "436a8401f8a5cc4f32108838ac89c0d132ec727239d6023b9b67468485509641"
-  revision 6
-
-  bottle do
-    cellar :any
-    sha256 "9f1474a3af4c8255f59b3da2b8cdba1fca9819be77413f97454024055b6e5084" => :mojave
-    sha256 "e7d9ebdee682743b97380db43b485f61fcd1e16cdd947644d0c28b3421be5cb6" => :high_sierra
-    sha256 "72050185e961e163ac4c722929db03b73a6889d572ca95166134970fa27702ab" => :sierra
-  end
-
-  depends_on "bdw-gc"
-  depends_on "gcc"
-
-  fails_with :clang do
-    cause "use of unknown builtin '__builtin_return'"
-  end
-
-  # Use our CFLAGS
-  patch :DATA
-
-  def install
-    # this option is supported only for ELF object files
-    inreplace "Makefile", "-rdynamic", ""
-
-    system "make", "CC=#{ENV.cc}"
-    bin.install "lysp", "gclysp"
-  end
-
-  test do
-    (testpath/"test.l").write <<~EOS
-      (define println (subr (dlsym "printlnSubr")))
-      (define + (subr (dlsym "addSubr")))
-      (println (+ 40 2))
-    EOS
-
-    assert_equal "42", shell_output("#{bin}/lysp test.l").chomp
-  end
-end
-
-__END__
-diff --git a/Makefile b/Makefile
-index fc3f5d9..0b0e20d 100644
---- a/Makefile
-+++ b/Makefile
-@@ -1,6 +1,3 @@
--CFLAGS  = -O  -g -Wall
--CFLAGSO = -O3 -g -Wall -DNDEBUG
--CFLAGSs = -Os -g -Wall -DNDEBUG
- LDLIBS  = -rdynamic
- 
- all : lysp gclysp
-@@ -10,15 +7,15 @@ lysp : lysp.c gc.c
- 	size $@
- 
- olysp: lysp.c gc.c
--	$(CC) $(CFLAGSO) -DBDWGC=0 -o $@ lysp.c gc.c $(LDLIBS) -ldl
-+	$(CC) $(CFLAGS) -DBDWGC=0 -o $@ lysp.c gc.c $(LDLIBS) -ldl
- 	size $@
- 
- ulysp: lysp.c gc.c
--	$(CC) $(CFLAGSs) -DBDWGC=0 -o $@ lysp.c gc.c $(LDLIBS) -ldl
-+	$(CC) $(CFLAGS) -DBDWGC=0 -o $@ lysp.c gc.c $(LDLIBS) -ldl
- 	size $@
- 
- gclysp: lysp.c
--	$(CC) $(CFLAGSO) -DBDWGC=1  -o $@ lysp.c $(LDLIBS) -lgc
-+	$(CC) $(CFLAGS) -DBDWGC=1  -o $@ lysp.c $(LDLIBS) -lgc
- 	size $@
- 
- run : all