ocaml: install built modules

Previously the install target was having no effect because it ended up
calling the default target in the subdir Makefile instead of the
install target.

Resolve this by tying the tools/ocaml Makefiles into the generic
handling done by tools/Rules.mk.

Other changes arising in one way or another from this:
- Add libs/xl/META.in
- Update .hgignore for META files
- Create leading directories
- Remove existing module before installation in install targer
  (worksaround what appears to be a quirk of "ocamlfind install")
- Use the globally defined $(DESTDIR)
- Move "ocamlfind printfconf destdir" to a common variable,
  repurposing exising unused OCAMLDESTDIR, incorporating $(DESTDIR) at
  the same time.
- Drop a few unused variabe definitions (mainly to avoid deciding if
  $(DESTDIR) made sense for them or not.
- Pass -destdir to ocamlfind in uninstall target for symmetry with
  install target.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>

.hgignore

@@ -292,6 +292,7 @@
 ^tools/ioemu-dir$
 ^tools/ocaml/.*/.*\.annot$
 ^tools/ocaml/.*/.*\.cmx?a$
+^tools/ocaml/.*/META$
 ^tools/ocaml/.*/\.ocamldep\.make$
 ^tools/ocaml/xenstored/oxenstored$
 ^xen/\.banner.*$

tools/ocaml/Makefile

@@ -1,43 +1,19 @@
 XEN_ROOT = ../..
 include $(XEN_ROOT)/tools/Rules.mk
 
-SUBDIRS_LIBS = \
-	libs/uuid libs/mmap \
-	libs/log libs/xc libs/eventchn \
-	libs/xb libs/xs libs/xl
-
 SUBDIRS_PROGRAMS = xenstored
 
-SUBDIRS = $(SUBDIRS_LIBS) $(SUBDIRS_PROGRAMS)
+SUBDIRS = libs $(SUBDIRS_PROGRAMS)
 
 .NOTPARALLEL:
 # targets here must be run in order, otherwise we can try
 # to build programs before the libraries are done
 
 .PHONY: all
-all: build
+all: subdirs-all
 
-.PHONY: build
-build: SUBDIRS
-
-.PHONY: SUBDIRS SUBDIRS_PROGRAMS SUBDIRS_LIBS
-SUBDIRS SUBDIRS_PROGRAMS SUBDIRS_LIBS:
-	@set -e; for d in $($@); do			\
-		echo " === building $$d";		\
-		$(MAKE) --no-print-directory -C $$d;	\
-	done
-
-.PHONY: install install-libs install-program
-install: install-libs install-program
-
-install-program: SUBDIRS_PROGRAMS
-	$(INSTALL_DIR) $(DESTDIR)$(SBINDIR)
-	$(INSTALL_PROG) xenstored/oxenstored $(DESTDIR)$(SBINDIR)
-
-install-libs: SUBDIRS_LIBS
+.PHONY: install
+install: subdirs-install
 
 .PHONY: clean
-clean:
-	@for dir in $(SUBDIRS); do \
-		$(MAKE) --no-print-directory -C $$dir clean; \
-	done
+clean: subdirs-clean

tools/ocaml/common.make

@@ -17,13 +17,8 @@ OCAMLOPTFLAG_G := $(shell $(OCAMLOPT) -h 2>&1 | sed -n 's/^  *\(-g\) .*/\1/p')
 OCAMLOPTFLAGS = $(OCAMLOPTFLAG_G) -ccopt "$(LDFLAGS)" -dtypes $(OCAMLINCLUDE) -cc $(CC) -w F -warn-error F
 OCAMLCFLAGS += -g $(OCAMLINCLUDE) -w F -warn-error F
 
-#LDFLAGS = -cclib -L./
-
-DESTDIR ?= /
 VERSION := 4.1
 
-OCAMLABI = $(shell $(OCAMLC) -version)
-OCAMLLIBDIR = $(shell $(OCAMLC) -where)
-OCAMLDESTDIR ?= $(OCAMLLIBDIR)
+OCAMLDESTDIR ?= $(DESTDIR)$(shell ocamlfind printconf destdir)
 
 o= >$@.new && mv -f $@.new $@

tools/ocaml/libs/Makefile

@@ -0,0 +1,16 @@
+XEN_ROOT = ../../..
+include $(XEN_ROOT)/tools/Rules.mk
+
+SUBDIRS= \
+	uuid mmap \
+	log xc eventchn \
+	xb xs xl
+
+.PHONY: all
+all: subdirs-all
+
+.PHONY: install
+install: subdirs-install
+
+.PHONY: clean
+clean: subdirs-clean

tools/ocaml/libs/eventchn/Makefile

@@ -19,11 +19,13 @@ OCAML_LIBRARY = eventchn
 
 .PHONY: install
 install: $(LIBS) META
-	ocamlfind install -destdir $(DESTDIR)$(shell ocamlfind printconf destdir) -ldconf ignore eventchn META $(INTF) $(LIBS) *.a *.so *.cmx
+	mkdir -p $(OCAMLDESTDIR)
+	ocamlfind remove -destdir $(OCAMLDESTDIR) eventchn
+	ocamlfind install -destdir $(OCAMLDESTDIR) -ldconf ignore eventchn META $(INTF) $(LIBS) *.a *.so *.cmx
 
 .PHONY: uninstall
 uninstall:
-	ocamlfind remove eventchn
+	ocamlfind remove -destdir $(OCAMLDESTDIR) eventchn
 
 include $(TOPLEVEL)/Makefile.rules
 

tools/ocaml/libs/log/Makefile

@@ -32,11 +32,13 @@ syslog.mli : syslog.ml
 
 .PHONY: install
 install: $(LIBS) META
-	ocamlfind install -destdir $(DESTDIR)$(shell ocamlfind printconf destdir) -ldconf ignore log META $(INTF) $(LIBS) *.a *.so *.cmx
+	mkdir -p $(OCAMLDESTDIR)
+	ocamlfind remove -destdir $(OCAMLDESTDIR) log
+	ocamlfind install -destdir $(OCAMLDESTDIR) -ldconf ignore log META $(INTF) $(LIBS) *.a *.so *.cmx
 
 .PHONY: uninstall
 uninstall:
-	ocamlfind remove log
+	ocamlfind remove -destdir $(OCAMLDESTDIR) log
 
 include $(TOPLEVEL)/Makefile.rules
 

tools/ocaml/libs/mmap/Makefile

@@ -18,11 +18,13 @@ OCAML_LIBRARY = mmap
 
 .PHONY: install
 install: $(LIBS) META
-	ocamlfind install -destdir $(DESTDIR)$(shell ocamlfind printconf destdir) -ldconf ignore mmap META $(INTF) $(LIBS) *.a *.so *.cmx
+	mkdir -p $(OCAMLDESTDIR)
+	ocamlfind remove -destdir $(OCAMLDESTDIR) mmap
+	ocamlfind install -destdir $(OCAMLDESTDIR) -ldconf ignore mmap META $(INTF) $(LIBS) *.a *.so *.cmx
 
 .PHONY: uninstall
 uninstall:
-	ocamlfind remove mmap
+	ocamlfind remove -destdir $(OCAMLDESTDIR) mmap
 
 include $(TOPLEVEL)/Makefile.rules
 

tools/ocaml/libs/uuid/Makefile

@@ -17,11 +17,13 @@ OCAML_NOC_LIBRARY = uuid
 
 .PHONY: install
 install: $(LIBS) META
-	ocamlfind install -destdir $(DESTDIR)$(shell ocamlfind printconf destdir) -ldconf ignore uuid META $(INTF) $(LIBS) *.a *.cmx
+	mkdir -p $(OCAMLDESTDIR)
+	ocamlfind remove -destdir $(OCAMLDESTDIR) uuid
+	ocamlfind install -destdir $(OCAMLDESTDIR) -ldconf ignore uuid META $(INTF) $(LIBS) *.a *.cmx
 
 .PHONY: uninstall
 uninstall:
-	ocamlfind remove uuid
+	ocamlfind remove -destdir $(OCAMLDESTDIR) uuid
 
 include $(TOPLEVEL)/Makefile.rules
 

tools/ocaml/libs/xb/Makefile

@@ -33,10 +33,12 @@ OCAML_LIBRARY = xb
 
 .PHONY: install
 install: $(LIBS) META
-	ocamlfind install -destdir $(DESTDIR)$(shell ocamlfind printconf destdir) -ldconf ignore xb META $(INTF) $(LIBS) *.a *.so *.cmx
+	mkdir -p $(OCAMLDESTDIR)
+	ocamlfind remove -destdir $(OCAMLDESTDIR) xb
+	ocamlfind install -destdir $(OCAMLDESTDIR) -ldconf ignore xb META $(INTF) $(LIBS) *.a *.so *.cmx
 
 .PHONY: uninstall
 uninstall:
-	ocamlfind remove xb
+	ocamlfind remove -destdir $(OCAMLDESTDIR) xb
 
 include $(TOPLEVEL)/Makefile.rules

tools/ocaml/libs/xc/Makefile

@@ -20,10 +20,12 @@ libs: $(LIBS)
 
 .PHONY: install
 install: $(LIBS) META
-	ocamlfind install -destdir $(DESTDIR)$(shell ocamlfind printconf destdir) -ldconf ignore xc META $(INTF) $(LIBS) *.a *.so *.cmx
+	mkdir -p $(OCAMLDESTDIR)
+	ocamlfind remove -destdir $(OCAMLDESTDIR) xc
+	ocamlfind install -destdir $(OCAMLDESTDIR) -ldconf ignore xc META $(INTF) $(LIBS) *.a *.so *.cmx
 
 .PHONY: uninstall
 uninstall:
-	ocamlfind remove xc
+	ocamlfind remove -destdir $(OCAMLDESTDIR) xc
 
 include $(TOPLEVEL)/Makefile.rules

tools/ocaml/libs/xl/META.in

@@ -0,0 +1,4 @@
+version = "@VERSION@"
+description = "Xen Toolstack Library"
+archive(byte) = "xl.cma"
+archive(native) = "xl.cmxa"

tools/ocaml/libs/xl/Makefile

@@ -17,10 +17,12 @@ libs: $(LIBS)
 
 .PHONY: install
 install: $(LIBS) META
-	ocamlfind install -destdir $(DESTDIR)$(shell ocamlfind printconf destdir) -ldconf ignore xl META $(INTF) $(LIBS) *.a *.so *.cmx
+	mkdir -p $(OCAMLDESTDIR)
+	ocamlfind remove -destdir $(OCAMLDESTDIR) xl
+	ocamlfind install -destdir $(OCAMLDESTDIR) -ldconf ignore xl META $(INTF) $(LIBS) *.a *.so *.cmx
 
 .PHONY: uninstall
 uninstall:
-	ocamlfind remove xl
+	ocamlfind remove -destdir $(OCAMLDESTDIR) xl
 
 include $(TOPLEVEL)/Makefile.rules

tools/ocaml/libs/xs/Makefile

@@ -33,11 +33,13 @@ OCAML_NOC_LIBRARY = xs
 
 .PHONY: install
 install: $(LIBS) META
-	ocamlfind install -destdir $(DESTDIR)$(shell ocamlfind printconf destdir) -ldconf ignore xs META $(INTF) xs.mli xst.mli xsraw.mli $(LIBS) *.a *.cmx
+	mkdir -p $(OCAMLDESTDIR)
+	ocamlfind remove -destdir $(OCAMLDESTDIR) xs
+	ocamlfind install -destdir $(OCAMLDESTDIR) -ldconf ignore xs META $(INTF) xs.mli xst.mli xsraw.mli $(LIBS) *.a *.cmx
 
 .PHONY: uninstall
 uninstall:
-	ocamlfind remove xs
+	ocamlfind remove -destdir $(OCAMLDESTDIR) xs
 
 include $(TOPLEVEL)/Makefile.rules
 

tools/ocaml/xenstored/Makefile

@@ -52,4 +52,8 @@ all: $(INTF) $(PROGRAMS)
 
 bins: $(PROGRAMS)
 
+install: all
+	$(INSTALL_DIR) $(DESTDIR)$(SBINDIR)
+	$(INSTALL_PROG) oxenstored $(DESTDIR)$(SBINDIR)
+
 include $(OCAML_TOPLEVEL)/Makefile.rules