Index: configure.make
--- configure.make.orig
+++ configure.make
@@ -18,16 +18,9 @@ OCAML_MANDIR = $(MANDIR)
 # OCAMLBUILD_* variables.
 
 OCAMLBUILD_PREFIX ?= $(PREFIX)
-OCAMLBUILD_BINDIR ?= \
-  $(or $(shell opam config var bin 2>/dev/null),\
-       $(PREFIX)/bin)
-OCAMLBUILD_LIBDIR ?= \
-  $(or $(shell opam config var lib 2>/dev/null),\
-       $(shell ocamlfind printconf destdir 2>/dev/null),\
-       $(OCAML_LIBDIR))
-OCAMLBUILD_MANDIR ?= \
-  $(or $(shell opam config var man 2>/dev/null),\
-       $(OCAML_MANDIR))
+OCAMLBUILD_BINDIR ?= $(BINDIR)
+OCAMLBUILD_LIBDIR ?= $(LIBDIR)
+OCAMLBUILD_MANDIR ?= $(MANDIR)
 
 # It is important to distinguish OCAML_LIBDIR, which points to the
 # directory of the ocaml compiler distribution, and OCAMLBUILD_LIBDIR,