cgal_4: drop

cgal_4 has no consumers in nixpkgs, last update was 2020-02-25 and has
since been replaced by cgal 5. remove it from nixpkgs

pkgs/applications/science/misc/gplates/default.nix

@@ -7,7 +7,7 @@
   doxygen,
   graphviz,
   boost,
-  cgal_5,
+  cgal,
   gdal,
   glew,
   gmp,
@@ -32,7 +32,7 @@ let
     enablePython = true;
     inherit python;
   };
-  cgal = cgal_5.override {
+  cgal' = cgal.override {
     boost = boost';
   };
 in
@@ -64,7 +64,7 @@ stdenv.mkDerivation (finalAttrs: {
 
   buildInputs = [
     boost'
-    cgal
+    cgal'
     gdal
     glew
     gmp

pkgs/by-name/op/openscad-unstable/package.nix

@@ -9,7 +9,7 @@
   bison,
   boost,
   cairo,
-  cgal_5,
+  cgal,
   clipper2,
   double-conversion,
   eigen,
@@ -83,7 +83,7 @@ clangStdenv.mkDerivation rec {
       mimalloc
       boost
       cairo
-      cgal_5
+      cgal
       double-conversion
       eigen
       fontconfig

pkgs/development/libraries/CGAL/4.nix

@@ -1,61 +0,0 @@
-{
-  lib,
-  stdenv,
-  fetchurl,
-  fetchpatch,
-  cmake,
-  boost,
-  gmp,
-  mpfr,
-}:
-
-stdenv.mkDerivation rec {
-  version = "4.14.3";
-  pname = "cgal";
-
-  src = fetchurl {
-    url = "https://github.com/CGAL/cgal/releases/download/releases%2FCGAL-${version}/CGAL-${version}.tar.xz";
-    hash = "sha256-W6/nq+hDW+yhehCCBi02M2jsHj8NZYG7DaiwEPs4n+Q=";
-  };
-
-  patches = [
-    ./cgal_path.patch
-
-    # Pull upstream fix for c++17 (gcc-12):
-    #  https://github.com/CGAL/cgal/pull/6109
-    (fetchpatch {
-      name = "gcc-12-prereq.patch";
-      url = "https://github.com/CGAL/cgal/commit/4581f1b7a8e97d1a136830e64b77cdae3546c4bf.patch";
-      relative = "CGAL_Core"; # Upstream slightly reordered directory structure since.
-      sha256 = "sha256-4+7mzGSBwAv5RHBQPAecPPKNN/LQBgvYq5mq+fHAteo=";
-    })
-    (fetchpatch {
-      name = "gcc-12.patch";
-      url = "https://github.com/CGAL/cgal/commit/6680a6e6f994b2c5b9f068eb3014d12ee1134d53.patch";
-      relative = "CGAL_Core"; # Upstream slightly reordered directory structure since.
-      sha256 = "sha256-8kxJDT47jXI9kQNFI/ARWl9JBNS4AfU57/D0tYlgW0M=";
-    })
-  ];
-
-  # note: optional component libCGAL_ImageIO would need zlib and opengl;
-  #   there are also libCGAL_Qt{3,4} omitted ATM
-  buildInputs = [
-    boost
-    gmp
-    mpfr
-  ];
-  nativeBuildInputs = [ cmake ];
-
-  doCheck = false;
-
-  meta = with lib; {
-    description = "Computational Geometry Algorithms Library";
-    homepage = "http://cgal.org";
-    license = with licenses; [
-      gpl3Plus
-      lgpl3Plus
-    ];
-    platforms = platforms.all;
-    maintainers = [ maintainers.raskin ];
-  };
-}

pkgs/top-level/aliases.nix

@@ -201,6 +201,8 @@ mapAliases {
   cargo-espflash = espflash;
   cawbird = throw "cawbird has been abandoned upstream and is broken anyways due to Twitter closing its API";
   certmgr-selfsigned = certmgr; # Added 2023-11-30
+  cgal_4 = throw "cgal_4 has been removed as it is obsolete use cgal instead"; # Added 2024-12-30
+  cgal_5 = cgal; # Added 2024-12-30
   challenger = taler-challenger; # Added 2024-09-04
   check_smartmon = nagiosPlugins.check_smartmon; # Added 2024-05-03
   check_systemd = nagiosPlugins.check_systemd; # Added 2024-05-03

pkgs/top-level/all-packages.nix

@@ -8768,10 +8768,7 @@ with pkgs;
     certbot-dns-route53
   ]);
 
-  # CGAL 5 has API changes
-  cgal_4 = callPackage ../development/libraries/CGAL/4.nix { };
-  cgal_5 = callPackage ../development/libraries/CGAL { };
-  cgal = cgal_5;
+  cgal = callPackage ../development/libraries/CGAL { };
 
   check = callPackage ../development/libraries/check {
     inherit (darwin.apple_sdk.frameworks) CoreServices;