# Makefile for "less"
#
# Invoked as:
#       make all
#   or  make install
# Plain "make" is equivalent to "make all".
#
# If you add or delete functions, remake funcs.h by doing:
#       make newfuncs
# This depends on the coding convention of function headers looking like:
#       " \t public <function-type> \n <function-name> ( ... ) "
#
# Also provided:
#       make lint       # Runs "lint" on all the sources.
#       make clean      # Removes "less" and the .o files.
#       make clobber    # Pretty much the same as make "clean".


##########################################################################
# System-specific parameters
##########################################################################

# off_t is the type which lseek() returns.
# It is also the type of lseek()'s second argument.
off_t = long

# TERMIO is 1 if your system has /usr/include/termio.h.
# This is normally the case for System 5.
# If TERMIO is 0 your system must have /usr/include/sgtty.h.
# This is normally the case for BSD.
TERMIO = 0

# SIGSETMASK is 1 if your system has the sigsetmask() call.
# This is normally the case only for BSD 4.2,
# not for BSD 4.1 or System 5.
SIGSETMASK = 0


##########################################################################
# Optional and semi-optional features
##########################################################################

# REGCMP is 1 if your system has the regcmp() function.
# This is normally the case for System 5.
# RECOMP is 1 if your system has the re_comp() function.
# This is normally the case for BSD.
# If neither is 1, pattern matching is supported, but without metacharacters.
REGCMP = 0
RECOMP = 0

# SHELL_ESCAPE is 1 if you wish to allow shell escapes.
# (This is possible only if your system supplies the system() function.)
SHELL_ESCAPE = 0

# EDITOR is 1 if you wish to allow editor invocation (the "v" command).
# (This is possible only if your system supplies the system() function.)
# EDIT_PGM is the name of the (default) editor to be invoked.
EDITOR = 1
EDIT_PGM = "vi"

# ONLY_RETURN is 1 if you want RETURN to be the only input which
# will continue past an error message.
# Otherwise, any key will continue past an error message.
ONLY_RETURN = 0


##########################################################################
# Compilation environment.
##########################################################################

# LIBS is the list of libraries needed.
#LIBS = -ltermcap
LIBS = -lc

# INSTALL_LESS is a list of the public versions of less.
# INSTALL_MAN is a list of the public versions of the manual page.
INSTALL_LESS =  /usr/local/less
INSTALL_MAN =   /usr/man/manl/less.l

# OPTIM is passed to the compiler and the loader.
# It is normally "-O" but may be, for example, "-g".
OPTIM = 


##########################################################################
# Files
##########################################################################

SRC1 =  main.c option.c prim.c
SRC2 =  ch.c position.c input.c output.c screen.c \
	prompt.c line.c signal.c help.c io.c ttyin.c command.c version.c
SRC =   $(SRC1) $(SRC2)
OBJ =   main.o option.o prim.o ch.o position.o input.o output.o screen.o\
	signal.o prompt.o line.o help.o io.o ttyin.o command.o version.o


##########################################################################
# Rules
##########################################################################

DEFS = -Damiga=1 -DTERMIO=$(TERMIO) \
	-DSIGSETMASK=$(SIGSETMASK) \
	-Doff_t=$(off_t)\
	-DREGCMP=$(REGCMP) -DRECOMP=$(RECOMP) \
	-DSHELL_ESCAPE=$(SHELL_ESCAPE) \
	-DEDITOR=$(EDITOR) -DEDIT_PGM=$(EDIT_PGM) \
	-DONLY_RETURN=$(ONLY_RETURN)

CFLAGS = $(OPTIM) $(DEFS)


all: less

less: $(OBJ)
	ln $(OPTIM) -o less $(OBJ) $(LIBS)

ram:
	copy df0:lib to ram:
	set CLIB=ram:

install: install_man install_less

install_man: less.l
	for f in $(INSTALL_MAN); do  rm -f $$f; cp less.l $$f;  done
	touch install_man
	
install_less: less
	for f in $(INSTALL_LESS); do  rm -f $$f; cp less $$f;  done
	touch install_less

$(OBJ): less.h funcs.h

lint:
	lint -hp $(DEFS) $(SRC)

newfuncs:
	mv funcs.h funcs.h.OLD
	awk -f mkfuncs.awk $(SRC) >funcs.h

clean:
	rm -f $(OBJ) less

clobber:
	rm -f *.o less install_less install_man

shar:
	shar -v INSTALLATION less.l makefile.* *.h *.awk $(SRC1) > less.shar.a
	shar -v $(SRC2) > less.shar.b