From 9b3774cc90f4106af8aaa786479198a98d7f7f22 Mon Sep 17 00:00:00 2001
From: Peder Bergebakken Sundt <pbsds@hotmail.com>
Date: Fri, 20 Jan 2023 20:50:37 +0100
Subject: [PATCH] gnu-cim: init at 5.1

---
 .../development/compilers/gnu-cim/default.nix | 45 +++++++++++++++++++
 pkgs/top-level/all-packages.nix               |  2 +
 2 files changed, 47 insertions(+)
 create mode 100644 pkgs/development/compilers/gnu-cim/default.nix

diff --git a/pkgs/development/compilers/gnu-cim/default.nix b/pkgs/development/compilers/gnu-cim/default.nix
new file mode 100644
index 000000000000..b1cb9f08597e
--- /dev/null
+++ b/pkgs/development/compilers/gnu-cim/default.nix
@@ -0,0 +1,45 @@
+{ lib
+, stdenv
+, fetchurl
+}:
+
+stdenv.mkDerivation rec {
+  pname = "gnu-cim";
+  version = "5.1";
+
+  outputs = ["out" "lib" "man" "info"];
+
+  src = fetchurl {
+    url = "mirror://gnu/cim/cim-${version}.tar.gz";
+    hash = "sha256-uQcXtm7EAFA73WnlN+i38+ip0QbDupoIoErlc2mgaak=";
+  };
+
+  postPatch = ''
+    for fname in lib/{simulation,simset}.c; do
+      substituteInPlace "$fname" \
+        --replace \
+          '#include "../../lib/cim.h"' \
+          '#include "../lib/cim.h"'
+    done
+  '';
+
+  CFLAGS = lib.optionalString stdenv.cc.isClang "-Wno-return-type";
+
+  doCheck = true;
+
+  meta = with lib; {
+    description = "A GNU compiler for the programming language Simula";
+    longDescription = ''
+      GNU Cim is a compiler for the programming language Simula.
+      It offers a class concept, separate compilation with full type checking,
+      interface to external C routines, an application package for process
+      simulation and a coroutine concept. Commonly used with the Demos for
+      discrete event modelling.
+    '';
+    homepage = "https://www.gnu.org/software/cim/";
+    license = licenses.gpl2;
+    platforms = platforms.all;
+    badPlatforms = [ "aarch64-darwin" ];
+    maintainers = with maintainers; [ pbsds ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 5371bc6b7798..161c596edace 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -7552,6 +7552,8 @@ with pkgs;
 
   gnucap = callPackage ../applications/science/electronics/gnucap { };
 
+  gnu-cim = callPackage ../development/compilers/gnu-cim { };
+
   gnu-cobol = callPackage ../development/compilers/gnu-cobol { };
 
   gnuclad = callPackage ../applications/graphics/gnuclad { };