libco-canonical: etc

remove the package as, canonical deleted it. It's not used anymore.

pkgs/development/libraries/libco-canonical/default.nix

@@ -1,39 +0,0 @@
-{ lib, stdenv, fetchFromGitHub, pkg-config }:
-
-with lib;
-
-stdenv.mkDerivation rec {
-  pname = "libco-canonical";
-  version = "20";
-
-  src = fetchFromGitHub {
-    owner = "canonical";
-    repo = "libco";
-    rev = "v${version}";
-    sha256 = "0r5b1r0sxngx349s5a3zkkvfw5by9y492kr34b25gjspzvjchlxq";
-  };
-
-  nativeBuildInputs = [ pkg-config ];
-
-  makeFlags = [ "PREFIX=${placeholder "out"}" ];
-
-  outputs = [ "dev" "out" ];
-
-  patchPhase = ''
-    # upstream project assumes all build products will go into single directory
-    # `$prefix` but we need `includedir` to point to "dev", not "out"
-    #
-    # pkgs/build-support/setup-hooks/multiple-outputs.sh would normally patch
-    # this automatically, but it fails here due to use of absolute paths
-
-    substituteInPlace Makefile \
-      --replace "@includedir@|\$(PREFIX)" "@includedir@|${placeholder "dev"}"
-  '';
-
-  meta = {
-    description = "A cooperative multithreading library written in C89";
-    homepage = "https://github.com/canonical/libco";
-    license = licenses.isc;
-    maintainers = with maintainers; [ wucke13 ];
-  };
-}

pkgs/top-level/aliases.nix

@@ -374,6 +374,7 @@ mapAliases ({
   libindicate-gtk3 = throw "libindacate-gtk2 has been removed from nixpkgs, as it's abandoned and uses deprecated libraries"; # added 2019-12-10
   libindicate-gtk2 = throw "libindacate-gtk3 has been removed from nixpkgs, as it's abandoned and uses deprecated libraries"; # added 2019-12-10
   libcap_progs = libcap.out; # added 2016-04-29
+  libco-canonical = throw "libco-canonical: Canonical deleted the repo, libco-canonical is not used anymore."; # added 2021-05-16
   libdbusmenu_qt5 = libsForQt5.libdbusmenu;  # added 2015-12-19
   libdbusmenu-glib = libdbusmenu; # added 2018-05-01
   liberation_ttf_v1_from_source = liberation_ttf_v1; # added 2018-12-12

pkgs/top-level/all-packages.nix

@@ -15588,8 +15588,6 @@ in
 
   libclxclient = callPackage ../development/libraries/libclxclient  { };
 
-  libco-canonical = callPackage ../development/libraries/libco-canonical { };
-
   libconfuse = callPackage ../development/libraries/libconfuse { };
 
   libcangjie = callPackage ../development/libraries/libcangjie { };