Revert "OCaml build: enforce .mli generation to clean-build in parallel"

This reverts commit 32c0288226994dc2a28c9cf6e38eaed3dfdae90c.
The commit prevented scicos compilation

Change-Id: Iaa1fc805b36ccdd88779612e7225e9fea2c1db7b

4 files changed, 26 insertions, 15 deletions

diff --git a/scilab/CHANGES.md b/scilab/CHANGES.md
index 7caeac8..fa69f7c 100644
--- a/scilab/CHANGES.md
+++ b/scilab/CHANGES.md
@@ -62,8 +62,6 @@ To build Scilab from sources, or to build extensions code (Toolboxes):
 * ecj minimal version switched to 4.4.0 (for Java 8 compatibility).
 * `--without-xcos` now only disable Xcos compilation. Xcos graphical interface is disabled using `--without-gui`.
 
-Building the OCaml Scilab files in parallel is supported.
-
 
 Dependencies
 ------------
diff --git a/scilab/modules/scicos/.gitignore b/scilab/modules/scicos/.gitignore
index 4990ee1..f80fec8 100644
--- a/scilab/modules/scicos/.gitignore
+++ b/scilab/modules/scicos/.gitignore
@@ -2,7 +2,6 @@
 
 modelicac
 modelicac.ocamlc
-*.mli
 *.cmi
 *.cma
 *.cmo
diff --git a/scilab/modules/scicos/Makefile.in b/scilab/modules/scicos/Makefile.in
index de65355..d012be4 100644
--- a/scilab/modules/scicos/Makefile.in
+++ b/scilab/modules/scicos/Makefile.in
@@ -3796,25 +3796,32 @@ distclean-local:
 
 @OCAML_TRUE@@XCOS_TRUE@.mly.ml:
 @OCAML_TRUE@@XCOS_TRUE@ $(OCAMLYACC) $<
+@OCAML_TRUE@@XCOS_TRUE@ @rm $*.mli
 
 # Build the binaries, disabling parallel building
 
-@OCAML_TRUE@@XCOS_TRUE@modelicac: $(modelicac_SOURCES) $(MLIS_modelicac) $(MLS_modelicac:.ml=.cmx)
+@OCAML_TRUE@@XCOS_TRUE@modelicac: $(modelicac_SOURCES)
+@OCAML_TRUE@@XCOS_TRUE@ $(MAKE) MAKEFLAGS=-j1 $(MLS_modelicac:.ml=.cmx)
 @OCAML_TRUE@@XCOS_TRUE@ $(OCAMLOPT) -o $@ $(INCLUDE) $(OCAMLOPTFLAGS) $(OCAMLLIBS:.cma=.cmxa) $(MLS_modelicac:.ml=.cmx)
 
-@OCAML_TRUE@@XCOS_TRUE@modelicac.ocamlc: $(modelicac_SOURCES) $(MLIS_modelicac) $(MLS_modelicac:.ml=.cmo)
+@OCAML_TRUE@@XCOS_TRUE@modelicac.ocamlc: $(modelicac_SOURCES)
+@OCAML_TRUE@@XCOS_TRUE@ $(MAKE) MAKEFLAGS=-j1 $(MLS_modelicac:.ml=.cmo)
 @OCAML_TRUE@@XCOS_TRUE@ $(OCAMLC) -o $@ $(INCLUDE) $(OCAMLOPTFLAGS) $(OCAMLLIBS) $(MLS_modelicac:.ml=.cmo)
 
-@OCAML_TRUE@@XCOS_TRUE@XML2Modelica: $(XML2Modelica_SOURCES) $(MLIS_XML2Modelica) $(MLS_XML2Modelica:.ml=.cmx)
+@OCAML_TRUE@@XCOS_TRUE@XML2Modelica: $(XML2Modelica_SOURCES)
+@OCAML_TRUE@@XCOS_TRUE@ $(MAKE) MAKEFLAGS=-j1 $(MLS_XML2Modelica:.ml=.cmx)
 @OCAML_TRUE@@XCOS_TRUE@ $(OCAMLOPT) -o $@ $(INCLUDE) $(OCAMLCFLAGS) $(OCAMLLIBS:.cma=.cmxa) $(MLS_XML2Modelica:.ml=.cmx)
 
-@OCAML_TRUE@@XCOS_TRUE@XML2Modelica.ocamlc: $(XML2Modelica_SOURCES) $(MLIS_XML2Modelica) $(MLS_XML2Modelica:.ml=.cmo)
+@OCAML_TRUE@@XCOS_TRUE@XML2Modelica.ocamlc: $(XML2Modelica_SOURCES)
+@OCAML_TRUE@@XCOS_TRUE@ $(MAKE) MAKEFLAGS=-j1 $(MLS_XML2Modelica:.ml=.cmo)
 @OCAML_TRUE@@XCOS_TRUE@ $(OCAMLC) -o $@ $(INCLUDE) $(OCAMLCFLAGS) $(OCAMLLIBS) $(MLS_XML2Modelica:.ml=.cmo)
 
-@OCAML_TRUE@@XCOS_TRUE@modelicat: $(modelicat_SOURCES) $(MLIS_modelicat) $(MLS_modelicat:.ml=.cmx)
+@OCAML_TRUE@@XCOS_TRUE@modelicat: $(modelicat_SOURCES)
+@OCAML_TRUE@@XCOS_TRUE@ $(MAKE) MAKEFLAGS=-j1 $(MLS_modelicat:.ml=.cmx)
 @OCAML_TRUE@@XCOS_TRUE@ $(OCAMLOPT) -o $@ $(INCLUDE_modelicat) $(OCAMLOPTFLAGS) $(OCAMLLIBS:.cma=.cmxa) $(MLS_modelicat:.ml=.cmx)
 
-@OCAML_TRUE@@XCOS_TRUE@modelicat.ocamlc: $(modelicat_SOURCES) $(MLIS_modelicat) $(MLS_modelicat:.ml=.cmo)
+@OCAML_TRUE@@XCOS_TRUE@modelicat.ocamlc: $(modelicat_SOURCES)
+@OCAML_TRUE@@XCOS_TRUE@ $(MAKE) MAKEFLAGS=-j1 $(MLS_modelicat:.ml=.cmo)
 @OCAML_TRUE@@XCOS_TRUE@ $(OCAMLC) -o $@ $(INCLUDE_modelicat) $(OCAMLOPTFLAGS) $(OCAMLLIBS) $(MLS_modelicat:.ml=.cmo)
 
 #BUILT_SOURCES = depend
diff --git a/scilab/modules/scicos/Makefile.modelica.am b/scilab/modules/scicos/Makefile.modelica.am
index dae2e9e..01fd5f1 100644
--- a/scilab/modules/scicos/Makefile.modelica.am
+++ b/scilab/modules/scicos/Makefile.modelica.am
@@ -148,25 +148,32 @@ SUFFIXES += .ml .mli .mll .mly .cmo .cmi .cmx
 
 .mly.ml:
         $(OCAMLYACC) $<
+        @rm $*.mli
 
 # Build the binaries, disabling parallel building
 
-modelicac: $(modelicac_SOURCES) $(MLIS_modelicac) $(MLS_modelicac:.ml=.cmx)
+modelicac: $(modelicac_SOURCES)
+        $(MAKE) MAKEFLAGS=-j1 $(MLS_modelicac:.ml=.cmx)
         $(OCAMLOPT) -o $@ $(INCLUDE) $(OCAMLOPTFLAGS) $(OCAMLLIBS:.cma=.cmxa) $(MLS_modelicac:.ml=.cmx)
 
-modelicac.ocamlc: $(modelicac_SOURCES) $(MLIS_modelicac) $(MLS_modelicac:.ml=.cmo)
+modelicac.ocamlc: $(modelicac_SOURCES)
+        $(MAKE) MAKEFLAGS=-j1 $(MLS_modelicac:.ml=.cmo)
         $(OCAMLC) -o $@ $(INCLUDE) $(OCAMLOPTFLAGS) $(OCAMLLIBS) $(MLS_modelicac:.ml=.cmo)
 
-XML2Modelica: $(XML2Modelica_SOURCES) $(MLIS_XML2Modelica) $(MLS_XML2Modelica:.ml=.cmx)
+XML2Modelica: $(XML2Modelica_SOURCES)
+        $(MAKE) MAKEFLAGS=-j1 $(MLS_XML2Modelica:.ml=.cmx)
         $(OCAMLOPT) -o $@ $(INCLUDE) $(OCAMLCFLAGS) $(OCAMLLIBS:.cma=.cmxa) $(MLS_XML2Modelica:.ml=.cmx)
 
-XML2Modelica.ocamlc: $(XML2Modelica_SOURCES) $(MLIS_XML2Modelica) $(MLS_XML2Modelica:.ml=.cmo)
+XML2Modelica.ocamlc: $(XML2Modelica_SOURCES)
+        $(MAKE) MAKEFLAGS=-j1 $(MLS_XML2Modelica:.ml=.cmo)
         $(OCAMLC) -o $@ $(INCLUDE) $(OCAMLCFLAGS) $(OCAMLLIBS) $(MLS_XML2Modelica:.ml=.cmo)
 
-modelicat: $(modelicat_SOURCES) $(MLIS_modelicat) $(MLS_modelicat:.ml=.cmx)
+modelicat: $(modelicat_SOURCES)
+        $(MAKE) MAKEFLAGS=-j1 $(MLS_modelicat:.ml=.cmx)
         $(OCAMLOPT) -o $@ $(INCLUDE_modelicat) $(OCAMLOPTFLAGS) $(OCAMLLIBS:.cma=.cmxa) $(MLS_modelicat:.ml=.cmx)
 
-modelicat.ocamlc: $(modelicat_SOURCES) $(MLIS_modelicat) $(MLS_modelicat:.ml=.cmo)
+modelicat.ocamlc: $(modelicat_SOURCES)
+        $(MAKE) MAKEFLAGS=-j1 $(MLS_modelicat:.ml=.cmo)
         $(OCAMLC) -o $@ $(INCLUDE_modelicat) $(OCAMLOPTFLAGS) $(OCAMLLIBS) $(MLS_modelicat:.ml=.cmo)
 
 CLEANFILES = $(BASE_PATH)/*/*.cmi \