Add -lrt to stateN link commands.

Author: graydon

Makefile.in

@@ -474,24 +474,24 @@ llvmext/%.o: llvmext/%.cpp $(MKFILES)
 ######################################################################
 
 %.stage0$(X): %.stage0.o rt/$(CFG_RUNTIME) stage0/glue.o
-	@$(call E, link [llvm]: $@)
-	$(Q)gcc $(CFG_GCC_CFLAGS) stage0/glue.o -o $@ $< -Lstage0 -lrustrt
+	@$(call E, link [gcc]: $@)
+	$(Q)gcc $(CFG_GCC_CFLAGS) stage0/glue.o -o $@ $< -Lstage0 -Lrt -lrustrt
 	@# dsymutil sometimes fails or prints a warning, but the
 	@# program still runs.  Since it simplifies debugging other
 	@# programs, I\'ll live with the noise.
 	-$(Q)$(DSYMUTIL) $@
 
 %.stage1(X): %.stage1.o rt/$(CFG_RUNTIME) stage1/glue.o
-	@$(call E, link [llvm]: $@)
-	$(Q)gcc $(CFG_GCC_CFLAGS) stage1/glue.o -o $@ $< -Lstage1 -lrustrt
+	@$(call E, link [gcc]: $@)
+	$(Q)gcc $(CFG_GCC_CFLAGS) stage1/glue.o -o $@ $< -Lstage1 -Lrt -lrustrt
 	@# dsymutil sometimes fails or prints a warning, but the
 	@# program still runs.  Since it simplifies debugging other
 	@# programs, I\'ll live with the noise.
 	-$(Q)$(DSYMUTIL) $@
 
 %.stage2(X): %.stage2.o rt/$(CFG_RUNTIME) stage2/glue.o
-	@$(call E, link [llvm]: $@)
-	$(Q)gcc $(CFG_GCC_CFLAGS) stage2/glue.o -o $@ $< -Lstage2 -lrustrt
+	@$(call E, link [gcc]: $@)
+	$(Q)gcc $(CFG_GCC_CFLAGS) stage2/glue.o -o $@ $< -Lstage2 -Lrt -lrustrt
 	@# dsymutil sometimes fails or prints a warning, but the
 	@# program still runs.  Since it simplifies debugging other
 	@# programs, I\'ll live with the noise.