# /* vim: set filetype=make : */ -*- make -*- 
#################################################################
#
#   _ _ _ _ _                          ((
#  |=|=|=|=|=|.------------------.    _))_
#  |-|-|-|-|-|| all your 'needz' | ___\__/)_
#  |_|_|_|_|_|'------------------. |_|_~~_|_|
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; version 2.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc.,51 Franklin Street, Fifth Floor, Boston, 
# MA 02110-1301, USA.
#################################################################

DESTDIR	=	$(HOME)/opt/
App		=	a
Parts	=	$(shell m4 -P needz.m4 $(App))  $(App)

###################################
Dollar := $$
$(Dollar) := $$
Bin		=	$(DESTDIR)bin
Var		=	$(DESTDIR)var
Tmp		=	$(DESTDIR)tmp
Lib		=	$(DESTDIR)lib
Libs    =   list math misc os string trees
Run		=	$(shell which gawk)
Debug	=	"pgawk --profile=$(Tmp)/$(App)/awkprof.out --dump-variables=$(Tmp)/$(App)/awkvars.out --lint"
Dirs	=	$(DESTDIR) $(Bin) $(Var) $(DESTDIR)/tmp $(DESTDIR)/tmp/$(App)
Dirp    = 	if [ ! -d $(dir) ];  then  mkdir $(dir); fi;
VPATH  	=   ./:$(AWKPATH):$(M4PATH)

##################################


all : installdirs $(Bin)/$(App)

paths :
	make paths1 >> /tmp/aa

paths1 :
	@$(foreach l, $(Libs), echo 'AWKPATH="$(Lib)/$l:$(Dollar)AWKPATH"';)
	@echo 'M4PATH=$(Dollar)M4PATH'

parts :
	@$(foreach p, $(Parts), echo $p;   )

installdirs :
	@$(foreach dir, $(Dirs), $(Dirp)  )

debug : 
	$(MAKE) Run=$(Debug) 

# generate one call to gawk with lots of "-f" commands
call : $(Tmp)/$(App)_call

$(Tmp)/$(App)_call :	$(Parts)
	@echo  $(Run) "\\" > $@
	@$(foreach f, $^, echo "  -f $f \\" >> $@; )
	@echo  -n "   $(Dollar)" >> $@
	@echo "*" >> $@
	@chmod +x $@
	@echo $@

# generate one she bang file with it all
$(Bin)/$(App) : $(Parts) 
	echo "#!$(Run) -f " > $@
	@(cat $^ | m4 -P) >> $@
	chmod +x $@