Build genirack subdir when its a geni rack build.

install/GNUmakefile.in

@@ -25,6 +25,8 @@ SRCDIR		= @srcdir@
 TESTBED_SRCDIR	= @top_srcdir@
 OBJDIR		= ..
 SUBDIR		= install
+GENIRACK        = @PROTOGENI_GENIRACK@
+SUBDIRS	        =
 
 include $(OBJDIR)/Makeconf
 
@@ -36,11 +38,15 @@ else
 TARGETS = clrhouse-install
 endif
 
+ifeq ($(GENIRACK),1)
+SUBDIRS		= genirack
+endif
+
 #
 # Force dependencies on the scripts so that they will be rerun through
 # configure if the .in file is changed.
 # 
-all: $(TARGETS)
+all: $(TARGETS) all-subdirs
 
 include $(TESTBED_SRCDIR)/GNUmakerules
 
@@ -53,3 +59,11 @@ install: $(INSTALL_LIBDIR)/libinstall.pm \
 
 clean: 
 	rm -f $(TARGETS)
+
+# How to recursively descend into subdirectories to make general
+# targets such as `all'.
+%.MAKE:
+	@$(MAKE) -C $(dir $@) $(basename $(notdir $@))
+%-subdirs: $(addsuffix /%.MAKE,$(SUBDIRS)) ;
+
+.PHONY:	${SUBDIRS}