Correctly add runtime_events_tools

Makefile

@@ -68,7 +68,7 @@ IRMIN_DATA_DIR=/tmp/irmin-data
 
 WRAPPER = $(patsubst run_%,%,$(RUN_BENCH_TARGET))
 
-PACKAGES = sexplib0 re yojson react uuidm cpdf nbcodec minilight cubicle orun rungen
+PACKAGES = sexplib0 re yojson react uuidm cpdf nbcodec minilight cubicle orun rungen runtime_events_tools
 
 ifeq ($(findstring multibench,$(BUILD_BENCH_TARGET)),multibench)
 	PACKAGES +=  lockfree kcas domainslib ctypes
@@ -137,7 +137,8 @@ _opam/%: _opam/opam-init/init.sh ocaml-versions/%.json
 	@{ case "$*" in \
 		*5.1*) opam pin add -n --yes --switch $* sexplib0.v0.15.0 https://github.com/shakthimaan/sexplib0.git#multicore; \
 	esac };
-	opam pin add -n --yes --switch $* runtime_events_tools https://github.com/sadiqj/runtime_events_tools.git
+	opam pin add -n --yes --switch $* runtime_events_tools https://github.com/Firobe/runtime_events_tools.git
+	opam pin add -n --yes --switch $* hdr_histogram https://github.com/Firobe/hdr_histogram_ocaml.git
 	opam pin add -n --yes --switch $* ocamlfind https://github.com/dra27/ocamlfind/archive/lib-layout.tar.gz
 	opam pin add -n --yes --switch $* base.v0.14.3 https://github.com/janestreet/base.git#v0.14.3
 	opam pin add -n --yes --switch $* coq-core https://github.com/ejgallego/coq/archive/refs/tags/multicore-2021-09-29.tar.gz