watch: remove

This can be built in the procps-ng/default.nix expression.

pkgs/os-specific/linux/procps-ng/default.nix

@@ -13,7 +13,8 @@ stdenv.mkDerivation rec {
   buildInputs = [ ncurses ];
   nativeBuildInputs = [ pkgconfig ];
 
-  makeFlags = "usrbin_execdir=$(out)/bin";
+  makeFlags = [ "usrbin_execdir=$(out)/bin" ]
+    ++ lib.optionals stdenv.isDarwin [ "watch" "PKG_LDFLAGS="];
 
   enableParallelBuilding = true;
 
@@ -23,12 +24,17 @@ stdenv.mkDerivation rec {
     [ "ac_cv_func_malloc_0_nonnull=yes"
       "ac_cv_func_realloc_0_nonnull=yes" ];
 
+  installPhase = if stdenv.isDarwin then ''
+    install -m 0755 -D watch $out/bin/watch
+    install -m 0644 -D watch.1 $out/share/man/man1/watch.1
+  '' else null;
+
   meta = {
     homepage = https://gitlab.com/procps-ng/procps;
     description = "Utilities that give information about processes using the /proc filesystem";
     priority = 10; # less than coreutils, which also provides "kill" and "uptime"
     license = lib.licenses.gpl2;
-    platforms = lib.platforms.linux ++ lib.platforms.cygwin;
+    platforms = lib.platforms.linux ++ lib.platforms.cygwin ++ lib.platforms.darwin;
     maintainers = [ lib.maintainers.typetetris ];
   };
 }

pkgs/os-specific/linux/procps/watch.nix

@@ -1,25 +0,0 @@
-{ stdenv, fetchurl, ncurses }:
-
-stdenv.mkDerivation {
-  name = "watch-0.2.0";
-
-  src = fetchurl {
-    url = http://procps.sourceforge.net/procps-3.2.8.tar.gz;
-    sha256 = "0d8mki0q4yamnkk4533kx8mc0jd879573srxhg6r2fs3lkc6iv8i";
-  };
-
-  buildInputs = [ ncurses ];
-
-  makeFlags = "watch usrbin_execdir=$(out)/bin" +
-              (if stdenv.isDarwin then " PKG_LDFLAGS=" else "");
-
-  enableParallelBuilding = true;
-
-  installPhase = "mkdir $out; mkdir -p $out/bin; cp -p watch $out/bin";
-
-  meta = {
-    homepage = https://sourceforge.net/projects/procps/;
-    description = "Utility for watch the output of a given command at intervals";
-    platforms = stdenv.lib.platforms.unix;
-  };
-}

pkgs/top-level/all-packages.nix

@@ -14226,8 +14226,6 @@ with pkgs;
   procps-ng = if stdenv.isLinux then callPackage ../os-specific/linux/procps-ng { }
               else unixtools.procps;
 
-  watch = callPackage ../os-specific/linux/procps/watch.nix { };
-
   qemu_kvm = lowPrio (qemu.override { hostCpuOnly = true; });
 
   # See `xenPackages` source for explanations.