# Makefile for Info-ZIP's UnZip, UnZipSFX and fUnZip using djgpp v2.0, by
# Frank Donahoe.                                 Last updated:  10 Nov 96

# This Makefile is specifically tailored for GNU make and GNU C and
# may not work with a generic Unix-compatible make utility.
# Features used:
# - pattern rules (%.o : %.c, etc.)
# - GNU-specific conditionals and functions  (ifeq, $(patsubst,,),...)
#
# The stand-alone executable requires DPMI services to run.  If running
# in a DOS window under Windows 3.1 or later, the dpmi server is auto-
# matically present.  Under DOS, if a DPMI server is not loaded, the
# program will look for "cwsdpmi.exe."  If found, it will be loaded for
# the duration of the program.
#
# cwsdpmi is a "free" dpmi server written by Charles W. Sandmann
# (sandman@clio.rice.edu).  It may be found, among other sites, on SimTel
# Net at the URL:
#
#   ftp://ftp.simtel.net/pub/simtelnet/gnu/djgpp/v2misc/csdpmi?[b,s].zip
#
# and on its mirrors worldwide.  The latest version as of this writing is 3.
# Archives with the b postscript contain the binaries.  An alternate server
# is found, l.c., in the archive pmode??[b,s].zip.  The latest (960908) is
# v1.1.

# Separators colon and <sp> are used in Unix, semi-colon and <sp> in DOS.
VPATH=. msdos

ifdef NOASM
USE_ASMCRC=
else
USE_ASMCRC=1
endif

# UnZip flags
# LOCAL_UNZIP may be set in AUTOEXEC.BAT or defined in djgpp.env [make].
# See, for example, DOSWILD, in the file INSTALL.

# [make]
# LOCAL_UNZIP=-DDOSWILD
# BUTT=-m486

# BUTT may also be defined to specify the target system.  At present, -m386
# and -m486 are the only supported options.  Either will produce code which
# will run on the other microprocessor, though possibly not so fast.
# In any case, omitting BUTT will result in a slightly smaller executable.

LOC=-DDOS -DUSE_VFAT $(ASMFLG) $(LOCAL_UNZIP)
CC=gcc
LD=$(CC)
CPPFLAGS=-I. $(LOC)
ASFLAGS=$(CPPFLAGS)
CFLAGS=-Wall -O2 $(BUTT) $(CPPFLAGS)

# See INSTALL for discussion of SFX_EXDIR.
# EXDIR=-DSFX_EXDIR

FUN_FLAGS=$(CFLAGS) -DFUNZIP

# Include OFP for a modest decrease in size of unzipsfx.exe.
OFP=-fomit-frame-pointer

SFX_FLAGS=-Wall -O2 $(CPPFLAGS) -DSFX $(EXDIR) $(OFP)
LDFLAGS=-s

# general-purpose stuff
# If cp.exe is not found change to CP=copy /Y    .
CP = cp -f
# If install.exe is not found change to INSTALL=$(CP)   .
INSTALL=install
# The default value of RM is "rm -f"  .  If rm.exe is not found, uncomment
# the following:
# RM=del
# If "djp.exe," which is Laszlo Molnar's executable file packer, is in the
# path, uncomment the three lines found far below containing $(DJP).  The
# executable files will be converted to self-extracting compressed files.
# Look for "djp.exe" in the directory v2misc in the archive mlp???b.zip.
# Do not add the option -s to DJP without making the required changes to
# the targets zipinfo$E and unzipsfx$E.

DJP = djp -bq
E = .exe
O = .o
M=msdos

# defaults for crc32 stuff and system dependent headers
ifdef USE_ASMCRC
ASMFLG = -DASM_CRC
CRC32 = crc_gcc
else
ASMFLG =
CRC32 = crc32
endif

# object files
OBJS1 = unzip$O $(CRC32)$O crctab$O crypt$O envargs$O explode$O
OBJS2 = extract$O fileio$O globals$O inflate$O list$O match$O
OBJS3 = process$O ttyio$O unreduce$O unshrink$O zipinfo$O
OBJS = $(OBJS1) $(OBJS2) $(OBJS3) $M$O

OBJX = unzipsfx$O $(CRC32)$O crctab_$O crypt_$O extract_$O fileio_$O \
	globals_$O inflate_$O match_$O process_$O ttyio_$O $M_$O

OBJF = funzip$O $(CRC32)$O crypt-$O globals-$O inflate-$O ttyio-$O

OBJECTS_ALL = $(sort $(OBJS) $(OBJX) $(OBJF) crc32$O crc_gcc$O)

# Common header files included by all C sources:
UNZIP_H = unzip.h unzpriv.h globals.h msdos/doscfg.h

# executable files
UNZIPS = unzip$E zipinfo$E funzip$E unzipsfx$E

# pattern rules to compile the sources:
%$O : %.c
	$(CC) $(CFLAGS) -c $< -o $@

%-$O: %.c
	$(CC) $(FUN_FLAGS) -c $< -o $@

%_$O: %.c
	$(CC) $(SFX_FLAGS) -c $< -o $@

%sfx$O: %.c
	$(CC) $(SFX_FLAGS) -c $< -o $@

all: unzips

unzips:	unzip$E zipinfo$E funzip$E unzipsfx$E

unzip$E: $(OBJS)
	$(LD) $(LDFLAGS) $(OBJS) -o $@
#	$(DJP) $@

zipinfo$E: unzip$E
	stubify -g $@
	stubedit $@ runfile=unzip argv0=zipinfo

funzip$E: $(OBJF)
	$(LD) $(LDFLAGS) $(OBJF) -o $@
#	$(DJP) $@

unzipsfx$E: $(OBJX)
	$(LD) $(LDFLAGS) $(OBJX) -o $@
#	$(DJP) -s $@

# explicit compilation instructions:

crc_gcc$O: crc_i386.S		# 32bit, GNU AS
	$(CC) $(ASFLAGS) -x assembler-with-cpp -c -o $@ crc_i386.S

# BIN_PATH may be defined in djgpp.env [make] or defined below.  If the
# installation is to the directory containing gcc.exe etc. place the
# following in djgpp.env:

# [make]
# BIN_PATH=%\>;BIN_PATH%%\DJDIR%\bin

# Even if so placed, it can be over-ridden here by, say:
# BIN_PATH=c:\usr\bin

install:  $(UNZIPS)
	-@if not exist $(BIN_PATH)\nul mkdir $(BIN_PATH)
	for %%f in ($(UNZIPS)) do $(INSTALL) %%f $(BIN_PATH)

uninstall:
	for %%f in ($(UNZIPS)) do $(RM) $(BIN_PATH)\%%f

clean:
ifeq ($(firstword $(RM)), del)
	$(RM) *$O
	$(RM) *.~
	$(RM) *.exe
else
	$(RM) $(OBJECTS_ALL) *.~ *.exe
endif

# Source dependencies:
crc_gcc$O:      crc_i386.S
crc32$O:        crc32.c $(UNZIP_H) zip.h
crctab$O:       crctab.c $(UNZIP_H) zip.h
crypt$O:        crypt.c $(UNZIP_H) zip.h crypt.h ttyio.h
crypt-$O:       crypt.c $(UNZIP_H) zip.h crypt.h ttyio.h
envargs$O:      envargs.c $(UNZIP_H)
explode$O:      explode.c $(UNZIP_H)
extract$O:      extract.c $(UNZIP_H) crypt.h
extract_$O:     extract.c $(UNZIP_H) crypt.h
fileio$O:       fileio.c $(UNZIP_H) crypt.h ttyio.h ebcdic.h
funzip$O:       funzip.c $(UNZIP_H) crypt.h ttyio.h tables.h
globals$O:      globals.c $(UNZIP_H)
globals-$O:     globals.c $(UNZIP_H)
inflate$O:      inflate.c inflate.h $(UNZIP_H)
inflate-$O:     inflate.c inflate.h $(UNZIP_H) crypt.h
list$O:         list.c $(UNZIP_H)
match$O:        match.c $(UNZIP_H)
msdos$O:        msdos/msdos.c $(UNZIP_H)
msdos_$O:       msdos/msdos.c $(UNZIP_H)
process$O:      process.c $(UNZIP_H)
process_$O:     process.c $(UNZIP_H)
ttyio$O:        ttyio.c $(UNZIP_H) zip.h crypt.h ttyio.h
ttyio-$O:       ttyio.c $(UNZIP_H) zip.h crypt.h ttyio.h
unreduce$O:     unreduce.c $(UNZIP_H)
unshrink$O:     unshrink.c $(UNZIP_H)
unzip$O:        unzip.c $(UNZIP_H) crypt.h version.h consts.h
unzipsfx$O:     unzip.c $(UNZIP_H) crypt.h version.h consts.h
zipinfo$O:      zipinfo.c $(UNZIP_H)