Merge branch 'uuwatch' into 'master'

Port watch from uutils

See merge request redox-os/redox!2098

config/x86_64/ci.toml

@@ -210,6 +210,7 @@ tokei = {}
 ttf-hack = {}
 userutils = {}
 uutils = {}
+uutils-procps = {}
 vim = {}
 vttest = {}
 wayland-rs = {}

recipes/wip/rs/uutils-procps/recipe.toml

@@ -1,6 +1,22 @@
-#TODO not compiled or tested
+#TODO: common libc functions such as getsid
+#TODO: only watch is working
 [source]
 git = "https://github.com/uutils/procps"
 shallow_clone = true
 [build]
-template = "cargo"
+template = "custom"
+script = """
+DYNAMIC_INIT
+# TODO: more features support?
+CARGO_PROFILE_RELEASE_LTO=thin cookbook_cargo --no-default-features --features pmap,slabtop,sysctl,tload,vmstat,watch
+
+BINS=(
+    watch
+)
+
+for bin in "${BINS[@]}"
+do
+  ln -sv procps "${COOKBOOK_STAGE}/usr/bin/$bin"
+done
+"""
+