stl-to-obj: init at 0.3 (#355988)

pkgs/by-name/st/stl-to-obj/package.nix

@@ -0,0 +1,48 @@
+{
+  cmake,
+  fetchFromGitHub,
+  lib,
+  stdenv,
+}:
+
+stdenv.mkDerivation (finalAttrs: {
+  pname = "stl-to-obj";
+  version = "0.3";
+
+  src = fetchFromGitHub {
+    owner = "Neizvestnyj";
+    repo = "stl-to-obj";
+    rev = finalAttrs.version;
+    hash = "sha256-+R7rNpMxKFC7sLYQXZX3Ikb5MqNd57r1M8gma73kCcg=";
+  };
+
+  postPatch = ''
+    # Add missing cstdint include
+    # ref. https://github.com/Neizvestnyj/stl-to-obj/pull/12
+    for filename in \
+      stl2obj/src/mode.cpp \
+      stl2obj/src/obj_to_stl/StlWriter.cpp \
+      stl2obj/src/stl_to_obj/importstl.cpp \
+      stl2obj/src/stl_to_obj/kdtree.h
+    do
+      echo "$(echo '#include <cstdint>'; cat $filename)" > $filename
+    done
+
+    # Install main executable
+    # ref. https://github.com/Neizvestnyj/stl-to-obj/pull/13
+    echo "install(TARGETS stl2obj DESTINATION $""{CMAKE_INSTALL_BINDIR})" >> CMakeLists.txt
+  '';
+
+  nativeBuildInputs = [
+    cmake
+  ];
+
+  meta = {
+    description = "C++ stl to obj file converter and vice versa";
+    homepage = "https://github.com/Neizvestnyj/stl-to-obj";
+    license = lib.licenses.gpl3Only;
+    maintainers = with lib.maintainers; [ nim65s ];
+    mainProgram = "stl2obj";
+    platforms = lib.platforms.all;
+  };
+})