CC		= gcc

#CFLAGS		= -g -DGRAY
CFLAGS		= -g

# Home of the installed program
DEST		= .

# System header (/usr/include) files used
EXTHDRS		=

# Header files created for this program
HDRS		=

# Home of header files created for this program
INCLUDE		= /usr/monash/gnu/include

# Flags for use with link-loader; note: these must point to libtkGLX, 
# and the Tk and Tcl libraries.
LDFLAGS		= -L/usr/monash/gnu/lib -L/u/hon/acb/lib-sgi

# Libraries created for this program
LIBS		= -ltkGLX -ltk4.0 -ltcl7.4 -lgl -lX11 -lm

# Name of link-loader to be used
LINKER		= $(CC)

# Name of this make file
MAKEFILE	= Makefile

# List of object files for this program
OBJS		= face-tcl.o face-gl.o face_data.o tkAppInit.o

# Name of this program's executable file
PROGRAM		= tkface

# List of the source files for this program (except header files)
SRCS		= face-tcl.c face-gl.c face_data.c tkAppInit.c

# Rules
.c.o:; $(CC) -c $(CFLAGS) -I$(INCLUDE) $*.c

# Target to link object and create executable in current directory
$(PROGRAM): $(OBJS)
	@echo "Linking $(PROGRAM)..."
	$(LINKER) $(LDFLAGS) $(OBJS) $(LIBS) -o $(PROGRAM)
	@echo "...linking of $(PROGRAM) completed."

# Alternative target to link object and create executable in current directory
all: $(PROGRAM)

# Target to remove non-critical files from directory
clean: 
	@rm -f $(OBJS)

# Target to provide index of functions in source and header files
index: 
	@ctags -wx $(HDRS) $(SRCS)

# Target to install the program in its home
install: $(PROGRAM)
	@echo "Installing $(PROGRAM) in $(DEST)..."
	@install -s $(PROGRAM) $(DEST)
	@echo "...installation of $(PROGRAM) completed."

# Another alternative target to create executable in current directory
program: $(PROGRAM)

# Target to create "tags" file for ex(1) or vi(1)
tags: $(HDRS) $(SRCS)
	@ctags $(HDRS) $(SRCS)

# Target to update installed program
update: $(DEST)/$(PROGRAM)

# Alternative target to update installed program
$(DEST)/$(PROGRAM): $(SRCS) $(LIBS) $(HDRS) $(EXTHDRS)
	@make -f $(MAKEFILE) DEST=$(DEST) install

# Target to reassemble #include dependencies
depend:
	grep '^#[ 	]*include' ${SRCS} |\
	grep -v '<' | \
	sed 's,:[^"]*"\([^"]*\)".*,: $(INCLUDE)/\1,' | \
	sed 's/\.c/.o/' | \
	awk ' { if ($$1 != prev) { print rec; rec = $$0; prev = $$1; } \
		else { if (length(rec $$2) > 78) { print rec; rec = $$0; } \
		       else rec = rec " " $$2 } } \
	      END { print rec } ' > makedep
	echo '/^# DO NOT DELETE THIS LINE/+1,$$d' >eddep
	echo '$$r makedep' >>eddep
	echo 'w' >>eddep
	cp Makefile Makefile.bak
	ed - Makefile < eddep
	rm eddep makedep

# DO NOT DELETE THIS LINE - "make depend" relies on it.