diff --git a/pkgs/development/compilers/chicken/0001-Introduce-CHICKEN_REPOSITORY_EXTRA.patch b/pkgs/development/compilers/chicken/4/0001-Introduce-CHICKEN_REPOSITORY_EXTRA.patch
similarity index 100%
rename from pkgs/development/compilers/chicken/0001-Introduce-CHICKEN_REPOSITORY_EXTRA.patch
rename to pkgs/development/compilers/chicken/4/0001-Introduce-CHICKEN_REPOSITORY_EXTRA.patch
diff --git a/pkgs/development/compilers/chicken/default.nix b/pkgs/development/compilers/chicken/4/chicken.nix
similarity index 100%
rename from pkgs/development/compilers/chicken/default.nix
rename to pkgs/development/compilers/chicken/4/chicken.nix
diff --git a/pkgs/development/compilers/chicken/4/default.nix b/pkgs/development/compilers/chicken/4/default.nix
new file mode 100644
index 000000000000..8d29c7c9a2b5
--- /dev/null
+++ b/pkgs/development/compilers/chicken/4/default.nix
@@ -0,0 +1,21 @@
+{ newScope } :
+let
+  callPackage = newScope self;
+
+  self = {
+    pkgs = self;
+
+    fetchegg = callPackage ./fetchegg { };
+
+    eggDerivation = callPackage ./eggDerivation.nix { };
+
+    chicken = callPackage ./chicken.nix {
+      bootstrap-chicken = self.chicken.override { bootstrap-chicken = null; };
+    };
+
+    chickenEggs = callPackage ./eggs.nix { };
+
+    egg2nix = callPackage ./egg2nix.nix { };
+  };
+
+in self
diff --git a/pkgs/development/tools/egg2nix/default.nix b/pkgs/development/compilers/chicken/4/egg2nix.nix
similarity index 100%
rename from pkgs/development/tools/egg2nix/default.nix
rename to pkgs/development/compilers/chicken/4/egg2nix.nix
diff --git a/pkgs/development/compilers/chicken/eggDerivation.nix b/pkgs/development/compilers/chicken/4/eggDerivation.nix
similarity index 89%
rename from pkgs/development/compilers/chicken/eggDerivation.nix
rename to pkgs/development/compilers/chicken/4/eggDerivation.nix
index 2a14a997e57d..4dc7ebe66717 100644
--- a/pkgs/development/compilers/chicken/eggDerivation.nix
+++ b/pkgs/development/compilers/chicken/4/eggDerivation.nix
@@ -17,9 +17,8 @@ let
 in
 stdenv.mkDerivation ({
   name = "chicken-${name}";
-  propagatedBuildInputs = buildInputs ++ [ chicken ];
-  propagatedUserEnvPkgs = buildInputs ++ [ chicken ];
-  buildInputs = [ makeWrapper ];
+  propagatedBuildInputs = buildInputs;
+  buildInputs = [ makeWrapper chicken ];
 
   CSC_OPTIONS = stdenv.lib.concatStringsSep " " cscOptions;
 
diff --git a/pkgs/development/tools/egg2nix/chicken-eggs.nix b/pkgs/development/compilers/chicken/4/eggs.nix
similarity index 100%
rename from pkgs/development/tools/egg2nix/chicken-eggs.nix
rename to pkgs/development/compilers/chicken/4/eggs.nix
diff --git a/pkgs/development/tools/egg2nix/chicken-eggs.scm b/pkgs/development/compilers/chicken/4/eggs.scm
similarity index 100%
rename from pkgs/development/tools/egg2nix/chicken-eggs.scm
rename to pkgs/development/compilers/chicken/4/eggs.scm
diff --git a/pkgs/build-support/fetchegg/builder.sh b/pkgs/development/compilers/chicken/4/fetchegg/builder.sh
similarity index 100%
rename from pkgs/build-support/fetchegg/builder.sh
rename to pkgs/development/compilers/chicken/4/fetchegg/builder.sh
diff --git a/pkgs/build-support/fetchegg/default.nix b/pkgs/development/compilers/chicken/4/fetchegg/default.nix
similarity index 100%
rename from pkgs/build-support/fetchegg/default.nix
rename to pkgs/development/compilers/chicken/4/fetchegg/default.nix
diff --git a/pkgs/development/compilers/chicken/overrides.nix b/pkgs/development/compilers/chicken/4/overrides.nix
similarity index 100%
rename from pkgs/development/compilers/chicken/overrides.nix
rename to pkgs/development/compilers/chicken/4/overrides.nix
diff --git a/pkgs/development/compilers/chicken/setup-hook.sh b/pkgs/development/compilers/chicken/4/setup-hook.sh
similarity index 100%
rename from pkgs/development/compilers/chicken/setup-hook.sh
rename to pkgs/development/compilers/chicken/4/setup-hook.sh
diff --git a/pkgs/development/compilers/chicken/5/chicken.nix b/pkgs/development/compilers/chicken/5/chicken.nix
new file mode 100644
index 000000000000..ff0faf408394
--- /dev/null
+++ b/pkgs/development/compilers/chicken/5/chicken.nix
@@ -0,0 +1,62 @@
+{ stdenv, fetchurl, makeWrapper, bootstrap-chicken ? null }:
+
+let
+  version = "5.0.0";
+  platform = with stdenv;
+    if isDarwin then "macosx"
+    else if isCygwin then "cygwin"
+    else if (isFreeBSD || isOpenBSD) then "bsd"
+    else if isSunOS then "solaris"
+    else "linux"; # Should be a sane default
+  lib = stdenv.lib;
+in
+stdenv.mkDerivation {
+  name = "chicken-${version}";
+
+  binaryVersion = 9;
+
+  src = fetchurl {
+    url = "https://code.call-cc.org/releases/${version}/chicken-${version}.tar.gz";
+    sha256 = "15b5yrzfa8aimzba79x7v6y282f898rxqxfxrr446sjx9jwlpfd8";
+  };
+
+  setupHook = lib.ifEnable (bootstrap-chicken != null) ./setup-hook.sh;
+
+  buildFlags = "PLATFORM=${platform} PREFIX=$(out) VARDIR=$(out)/var/lib";
+  installFlags = "PLATFORM=${platform} PREFIX=$(out) VARDIR=$(out)/var/lib";
+
+  buildInputs = [
+    makeWrapper
+  ] ++ (lib.ifEnable (bootstrap-chicken != null) [
+    bootstrap-chicken
+  ]);
+
+  postInstall = ''
+    for f in $out/bin/*
+    do
+      wrapProgram $f \
+        --prefix PATH : ${stdenv.cc}/bin
+    done
+
+    mv $out/var/lib/chicken $out/lib
+    rmdir $out/var/lib
+    rmdir $out/var
+  '';
+
+  # TODO: Assert csi -R files -p '(pathname-file (repository-path))' == binaryVersion
+
+  meta = {
+    homepage = http://www.call-cc.org/;
+    license = stdenv.lib.licenses.bsd3;
+    maintainers = with stdenv.lib.maintainers; [ the-kenny ];
+    platforms = stdenv.lib.platforms.linux; # Maybe other non-darwin Unix
+    description = "A portable compiler for the Scheme programming language";
+    longDescription = ''
+      CHICKEN is a compiler for the Scheme programming language.
+      CHICKEN produces portable and efficient C, supports almost all
+      of the R5RS Scheme language standard, and includes many
+      enhancements and extensions. CHICKEN runs on Linux, macOS,
+      Windows, and many Unix flavours.
+    '';
+  };
+}
diff --git a/pkgs/development/compilers/chicken/5/default.nix b/pkgs/development/compilers/chicken/5/default.nix
new file mode 100644
index 000000000000..8d29c7c9a2b5
--- /dev/null
+++ b/pkgs/development/compilers/chicken/5/default.nix
@@ -0,0 +1,21 @@
+{ newScope } :
+let
+  callPackage = newScope self;
+
+  self = {
+    pkgs = self;
+
+    fetchegg = callPackage ./fetchegg { };
+
+    eggDerivation = callPackage ./eggDerivation.nix { };
+
+    chicken = callPackage ./chicken.nix {
+      bootstrap-chicken = self.chicken.override { bootstrap-chicken = null; };
+    };
+
+    chickenEggs = callPackage ./eggs.nix { };
+
+    egg2nix = callPackage ./egg2nix.nix { };
+  };
+
+in self
diff --git a/pkgs/development/compilers/chicken/5/egg2nix.nix b/pkgs/development/compilers/chicken/5/egg2nix.nix
new file mode 100644
index 000000000000..21e12849b3ad
--- /dev/null
+++ b/pkgs/development/compilers/chicken/5/egg2nix.nix
@@ -0,0 +1,29 @@
+{ stdenv, eggDerivation, fetchFromGitHub, chickenEggs }:
+
+# Note: This mostly reimplements the default.nix already contained in
+# the tarball. Is there a nicer way than duplicating code?
+
+let
+  version = "c5-git";
+in
+eggDerivation {
+  src = fetchFromGitHub {
+    owner = "corngood";
+    repo = "egg2nix";
+    rev = "chicken-5";
+    sha256 = "1vfnhbcnyakywgjafhs0k5kpsdnrinzvdjxpz3fkwas1jsvxq3d1";
+  };
+
+  name = "egg2nix-${version}";
+  buildInputs = with chickenEggs; [
+    args matchable
+  ];
+
+  meta = {
+    description = "Generate nix-expression from CHICKEN scheme eggs";
+    homepage = https://github.com/the-kenny/egg2nix;
+    license = stdenv.lib.licenses.bsd3;
+    platforms = stdenv.lib.platforms.unix;
+    maintainers = [ stdenv.lib.maintainers.the-kenny ];
+  };
+}
diff --git a/pkgs/development/compilers/chicken/5/eggDerivation.nix b/pkgs/development/compilers/chicken/5/eggDerivation.nix
new file mode 100644
index 000000000000..3dc1c4afce98
--- /dev/null
+++ b/pkgs/development/compilers/chicken/5/eggDerivation.nix
@@ -0,0 +1,41 @@
+{ stdenv, chicken, makeWrapper }:
+{ name, src
+, buildInputs ? []
+, chickenInstallFlags ? []
+, cscOptions          ? []
+, ...} @ args:
+
+let
+  overrides = import ./overrides.nix;
+  baseName = (builtins.parseDrvName name).name;
+  override = if builtins.hasAttr baseName overrides
+   then
+     builtins.getAttr baseName overrides
+   else
+     {};
+in
+stdenv.mkDerivation ({
+  name = "chicken-${name}";
+  propagatedBuildInputs = buildInputs;
+  buildInputs = [ makeWrapper chicken ];
+
+  CSC_OPTIONS = stdenv.lib.concatStringsSep " " cscOptions;
+
+  installPhase = ''
+    runHook preInstall
+
+    export CHICKEN_INSTALL_PREFIX=$out
+    export CHICKEN_INSTALL_REPOSITORY=$out/lib/chicken/${toString chicken.binaryVersion}
+    chicken-install ${stdenv.lib.concatStringsSep " " chickenInstallFlags}
+
+    for f in $out/bin/*
+    do
+      wrapProgram $f \
+        --prefix CHICKEN_REPOSITORY_PATH : "$out/lib/chicken/${toString chicken.binaryVersion}/:$CHICKEN_REPOSITORY_PATH" \
+        --prefix CHICKEN_INCLUDE_PATH : "$CHICKEN_INCLUDE_PATH:$out/share/" \
+        --prefix PATH : "$out/bin:${chicken}/bin:$CHICKEN_REPOSITORY_PATH"
+    done
+
+    runHook postInstall
+  '';
+} // (builtins.removeAttrs args ["name" "buildInputs"]) // override)
diff --git a/pkgs/development/compilers/chicken/5/eggs.nix b/pkgs/development/compilers/chicken/5/eggs.nix
new file mode 100644
index 000000000000..04f7551f32d9
--- /dev/null
+++ b/pkgs/development/compilers/chicken/5/eggs.nix
@@ -0,0 +1,91 @@
+{ pkgs, stdenv }:
+rec {
+  inherit (pkgs) eggDerivation fetchegg;
+
+  args = eggDerivation {
+    name = "args-1.6.0";
+
+    src = fetchegg {
+      name = "args";
+      version = "1.6.0";
+      sha256 = "1y9sznh4kxqxvhd8k44bjx0s7xspp52sx4bn8i8i0f8lwch6r2g4";
+    };
+
+    buildInputs = [
+      srfi-1
+      srfi-13
+      srfi-37
+    ];
+  };
+
+  matchable = eggDerivation {
+    name = "matchable-1.0";
+
+    src = fetchegg {
+      name = "matchable";
+      version = "1.0";
+      sha256 = "01vy2ppq3sq0wirvsvl3dh0bwa5jqs1i6rdjdd7pnwj4nncxd1ga";
+    };
+
+    buildInputs = [
+      
+    ];
+  };
+
+  srfi-1 = eggDerivation {
+    name = "srfi-1-0.5";
+
+    src = fetchegg {
+      name = "srfi-1";
+      version = "0.5";
+      sha256 = "0gh1h406xbxwm5gvc5znc93nxp9xjbhyqf7zzga08k5y6igxrlvk";
+    };
+
+    buildInputs = [
+      
+    ];
+  };
+
+  srfi-13 = eggDerivation {
+    name = "srfi-13-0.2";
+
+    src = fetchegg {
+      name = "srfi-13";
+      version = "0.2";
+      sha256 = "0jazbdnn9bjm7wwxqq7xzqxc9zfvaapq565rf1czj6ayl96yvk3n";
+    };
+
+    buildInputs = [
+      srfi-14
+    ];
+  };
+
+  srfi-14 = eggDerivation {
+    name = "srfi-14-0.2";
+
+    src = fetchegg {
+      name = "srfi-14";
+      version = "0.2";
+      sha256 = "13nm4nn1d52nkvhjizy26z3s6q41x1ml4zm847xzf86x1zwvymni";
+    };
+
+    buildInputs = [
+      
+    ];
+  };
+
+  srfi-37 = eggDerivation {
+    name = "srfi-37-1.4";
+
+    src = fetchegg {
+      name = "srfi-37";
+      version = "1.4";
+      sha256 = "17f593497n70gldkj6iab6ilgryiqar051v6azn1szhnm1lk7dwd";
+    };
+
+    buildInputs = [
+      
+    ];
+  };
+}
+
diff --git a/pkgs/development/compilers/chicken/5/eggs.scm b/pkgs/development/compilers/chicken/5/eggs.scm
new file mode 100644
index 000000000000..b743d6e3229d
--- /dev/null
+++ b/pkgs/development/compilers/chicken/5/eggs.scm
@@ -0,0 +1,3 @@
+;; Eggs used by egg2nix
+args
+matchable
diff --git a/pkgs/development/compilers/chicken/5/fetchegg/builder.sh b/pkgs/development/compilers/chicken/5/fetchegg/builder.sh
new file mode 100644
index 000000000000..d9adf510f22d
--- /dev/null
+++ b/pkgs/development/compilers/chicken/5/fetchegg/builder.sh
@@ -0,0 +1,10 @@
+source $stdenv/setup
+
+header "exporting egg ${eggName} (version $version) into $out"
+
+mkdir -p $out
+CHICKEN_EGG_CACHE=. chicken-install -r "${eggName}:${version}"
+rm ${eggName}/{STATUS,TIMESTAMP}
+cp -r ${eggName}/* $out/
+
+stopNest
diff --git a/pkgs/development/compilers/chicken/5/fetchegg/default.nix b/pkgs/development/compilers/chicken/5/fetchegg/default.nix
new file mode 100644
index 000000000000..24bfbd7a30f4
--- /dev/null
+++ b/pkgs/development/compilers/chicken/5/fetchegg/default.nix
@@ -0,0 +1,25 @@
+# Fetches a chicken egg from henrietta using `chicken-install -r'
+# See: http://wiki.call-cc.org/chicken-projects/egg-index-5.html
+
+{ stdenvNoCC, chicken }:
+{ name, version, md5 ? "", sha256 ? "" }:
+
+if md5 != "" then
+  throw "fetchegg does not support md5 anymore, please use sha256"
+else
+stdenvNoCC.mkDerivation {
+  name = "chicken-${name}-export";
+  builder = ./builder.sh;
+  nativeBuildInputs = [ chicken ];
+
+  outputHashAlgo = "sha256";
+  outputHashMode = "recursive";
+  outputHash = sha256;
+
+  inherit version;
+
+  eggName = name;
+
+  impureEnvVars = stdenvNoCC.lib.fetchers.proxyImpureEnvVars;
+}
+
diff --git a/pkgs/development/compilers/chicken/5/overrides.nix b/pkgs/development/compilers/chicken/5/overrides.nix
new file mode 100644
index 000000000000..2c63c0851048
--- /dev/null
+++ b/pkgs/development/compilers/chicken/5/overrides.nix
@@ -0,0 +1,2 @@
+{
+}
diff --git a/pkgs/development/compilers/chicken/5/setup-hook.sh b/pkgs/development/compilers/chicken/5/setup-hook.sh
new file mode 100644
index 000000000000..2447aeb0ceae
--- /dev/null
+++ b/pkgs/development/compilers/chicken/5/setup-hook.sh
@@ -0,0 +1,6 @@
+addChickenRepositoryPath() {
+    addToSearchPathWithCustomDelimiter : CHICKEN_REPOSITORY_PATH "$1/lib/chicken/9/"
+    addToSearchPathWithCustomDelimiter : CHICKEN_INCLUDE_PATH "$1/share/"
+}
+
+addEnvHooks "$targetOffset" addChickenRepositoryPath
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 75c8e4b67caf..64709155d1ba 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -6623,17 +6623,15 @@ in
 
   colm = callPackage ../development/compilers/colm { };
 
-  fetchegg = callPackage ../build-support/fetchegg { };
+  chickenPackages_4 = callPackage ../development/compilers/chicken/4 { };
+  chickenPackages_5 = callPackage ../development/compilers/chicken/5 { };
+  chickenPackages = chickenPackages_5;
 
-  eggDerivation = callPackage ../development/compilers/chicken/eggDerivation.nix { };
-
-  chicken = callPackage ../development/compilers/chicken {
-    bootstrap-chicken = chicken.override { bootstrap-chicken = null; };
-  };
-
-  egg2nix = callPackage ../development/tools/egg2nix {
-    chickenEggs = callPackage ../development/tools/egg2nix/chicken-eggs.nix { };
-  };
+  inherit (chickenPackages)
+    fetchegg
+    eggDerivation
+    chicken
+    egg2nix;
 
   ccl = callPackage ../development/compilers/ccl {
     inherit (buildPackages.darwin) bootstrap_cmds;