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Makefile: improve confusing errors in inclusion #492

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Oct 14, 2024
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13 changes: 12 additions & 1 deletion Makefile
Original file line number Diff line number Diff line change
@@ -1,5 +1,16 @@
# Including a Makefile from the visitors package, but making sure
# to give decent errors.

# make src/Ast.processed.ml
include $(shell ocamlfind query visitors)/Makefile.preprocess
_:=$(shell ocamlfind query)
ifneq ($(.SHELLSTATUS),0)
_: $(error "'ocamlfind query' failed, please install OCaml and put it in your PATH)
endif
visitors_root:=$(shell ocamlfind query visitors)
ifneq ($(.SHELLSTATUS),0)
_: $(error "'ocamlfind query visitors' failed, please 'opam install visitors')
endif
include $(visitors_root)/Makefile.preprocess

.PHONY: all minimal clean test pre krmllib install

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