CC = gcc -ansi -pedantic -Wall

#
# for full debugging
#
DFLAGS = -DYYDEBUG=1 -DDEBUG=1
#
# for debug without YYDEBUG
#
#DFLAGS = -DDEBUG=1
#
# for no debugging
#
#DFLAGS =

#
# for dbx
#
CFLAGS = $(DFLAGS) -D_POSIX_C_SOURCE=1 -g
#
# optimized code
#
#CFLAGS = $(DFLAGS) -D_POSIX_C_SOURCE=1 -O
#
# no optimize, no dbx
#
#CFLAGS = $(DFLAGS) -D_POSIX_C_SOURCE=1 

HOME = /user/perry/src/m

TXTS = Makefile Makefile.vms m.opt m.prj HISTORY NOTES TODO install.bat \
	README read.me make.bat m.1

YSRC = m.y

LSRC = scan.l

CSRC = main.c stack.c symbol.c rand.c new.c file.c io.c svd.c \
	code.c execute.c m_cmd.c m_fn.c m_mat.c m_proc.c mat.c util.c \
	plot.c version.c

HSRC = m.h mat.h version.h init.h fn_symbol.h matlab.h

SRCS = $(YSRC) $(CSRC) $(HSRC) $(LSRC)

#
# OTHERS are files not needed in Sun Unix
#
# erf.c is needed if the math library does not contain erf() and erfc()
# m.c & y_tab.h are needed for systems without yacc or bison
# scan.c is needed for systems without lex or flex
# alloca.c & allocate.c come from bison-1.19 and are needed for
#  systems without alloca (i.e. VMS)
#
OTHERS = erf.c m.c scan.c y_tab.h alloca.c allocate.c

OBJS = m.o scan.o main.o stack.o symbol.o rand.o new.o file.o io.o svd.o \
	code.o execute.o m_cmd.o m_fn.o m_mat.o m_proc.o mat.o util.o \
	plot.o version.o

TMPS = m.c scan.c y.tab.c y.tab.h y_tab.h y.output m.j update.j \
	yacc.acts yacc.debug yacc.tmp help.j lib.j m.doc \
	m.tar.gz m_doc.tar.gz make.log

m: $(OBJS)
	gcc -o m $(OBJS) -lm

version:
	echo "\"`/usr/5bin/date +%D`\"" >version.h

install: m
	install m /usr/local/bin

docs: m.doc help.j lib.j

m.doc:
	cd help; soelim m.so >$(HOME)/m.doc

help.j:
	cd help; join -j * >$(HOME)/help.j

lib.j:
	cd lib; join -j * >$(HOME)/lib.j

what:
	@echo $(TXTS) $(SRCS) $(OTHERS)

help.txt:
	cd help; for i in * ; do /usr/5bin/echo "\n$$i\n"; cat $$i; done

lib.txt:
	cd lib; for i in * ; do /usr/5bin/echo "\n$$i\n"; cat $$i; done

clean:
	rm -f $(OBJS) $(TMPS) a.out core

clobber: clean
	rm -f m new

lint: m.c y_tab.h
	lint $(DFLAGS) m.c $(CSRC) erf.c

m.c y.tab.h: m.y
#
# -y to use yacc naming conventions
# -v flag to produce verbose y.output file
# -d to produce y.tab.h
#
	bison -y -d -v m.y
#	bison -y -d m.y
#	yacc -d m.y
	mv y.tab.c m.c

y_tab.h: y.tab.h
	-@cmp -s y_tab.h y.tab.h || cp y.tab.h y_tab.h

scan.c: scan.l
	flex -d -t scan.l >scan.c

tar: m.tar.gz m_doc.tar.gz

m.tar.gz: $(TXTS) $(SRCS) $(OTHERS) m.doc
	tar cvhf - $(TXTS) $(SRCS) $(OTHERS) m.doc lib help | \
	  gzip >m.tar.gz

m_doc.tar.gz: m.doc
	tar cvhf - m.doc lib help | gzip >m_doc.tar.gz

m.j: $(TXTS) $(SRCS) $(OTHERS)
	touch new
	join -j $(TXTS) $(SRCS) $(OTHERS) >m.j

update:
	@find $(TXTS) $(SRCS) $(OTHERS) help/* lib/* -newer new -print

update.j: $(TXTS) $(SRCS) $(OTHERS)
	find $(TXTS) $(SRCS) $(OTHERS) help/* lib/* -newer new -print | \
	  join -j >update.j
	touch new

m.h: mat.h y_tab.h
	touch m.h

scan.o: m.h

code.o: code.c m.h
execute.o: execute.c m.h
file.o: file.c m.h
io.o: io.c m.h
m.o: m.c m.h
m_cmd.o: m_cmd.c m.h
m_fn.o: m_fn.c m.h
m_mat.o: m_mat.c m.h
m_proc.o: m_proc.c m.h
main.o: main.c m.h
mat.o: mat.c mat.h
new.o: new.c m.h
plot.o: plot.c
rand.o: rand.c
stack.o: stack.c m.h
svd.o: svd.c mat.h
symbol.o: symbol.c m.h init.h matlab.h
util.o: util.c m.h
version.o: version.c version.h