Message-Id: <199612290409.UAA18713@almond.elite.net>
To: "djgpp AT delorie DOT com" <djgpp AT delorie DOT com>
Subject: Help With Make File
Date: Sat, 28 Dec 96 20:06:22 -0500
From: John Lathrop <lathropj AT elite DOT net>

-- [ From: John Lathrop * EMC.Ver #2.5.02 ] --

Hello,

I'm new to djgpp and makefiles.  I've been using the makefile at the bottom
of this message as a learning example.  I can follow this through completely
but I have several questions (problems) that I hope someone can answer.

1. libtap.a is created by the following:

	libtap.a                : $(UTIL_OBJS)
		ar -r $@ $^

but, I get the message "d:/djgpp/bin\ld.exe: cannot open -ltap: No such file
or directory (ENOENT)".  Nevertheless, everything works when I copy libtap.a
to d:/djgpp/lib/.

2. Related to the above problem, isn't the following supposed to force a
search of the current directory for libtap.a:

	L_PARAMS=-Wall -I./ $(DEBUG) -o

	exec/%.exe              : objs/%.o libtap.a
		gcc $(L_PARAMS) $@ $< -lalleg -ltap

*************The Makefile Follows*****************

UTIL_OBJS=objs/any_rect.o objs/ugouraud.o objs/map_bmp.o \
	  objs/ushsetup.o objs/shade_r.o objs/over_bmp.o \
	  objs/overrect.o

OBJS=objs/tengine.o objs/tg.o objs/tshade.o objs/tover.o \
     objs/makeshad.o objs/makedat.o

OPTIM=-m486 -O6
#OPTIM=-O

#DEBUG=-g
DEBUG=-s
#DEBUG=-pg

C_PARAMS=-Wall -I./include/ $(DEBUG) 
L_PARAMS=-Wall -I./ $(DEBUG) -o

all                     : dirs objs engine lib gouraud shade over maker
	
dirs                    :
	md exec
	md objs

compress                : exec/tg.exe exec/tengine.exe exec/tshade.exe \
			  exec/tover.exe exec/makeshad.exe exec/makedat.exe
	djp $^ 

objs                    : $(OBJS) $(UTIL_OBJS)

lib                     : libtap.a

gouraud                 : exec/tg.exe

shade                   : exec/tshade.exe

engine                  : exec/tengine.exe

over                    : exec/tover.exe

maker                   : exec/makedat.exe exec/makeshad.exe 

exec/makedat.exe        : objs/makedat.o
	gcc $(L_PARAMS) exec/makedat.exe objs/makedat.o -lalleg
	exec/makedat
	move test.dat exec

exec/makeshad.exe       : objs/makeshad.o libtap.a
	gcc $(L_PARAMS) exec/makeshad.exe objs/makeshad.o -ltap -lalleg
	exec/makeshad
	move tables.dat exec

exec/%.exe              : objs/%.o libtap.a
	gcc $(L_PARAMS) $@ $< -lalleg -ltap

objs/%.o                : src/%.c 
	gcc -c $^ -o $@ $(C_PARAMS) $(OPTIM)

libtap.a                : $(UTIL_OBJS)
	ar -r $@ $^


--
****************************************************
John Lathrop

http://www.elite.net/~lathropj/