What=model
Model=model.awk
Lib=lib.awk
Repeats=10
Era=100
Top=10
Seed=0
Increase=1
Run=run(Com)
Tmp=$(HOME)/tmp/$(USER)/$(What)
Gawk=gawk
Debug=pgawk --profile=$(Tmp)/awkprof.out --dump-variables=$(Tmp)/awkvars.out --lint

########################
Q="\""
Dirp=if [ ! -d $(dir) ];  then  mkdir $(dir); fi;
Dirs=$(HOME)/tmp $(HOME)/tmp/$(USER) $(HOME)/tmp/$(USER)/$(What)
#######################
all : dirs files run

dirs:
	@$(foreach dir, $(Dirs), $(Dirp)  )

files : begins model

model : $(Tmp)/_$(Model) 

begins:
	echo "BEGIN { "                 >  $(Tmp)/begin.awk
	echo "	Repeats=$(Repeats);"    >> $(Tmp)/begin.awk
	echo "	Top=$(Top);"            >> $(Tmp)/begin.awk
	echo "	Era=$(Era);"            >> $(Tmp)/begin.awk
	echo "	Seed=$(Seed); "         >> $(Tmp)/begin.awk
	echo "	Increase=$(Increase); " >> $(Tmp)/begin.awk
	echo "  $(Run)"                 >> $(Tmp)/begin.awk
	echo "}"                        >> $(Tmp)/begin.awk

$(Tmp)/_$(Model) : $(Model)
	m4 -P ./spy.m4 $<  > $@

run :	
	- $(Gawk) -f $(Tmp)/_$(Model)  \
              -f $(Lib) \
              -f unittests.awk  \
		      -f $(Tmp)/begin.awk

epilogue :
	printf  "seed = $(Seed)\ntmp directory = $(Tmp)\n" >&2

demo1  : ; make Run='print 1;' 
demo2  : ; make Run='print $Qhello world$Q' 
demo3  : ; make Run='seeded(); print step();' 
demo20 : ; make Gawk="$(Debug)" Run='print 1' all epilogue 
demo30 : ; make Run='keepTests()'