makefile problem saving used interpretation used commands biased rule

i have domain makefile arrange structure:

bob:
ifdef debug
    @echo running
endif
    @echo chug chug chug
ifdef debug
    @echo done
endif    

bobit:
    @echo "before"
    @make bob
    @echo "after"

i'm simplifying severely here, echo's indeed non excusable blocks commands there some-more saving stuff, nonetheless captures idea problem.

for technical reasons i don't wish right now, i need absolved submake, nonetheless since echo's paint nontrivial amounts formula i don't wish only duplicate past physique slip place submake.

ideally i'd something this

define bob_body 
ifdef debug
    @echo running
endif
    @echo chug chug chug
ifdef debug
    @echo done
endif
endef

bob:
    $(bob_body)

bobit:
    @echo "before"
    $(bob_body)
    @echo "after"

unfortunately conditionals seem shafting me, furnish "ifdef: management found" errors, i attempted removing around several combinations eval call, nonetheless can't seem figure out proceed work.

how i work? even right proceed approach problem?