wmsm-app: stay at 0.2.1

pkgs/applications/window-managers/windowmaker/dockapps/default.nix

@@ -13,4 +13,6 @@ lib.makeScope pkgs.newScope (self: with self; {
   AlsaMixer-app = callPackage ./AlsaMixer-app.nix { };
 
   wmCalClock = callPackage ./wmCalClock.nix { };
+
+  wmsm-app = callPackage ./wmsm-app.nix { };
 })

pkgs/applications/window-managers/windowmaker/dockapps/wmsm-app.nix

@@ -0,0 +1,43 @@
+{ stdenv, dockapps-sources
+, libX11
+, libXpm
+, libXext
+, libdockapp }:
+
+stdenv.mkDerivation rec {
+  pname = "wmsm.app";
+  version = "0.2.1";
+
+  src = dockapps-sources;
+
+  buildInputs = [ libX11 libXpm libXext libdockapp ];
+
+  setSourceRoot = ''
+    export sourceRoot=$(echo */${pname}/wmsm)
+  '';
+
+  NIX_CFLAGS_COMPILE = "-std=gnu89";
+
+  postPatch = ''
+    substituteInPlace Makefile \
+      --replace "PREFIX	= /usr/X11R6/bin" "" \
+      --replace "/usr/bin/install" "install"
+  '';
+
+  makeFlags = [ "CC=cc" ];
+
+  preInstall = ''
+    runHook preInstall
+    install -d ${placeholder "out"}/bin
+    runHook postInstall
+  '';
+
+  installFlags = [ "PREFIX=${placeholder "out"}/bin" ];
+
+  meta = with stdenv.lib; {
+    description = "System monitor for Windowmaker";
+    homepage = "https://www.dockapps.net/wmsmapp";
+    license = licenses.gpl2;
+    maintainers = [ maintainers.bstrik ];
+  };
+}