# top level GNUmakefile for a release
# 
# debugging version, Bob Jacobsen, Oct 1994
# reworked to add general target passdown to subdirs, Mar 95
# removed FrameExample default link step (see TODO) BobJ June 95
# don't do dbx if gnbase is r/o Bill Lockman Mar 1996
# M.Ronan  July 96	Add commissioning detectors to include and bin lists.
#
# targets defined:
#
#    installdirs   create needed directories
#
#    all       equivalent to 'lib', followed by 'bin'
#              lib & bin are expected to do the usual things in
#              all the subdirectories, so this is the usual build command
#
#    cold      used when making a production release; builds the
#              needed binary executables first
#
#    foo.bar   gmake the 'bar' target in the 'foo' subdirectory
#    bar       'gmake bar' in all subdirectories
#   (where foo and bar are arbitrary strings not containing a .)
#
#    VERBOSE=yes     Dump of the rules and other verbose output.
#
# Typically, a newly created release within the BaBar system
#  needs a gmake installdirs, followed by one or more gmakes.
#
# One can also do particular directories, like 'gmake stdhep.lib'
#  or 'gmake HepTuple.bin',  or a complete phase like 'gmake lib'
#
# The include path now starts with tmp/$BFARCH, then <>/$BFCURRENT/tmp
# so that locally created include files will be found 
# preferentially
#
#  G. Cooper 19-Nov-1997 Get hardcoded include of arch_spec.mk (for CDF code)
#     from local SoftRelTools/ area, if it exists; if not, then look in $BFDIST.
#  R. Harris 14-Aug-1997 Slayed Hydra process by testing for arch_spec.mk
#     before including it.  Added EXPERIMENT value CDF1 = run 1 (CDF = run 2)
#  R. Harris 3-Jan-1997; fixed argument list length problem for tmp/*/*/* area.
#     On 2nd gmake clean it reports unimportant error, because of no arguments.
#  L. Sexton-Kennedy Sep 27, 1996; added code to determine experiment
#  B. Jacobsen Dec 11, 1995; changed logic for finding $PACKAGES
#          to take (any and only) subdirectories containing a GNUmakefile
#          instead of explicit exception list.  Removed the explicit
#          FrameExample.bin defeat, which should have been limited to
#          LLNL only (other HP sites have bothered to install Tcl)
#
#  T. Wenaus 11/11/95
#  - rule printing and 'entering dir' printing turned off by default.
#    Can be activated via VERBOSE=yes
#
SHELL = /bin/sh
export PWD := $(shell /bin/pwd)

# translation code: regenerate BFARCH if it is AIX1/2 or HP-UXA.
ifeq (AIX1,$(BFARCH))
	oldbfarch=1
endif
ifeq (AIX2,$(BFARCH))
	oldbfarch=1
endif
ifeq (HP-UXA,$(BFARCH))
	oldbfarch=1
endif
ifdef oldbfarch
    uname=$(shell echo `uname`)
    BFARCH=$(uname)$(shell echo `uname -r | cut -c1`)
    ifeq (AIX,$(uname))
	BFARCH=$(uname)$(shell echo `uname -v | cut -c1`)
    endif
    ifeq (HP-UX,$(uname)) 
	ifeq ($(shell echo `uname -r | cut -c3`),0)
		BFARCH=$(uname)$(shell echo `uname -r | cut -c4`)
	else
		BFARCH=$(uname)$(shell echo `uname -r | cut -c3`)
	endif
    endif
    ifeq (OSF1,$(uname)) 
	BFARCH=$(uname)$(shell echo `uname -r | cut -c1-2`)
    endif
endif
# translation code: - end

ifneq ($(VERBOSE),)
  MAKEFLAGS =
else
  MAKEFLAGS = --no-print-directory -s
endif

# are we in cdf?  User must decide. -LSK
EXPERIMENT := $(shell if [ -f .experiment ]; then cat .experiment; else echo BABAR; fi)

# lists of phases to do or skip - these are not strictly
# required (although they should be right), but speed up
# makes of large projects...these are experiment specific
ifeq (BABAR,$(EXPERIMENT))
        skip_include:=	gweed \
		geane unt gnutil gnmisc gnfttk gnbbg \
		gnaero gnbpip gnssvd gndcha gndirc gnmuon gnemca gntrol \
		farfalla CLHEP colias stdhep beget \
		BaBar FrameExample Framework HepTuple SoftRelTools \
		dbin euclid \
		SvtData AtcData IfrData EmcData DrcData DchData \
		AbsEvent AbsEnv AbsTrack BbrGeom
        skip_include+=  gntpcf gnstcd

        skip_lib:= 	SoftRelTools CERNLIB geant jetset
        skip_bin:=	geant gweed \
		geane unt gnutil gnmisc gnfttk gnbbg \
		gnaero gnbpip gndcha gndirc gnmuon gnemca gntrol \
		farfalla CLHEP stdhep beget BaBar \
		Framework HepTuple 
        skip_bin+=	gntpcf gnstcd
endif
ifeq (CDF,$(EXPERIMENT))
        skip_include:= CLHEP BaBar FrameExample Framework SoftRelTools AbsEnv \
                       HepTuple trybos Examples
        skip_lib:=     SoftRelTools
        skip_bin:=     CLHEP BaBar Framework
endif
ifeq (CDF1,$(EXPERIMENT))
        skip_include:= SoftRelTools
        skip_lib:=     SoftRelTools
        skip_bin:=
endif
# patch for problems linking Tcl Main on HP
#ifneq (,$(findstring HP-UX,$(BFARCH)))
#  skip_bin += FrameExample
#endif

# make the correct BFCURRENT value
newCURRENT := $(shell touch .current; cat .current)
ifneq ($(newCURRENT),)
  # if the .current file exists in the release directory, use it
  ifneq ($(BFCURRENT),$(newCURRENT))
     ERROR := $(shell echo This release based on $(shell cat .current), overriding BFCURRENT value of $(BFCURRENT) >& 2)
  endif
  override BFCURRENT := $(newCURRENT)
  export BFCURRENT
endif
# add experiment define -LSK
override CPPFLAGS += -D$(EXPERIMENT)

# Determine if the experiment is either CDF (CDF Run 2) or CDF1 (CDF Run 1)
ifneq (,$(findstring CDF,$(EXPERIMENT)))
  # Get arch_spec.mk, but only if it exists. 
  # Checking is necessary or gmake will spawn another gmake to try and make it,
  # ad infinitum. The Hydra process.
  # Look in local SoftRelTools area first, then try $BFDIST
  ARCH_EXIST = $(shell if [ -f SoftRelTools/arch_spec.mk ]; then echo YES; else echo NO; fi)
  ifeq (YES,$(ARCH_EXIST))
    include SoftRelTools/arch_spec.mk
    override CPPFLAGS += $(DEFINES)
  else
    ARCH_EXIST = $(shell if [ -f $(BFDIST)/releases/$(BFCURRENT)/SoftRelTools/arch_spec.mk ]; then echo YES; else echo NO; fi)
    ifeq (YES,$(ARCH_EXIST))
      include $(BFDIST)/releases/$(BFCURRENT)/SoftRelTools/arch_spec.mk
      override CPPFLAGS += $(DEFINES)
    else
       ERROR := $(shell echo This release does not have $(BFDIST)/releases/$(BFCURRENT)/SoftRelTools/arch_spec.mk >& 2)
    endif
  endif
endif

# set up search order - first the tmp local tree, tmp current, etc
override CPPFLAGS += -I. -I$(PWD)/tmp/$(BFARCH)

ifdef BFCURRENT  
override CPPFLAGS += -I$(BFDIST)/releases/$(BFCURRENT)/tmp/$(BFARCH)
endif

ifndef BFOVERRIDE
BFOVERRIDE = .
endif

# the following four assignments are overrides because they matter so much,
# yet users might want to include various options
override CPPFLAGS += -I$(PWD)/include
override LDFLAGS += -L$(PWD)/lib/$(BFARCH)

ifdef BFCURRENT  
override CPPFLAGS += -I$(BFDIST)/releases/$(BFCURRENT)/include
override LDFLAGS += -L$(BFDIST)/releases/$(BFCURRENT)/lib/$(BFARCH)
endif

libdir = $(PWD)/lib/$(BFARCH)/
bindir = $(PWD)/bin/$(BFARCH)/
includedir = $(PWD)/include/
workdir=$(PWD)/tmp/$(BFARCH)/
mandir = $(PWD)/man/
docdir = $(PWD)/doc/

# force local executables onto end of PATH
export PATH := $(PWD)/bin/$(BFARCH):$(PATH)

# You might want to override the following lines
# with an explicit list in your own, private makefiles

PACKAGES := $(shell /bin/sh -c "for v in *[!~]; do if test -r \$$v/GNUmakefile; then echo \$$v; fi; done")

# This is the default target
#because lib and bin are directories, simple rules do not work?
all:
	@$(MAKE) installdirs
	@$(MAKE) include
	@$(MAKE) dbx
	@$(MAKE) lib
	@$(MAKE) bin

cold:
	@$(MAKE) installdirs
	@if test -d SoftRelTools; then $(MAKE) SoftRelTools.all; fi;
	@if test -d dbin; then $(MAKE) dbin.all; fi;
	@if test -d dbio; then $(MAKE) dbio.all; fi;
	@if test -d dbinPlain; then $(MAKE) dbinPlain.all; fi;
	@if test -d CERNLIB; then $(MAKE) CERNLIB.include; fi;
	@if test -d geant; then $(MAKE) geant.include; fi;
	@if test -d jetset; then $(MAKE) jetset.include; fi;
	@if test -d gnbase; then $(MAKE) gnbase.include; fi;
	@if test -d DbiEvent; then $(MAKE) DbiEvent.include; fi;
	@$(MAKE) all
	@if test -d gnbase; then $(MAKE) gnbase.bin MODE=INTERACTIVE; fi;

# the following two rules are needed because the existing directories
# confuse the more general rule

.PHONY: include lib bin

dbx:
ifeq (CDF,$(EXPERIMENT))
	if [ -f .dbxinit ] ; then \
	verb=Updating; else verb=Creating; fi; \
	echo $$verb source file listing for dbx debugger; \
	echo use $(addprefix $(PWD)/tmp/$(BFARCH)/,$(PACKAGES)) > .dbxinit
else
	if [ -w ./ ] ; then \
	if [ -w gnbase/ ] ; then \
	if [ -f .dbxinit ] ; then \
	verb=Updating; else verb=Creating; fi; \
	echo $$verb source file listing for dbx debugger; \
	echo use $(addprefix $(PWD)/tmp/$(BFARCH)/,$(PACKAGES)) > .dbxinit ; \
	cd gnbase; rm -f .dbxinit; ln -s ../.dbxinit .; fi ; fi  
endif

bin:
	@(true; $(strip $(foreach var,$(filter-out $(skip_bin),$(PACKAGES)),$(MAKE) $(var).$@;)))


lib:
	@(true; $(strip $(foreach var,$(filter-out $(skip_lib),$(PACKAGES)),$(MAKE) $(var).$@;)))

# clean is done locally by emptying directories
# the tmp/*/*/* area has too long an argument list, so xargs is used. R. Harris
#amj-FNAL-9/5/97: do only one Architecture at a time
#amj-FNAL-9/5/97: must be able to handle subdirectories if present for the Kai
#                 C++ compiler.
clean:
	$(RM) -rf bin/$(BFARCH)/*
	$(RM) -rf lib/$(BFARCH)/*
	$(foreach lib,tmp/$(BFARCH)/*,$(RM) -rf $(lib))

# depend is done locally by explicit delete
# note this does not actually remake the .d files - that's
# done at the beginning of the next make
#amj-FNAL-9/5/97: do only one Architecture at a time
#amj-FNAL-9/5/97: must be able to handle subdirectories if present for the Kai
#                 C++ compiler.
depend:
	$(foreach lib,tmp/$(BFARCH)/*,$(RM) $(lib)/*.d)

# include is routinely done for only those packages known to require it
include:
	@(true; $(strip $(foreach var,$(filter-out $(skip_include),$(PACKAGES)),$(MAKE) $(var).$@;)))

# all does not explicitly include check...

installdirs: $(bindir) $(libdir) $(workdir) results \
		$(foreach var,$(PACKAGES),$(workdir)$(var))

results:
	if [ ! -d results ] ; then mkdir results ; fi

.PHONY:	installdirs

$(bindir): 
	if [ ! -d bin ] ; then mkdir bin ; fi
	- mkdir $(bindir)

$(libdir): 
	if [ ! -d lib ] ; then mkdir lib ; fi
	- mkdir $(libdir)

$(workdir): 
	if [ ! -d tmp ] ; then mkdir tmp ; fi
	- mkdir $(workdir)

$(foreach var,$(PACKAGES),$(workdir)$(var)):
	- mkdir $@


.SUFFIXES = 

OVERRIDES = libdir=$(libdir) bindir=$(bindir) LDFLAGS="$(LDFLAGS)" workdir=$(workdir)/$(basename $@)/ -I$(BFOVERRIDE) -I. -I$(PWD)/include -I$(BFDIST)/releases/$(BFCURRENT)/include -I$(BFDIST)/releases/$(BFCURRENT) mandir=$(mandir) docdir=$(docdir) CPPFLAGS="$(CPPFLAGS)" EXPERIMENT="$(EXPERIMENT)"


# this null item is needed to avoid passing it down each time
GNUmakefile:

# anything of the form <package>@<item> means to do a gmake item
# in the package directory - this is a newer form, allowing periods in
# <item> and more than one <package> in the target
$(foreach var,$(PACKAGES),$(var)@%) : 
	echo $@ Not yet functional
#	@$(MAKE) -C $(notdir $(basename $@)) CURPKG=$(notdir $(basename $@)) $(OVERRIDES) $(subst .,,$(suffix $@))

# anything of the form <package>.<item> means to do a gmake item
# in the package directory - this older form is for compatibility
$(foreach var,$(PACKAGES),$(var).%) : 
	@$(MAKE) -C $(notdir $(basename $@)) CURPKG=$(notdir $(basename $@)) $(OVERRIDES) $(subst .,,$(suffix $@))

# any target not recognized gets passed to all subdirectories
# i.e.  gmake foo  means do "gmake foo" in all subdirectories
% :
	@($(strip $(foreach var, $(PACKAGES),$(MAKE) $(var).$@;)))