Merge remote-tracking branch 'origin/sleep'

Makefile

@@ -30,7 +30,7 @@ RUSTLIBS = --extern getopt=build/o/libgetopt.rlib \
 CFLAGS += -I$(SYSEXITS)
 
 .PHONY: all
-all: dj false fop hru intcmp mm npc rpn scrut str strcmp swab true
+all: dj false fop hru intcmp mm npc rpn scrut sleep str strcmp swab true
 
 build:
 	# keep build/include until bindgen(1) has stdin support
@@ -119,6 +119,13 @@ scrut: build/bin/scrut
 build/bin/scrut: src/scrut.c build
 	$(CC) $(CFLAGS) -o $@ src/scrut.c
 
+.PHONY: sleep
+sleep: build/bin/sleep
+build/bin/sleep: src/sleep.rs build rustlibs
+	$(RUSTC) $(RUSTFLAGS) \
+		--extern sysexits=build/o/libsysexits.rlib \
+		-o $@ src/sleep.rs
+
 .PHONY: str
 str: build/bin/str
 build/bin/str: src/str.c build