#### standard stuff
prefix= $(HOME)/opt/
G=      $(prefix)glance
D=      $$
Tmp=    $G/tmp
Want=   $G/var/want
Dirs=   $G $(Tmp) $G/var $(Want) 
Dirp=   if [ ! -d $d ]; then  mkdir $d; fi;
This=   nothing

#### stuff to define awk usage
Src=     -f $(subst awk , awk -f ,$(Lib)) \
		 -f $(subst awk , awk -f ,$(App)) \
		 --source 
Run=     gawk $(Src)
Debug=   pgawk --dump-variables=$(Tmp)/vars.out $(Src)
Profile= pgawk --profile=$(Tmp)/profile.out     $(Src)

#### run all tests
all  :;  @$(foreach x, $(shell $(MAKE) rules),$(MAKE) $x;)
rules:;  @ gawk -F\: '/^[a-z].*:/ {print $D1}' Makefile 
tests: dirs
	@ $(MAKE) testEngine | tee $(Tmp)/tests.out
	@ echo ""; cut -d\  -f 1 $(Tmp)/tests.out | sort | uniq -c 

#### install stuff
install: ready
	@ cp etc/want $(Want)

#### set up stuff
ready: dirs files

dirs  :; @ $(foreach d, $(Dirs), $(Dirp))
files :  $(Lib) $(App)
	@ touch $(Tmp)/profile.awk

#### generic stuff
# print all vars
globals: ready
	@ $(Debug) 'BEGIN { noop() }'
	@ egrep -v "^[A-Z]*:" $(Tmp)/vars.out

# run "What" and profile the output
profile: ready 
	$(MAKE) Run="$(Profile)" $(What)
	@ cat $(Tmp)/profile.out 	

nothing :; @ echo "usage: make [profile|test] What=something"

#### unit tests
testEngine:   
	@$(foreach x, $(shell $(MAKE) rules),$(MAKE) test What=$x;) 

test : $(Want)/$(What)
	@ $(MAKE) $(What) > $(Tmp)/$(What)
	@ if   diff -s $(Tmp)/$(What) $< > /dev/null ; then \
           echo PASSED $(What) ; \
      else echo FAILED $(What), see got $(Tmp)/$(What); fi\

want :; @ $(MAKE) $(What) | tee $(Want)/$(What)