pranavjha/text-detector

# Sample makefile for rpng-x / rpng2-x / wpng for SGI using cc and make.
# Greg Roelofs
# Last modified:  7 March 2002
#
#    The programs built by this makefile are described in the book,
#    "PNG:  The Definitive Guide," by Greg Roelofs (O'Reilly and
#    Associates, 1999).  Go buy a copy, eh?  Buy some for friends
#    and family, too.  (Not that this is a blatant plug or anything.)
#
# Invoke this makefile from a shell prompt in the usual way; for example:
#
#    make -f Makefile.sgi
#
# This makefile assumes libpng and zlib have already been built or downloaded
# and are both installed in /usr/local/{include,lib} (as indicated by the
# PNG* and Z* macros below).  Edit as appropriate--choose only ONE each of
# the PNGINC, PNGLIB, ZINC and ZLIB lines.
#
# This makefile builds dynamically linked executables (against libpng and zlib,
# that is), but that can be changed by uncommenting the appropriate PNGLIB and
# ZLIB lines.


# macros --------------------------------------------------------------------

PNGINC = -I/usr/local/include/libpng16
PNGLIB = -L/usr/local/lib -lpng16      # dynamically linked against libpng
#PNGLIB = /usr/local/lib/libpng16.a # statically linked against libpng
# or:
#PNGINC = -I../..
#PNGLIB = -L../.. -lpng
#PNGLIB = ../../libpng.a

ZINC = -I/usr/local/include
ZLIB = -L/usr/local/lib -lz        # dynamically linked against zlib
#ZLIB = /usr/local/lib/libz.a        # statically linked against zlib
#ZINC = -I../zlib
#ZLIB = -L../zlib -lz
#ZLIB = ../../../zlib/libz.a

XINC = -I/usr/include/X11        # old-style, stock X distributions
XLIB = -L/usr/lib/X11 -lX11
#XINC = -I/usr/openwin/include        # Sun workstations (OpenWindows)
#XLIB = -L/usr/openwin/lib -lX11
#XINC = -I/usr/X11R6/include        # new X distributions (XFree86, etc.)
#XLIB = -L/usr/X11R6/lib -lX11

INCS = $(PNGINC) $(ZINC) $(XINC)
RLIBS = $(PNGLIB) $(ZLIB) $(XLIB) -lm
WLIBS = $(PNGLIB) $(ZLIB)

CC = cc
LD = cc
RM = rm -f
# ABI must be the same as that used to build libpng.
ABI =
CPPFLAGS =
CFLAGS = $(ABI) -O -fullwarn $(INCS)
LDFLAGS = $(ABI)
O = .o
E =

RPNG  = rpng-x
RPNG2 = rpng2-x
WPNG  = wpng

ROBJS  = $(RPNG)$(O) readpng$(O)
ROBJS2 = $(RPNG2)$(O) readpng2$(O)
WOBJS  = $(WPNG)$(O) writepng$(O)

EXES = $(RPNG)$(E) $(RPNG2)$(E) $(WPNG)$(E)


# implicit make rules -------------------------------------------------------

.c$(O):
    $(CC) -c $(CPPFLAGS) $(CFLAGS) $<


# dependencies --------------------------------------------------------------

all:  $(EXES)

$(RPNG)$(E): $(ROBJS)
    $(LD) $(LDFLAGS) -o $@ $(ROBJS) $(RLIBS)

$(RPNG2)$(E): $(ROBJS2)
    $(LD) $(LDFLAGS) -o $@ $(ROBJS2) $(RLIBS)

$(WPNG)$(E): $(WOBJS)
    $(LD) $(LDFLAGS) -o $@ $(WOBJS) $(WLIBS)

$(RPNG)$(O):    $(RPNG).c readpng.h
$(RPNG2)$(O):    $(RPNG2).c readpng2.h
$(WPNG)$(O):    $(WPNG).c writepng.h

readpng$(O):    readpng.c readpng.h
readpng2$(O):    readpng2.c readpng2.h
writepng$(O):    writepng.c writepng.h


# maintenance ---------------------------------------------------------------

clean:
    $(RM) $(EXES) $(ROBJS) $(ROBJS2) $(WOBJS)