Trying to include .ocamldep.make will cause it to be generated if it
doesn't exist.
We do not want this during make clean: we would remove it anyway.
Speeds up make clean.
Before (measured on f732240fd3bac25116151db5ddeb7203b62e85ce, July 2022):
```
Parsing
/home/edwin/xen2/tools/ocaml/libs/xl/../../../../tools/libs/light/libxl_types.idl
Parsing
/home/edwin/xen2/tools/ocaml/libs/xl/../../../../tools/libs/light/libxl_types.idl
Parsing
/home/edwin/xen2/tools/ocaml/libs/xl/../../../../tools/libs/light/libxl_types.idl
Parsing
/home/edwin/xen2/tools/ocaml/libs/xl/../../../../tools/libs/light/libxl_types.idl
Parsing
/home/edwin/xen2/tools/ocaml/libs/xl/../../../../tools/libs/light/libxl_types.idl
Performance counter stats for 'make clean -j8 -s' (5 runs):
4.2233 +- 0.0208 seconds time elapsed ( +- 0.49% )
```
After:
```
perf stat -r 5 --null make clean -j8 -s
Performance counter stats for 'make clean -j8 -s' (5 runs):
2.7325 +- 0.0138 seconds time elapsed ( +- 0.51% )
```
No functional change.
Signed-off-by: Edwin Török <edvin.to...@citrix.com>
---
tools/ocaml/Makefile.rules | 2 ++
1 file changed, 2 insertions(+)
diff --git a/tools/ocaml/Makefile.rules b/tools/ocaml/Makefile.rules
index 7e4db457a1..d368308d9b 100644
--- a/tools/ocaml/Makefile.rules
+++ b/tools/ocaml/Makefile.rules
@@ -44,8 +44,10 @@ META: META.in
ALL_OCAML_OBJ_SOURCES=$(addsuffix .ml, $(ALL_OCAML_OBJS))
+ifneq ($(MAKECMDGOALS),clean)
.ocamldep.make: $(ALL_OCAML_OBJ_SOURCES) Makefile
$(OCAML_TOPLEVEL)/Makefile.rules
$(call quiet-command, $(OCAMLDEP) $(ALL_OCAML_OBJ_SOURCES) *.mli
$o,MLDEP,)
+endif
clean: $(CLEAN_HOOKS)
$(Q)rm -f .*.d *.o *.so *.a *.cmo *.cmi *.cma *.cmx *.cmxa *.annot
*.spot *.spit $(LIBS) $(PROGRAMS) $(GENERATED_FILES) .ocamldep.make META
--
2.34.1
