/*
 *   rules to build a library from objects in subdirs 
 *   VF  180897  ArchiveLibraryBuild has been introduced
 *   VF  180897  SubdirLibraryBuild2 has been removed
 *   GF. 180895
 *   VF. 111195  for Windows NT 3.51
 *   VF. 200596  for Windows NT 3.51
 *
 * use this rules with:
 * Imakefile:
 *  SubdirLibraryTarget(libname,subdirlist)
 *  where:   libname:	  name of library to make
 *  	     subdirlist:  list of subdirectories to take $(OBJS) files from
 * 
 * and invoke make with : 
 *   make library 
 * to get library libname up to date.
 *
 *  At the moment ONLY one library per Imakefile/Makefile is allowed.
 * 
 *
 *  make library does:
 *   1) in rule library:
 *      through dependency make shure that libhelp rules is always
 *      followed
 *      when this is back, relaunch make to check if the actual LIBRARY
 *      needs to be rebuild; this cannot be done in the original make,
 *      as checking of stamps is done before the rules are followed,
 *      ie. the library would always be recreated, as we have to follow
 *	the subdirectory rules always. 
 *   2) in rule libhelp:
 *	intermediate thing to allow submake to start at this place
 *   3) in rule LOCALSTAMP:
 *	check if local $(OBJS) need recompilation (implicit)
 *	if any object was changed, remove $(STAMP) and 
 *	touch local stamp "LOCALSTAMP".
 *      side effect if there are no objects: create local stamp LOCALSTAMP
 *	
 *   4)	in rule SUBDIRSTAMP:
 *      visit all sub directories and start at 2). $(STAMP) is set to 
 *      "directory/SUBDIRSTAMP" to allow the submake to commucate any
 *	changes back.
 *      if stamp SUBDIRSTAMP was deleted by any of the sub-makes,
 *	remove the $(STAMP), ie, communicate changes back up, and 
 *	touch SUBDIRSTAMP. Note that at the top level
 *      $(STAMP)=LOCALSTAMP, ie. any change in a subdirectory cause
 *	this fiel to disappear, and in turn the $(LIBRARY) to be
 *      recreated through rule 1) and 5)
 *   5) rule $(LIBRARY)
 *      receate $(LIBRARY) when LOCALSTAMP is newer from objects in
 *      subdirs. This may run LOCALSTAMP rule again to create
 *      LOCALSTAMP, if this was deleted.
 *           
 */

/* --------------------------------------------------------------------- */

#define ArchiveLibraryBuild(libname,version)				@@\
LibraryTargetName(libname): version/objects.list			@@\
	@echo rebuild version library $@ in $(CURRENT_DIR)		@@\
	RemoveFile($@)							@@\
	MakeLibrary($@,$(indirectfile)$(VERDIR)objects.list)	

/* --------------------------------------------------------------------- */

#define SubdirLibraryObjects2old(dirs)					@@\
ifeq ($(MAKEOBJECTLIST),1)						@@\
$(VERDIR)objects.list:: $(basename $($(VEROBJS)))			@@\
									@@\
$(basename $($(VEROBJS))):: ;	 @if NOT Quote($@) == "" echo $(addsuffix .Osuf, Win32Path($@)) >> Win32Path( $(VERDIR)objects.list)	@@\
else									@@\
									@@\
$(VERDIR)objects.list:: $(foreach dir,dirs,$(dir)/Makefile)		@@\
									@@\
$(VERDIR)objects.list::	$($(VEROBJS)) Makefile \			@@\
			           $(foreach dir,dirs,$(dir)/$(VERDIR)objects.list) @@\
	@if NOT "$(VERSION)" == "" if NOT EXIST $(VERSION)\NUL  mkdir $(VERSION)	@@\
 	RemoveFile($@)							@@\
	$(MAKE) MAKEOBJECTLIST=1 VERSION=$(VERSION) $(VERDIR)objects.list @@\
        if NOT Quote($(firstword dirs)) == ""		\		@@\
	 for %d in ( Win32Path(dirs) ) do 	\			@@\
	    ( pushd %d &  			\			@@\
	       SedCmd -e "\=^[^\\]=s=^.=%d\\&=" $@ >> Win32Path( ../$@ ) &  \ @@\
	    popd)							@@\
									@@\
$(foreach dir,dirs,$(dir)/$(VERDIR)objects.list)::			@@\
	@ echo checking $(CURRENT_DIR)/FirstDir($@)			@@\
	@ $(MAKE) -C FirstDir($@) VERSION=$(VERSION)	\		@@\
		   $(VERDIR)objects.list				@@\
endif

/* --------------------------------------------------------------------- */

#define SubdirLibraryObjects2(dirs)					@@\
$(foreach ver,Libversions,$(ver)/objects.list):: \			@@\
		$(foreach dir,dirs,$(dir)/Makefile)			@@\
									@@\
define build-object-list						@@\
if NOT Quote($(@D))=="" if NOT EXIST Win32Path($(@D))NUL mkdir Win32Path($(patsubst %/,%,$(@D)))    	@@\
@RemoveFile($@)								@@\
if NOT $(QUOTE)$(strip $(word 1,$($(patsubst %/,%,$(@D))_OBJS)))$(QUOTE) == "" \       @@\
for %f in (Win32Path($($(patsubst %/,%,$(@D))_OBJS))) do echo %f >> Win32Path($@)  	@@\
@if NOT Quote($(firstword dirs)) == ""        		      \		@@\
      for %d in ( Win32Path(dirs) ) do                        \        	@@\
       ( pushd %d & 				              \		@@\
         SedCmd -e "\=^[^\\]=s=^.=%d\\&=" Win32Path($@) >> Win32Path( ../$@ ) & \ 	@@\
         popd )                                                       	@@\
endef									@@\
									@@\
ifeq ($(strip $(VERSION)),archive)					@@\
archive/objects.list:: Makefile $(archive_OBJS) \			@@\
		$(foreach dir,dirs,$(dir)/archive/objects.list)		@@\
	$(build-object-list)						@@\
									@@\
else									@@\
archive/objects.list::							@@\
	$(MAKE) VERSION=archive archive/objects.list			@@\
									@@\
endif									@@\
debug/objects.list:: Makefile $(debug_OBJS) \				@@\
		$(foreach dir,dirs,$(dir)/debug/objects.list) 		@@\
	$(build-object-list)						@@\
									@@\
shared/objects.list:: Makefile $(shared_OBJS) \				@@\
		$(foreach dir,dirs,$(dir)/shared/objects.list) 		@@\
	$(build-object-list)						@@\
									@@\
$(foreach dir,dirs,$(foreach ver,Libversions,$(dir)/$(ver)/objects.list))::@@\
	@ echo checking $(CURRENT_DIR)/FirstDir($@)			@@\
	@ $(MAKE) -C FirstDir($@) VERSION=$(filter Libversions,$(subst /, ,$@))	\		@@\
		   $(patsubst FirstDir($@)/%,%,$@)