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# Sample makefile for rpng-win / rpng2-win / wpng using mingw32-gcc and make.
# Greg Roelofs
# Last modified: 2 June 2007
# 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? Well, OK, it's not
# generally for sale anymore, but it's the thought that counts,
# right? (Hint: )
# Invoke this makefile from a DOS-prompt window via:
# make -f Makefile.mingw32
# This makefile assumes libpng and zlib have already been built or downloaded
# and are in subdirectories at the same level as the current subdirectory
# (as indicated by the PNGDIR and ZDIR macros below). It makes no assumptions
# at all about the mingw32 installation tree (W32DIR). Edit as appropriate.
# Note that the names of the dynamic and static libpng and zlib libraries
# used below may change in later releases of the libraries. This makefile
# builds both statically and dynamically linked executables by default.
# (You need only one set, but for testing it can be handy to have both.)
# macros --------------------------------------------------------------------
#PNGDIR = ../..# for libpng-x.y.z/contrib/gregbook builds
PNGDIR = ../libpng-win32
PNGLIBd = $(PNGDIR)/libpng.dll.a # dynamically linked
PNGLIBs = $(PNGDIR)/libpng.a # statically linked, local libpng
#ZDIR = ../../../zlib-win32# for libpng-x.y.z/contrib/gregbook builds
ZDIR = ../zlib-win32
ZLIBd = $(ZDIR)/libzdll.a
ZLIBs = $(ZDIR)/libz.a
# change this to be the path where mingw32 installs its stuff:
W32DIR =
#W32DIR = /usr/local/cross-tools/i386-mingw32msvc
W32INC = -I$(W32DIR)/include
W32LIB = $(W32DIR)/lib/libuser32.a $(W32DIR)/lib/libgdi32.a
CC = gcc
#CC = i386-mingw32msvc-gcc # e.g., Linux -> Win32 cross-compilation
LD = $(CC)
RM = rm -f
# [note that -Wall is a gcc-specific compilation flag ("most warnings on")]
# [-ansi, -pedantic and -W can also be used]
O = .o
E = .exe
RLIBSd = $(PNGLIBd) $(ZLIBd) $(W32LIB) -lm
RLIBSs = $(PNGLIBs) $(ZLIBs) $(W32LIB) -lm
RPNG = rpng-win
RPNG2 = rpng2-win
WPNG = wpng
ROBJSd = $(RPNG)$(O) readpng.pic$(O)
ROBJS2d = $(RPNG2)$(O) readpng2.pic$(O)
WOBJSd = $(WPNG)$(O) writepng.pic$(O)
RPNGs = $(RPNG)-static
RPNG2s = $(RPNG2)-static
WPNGs = $(WPNG)-static
ROBJSs = $(RPNG)$(O) readpng$(O)
ROBJS2s = $(RPNG2)$(O) readpng2$(O)
WOBJSs = $(WPNG)$(O) writepng$(O)
STATIC_EXES = $(RPNGs)$(E) $(RPNG2s)$(E) $(WPNGs)$(E)
# implicit make rules -------------------------------------------------------
$(CC) -c $(CFLAGS) $<
%.pic$(O): %.c
$(CC) -c $(CFLAGS) -DPNG_BUILD_DLL -o $@ $<
# dependencies --------------------------------------------------------------
all: $(EXES)
$(RPNGs)$(E): $(ROBJSs)
$(LD) $(LDFLAGS) -o $@ $(ROBJSs) $(RLIBSs)
$(RPNG)$(E): $(ROBJSd)
$(LD) $(LDFLAGS) -o $@ $(ROBJSd) $(RLIBSd)
$(RPNG2s)$(E): $(ROBJS2s)
$(LD) $(LDFLAGS) -o $@ $(ROBJS2s) $(RLIBSs)
$(RPNG2)$(E): $(ROBJS2d)
$(LD) $(LDFLAGS) -o $@ $(ROBJS2d) $(RLIBSd)
$(WPNGs)$(E): $(WOBJSs)
$(LD) $(LDFLAGS) -o $@ $(WOBJSs) $(WLIBSs)
$(WPNG)$(E): $(WOBJSd)
$(LD) $(LDFLAGS) -o $@ $(WOBJSd) $(WLIBSd)
$(RPNG)$(O): $(RPNG).c readpng.h
$(RPNG2)$(O): $(RPNG2).c readpng2.h
$(WPNG)$(O): $(WPNG).c writepng.h
readpng$(O) readpng.pic$(O): readpng.c readpng.h
readpng2$(O) readpng2.pic$(O): readpng2.c readpng2.h
writepng$(O) writepng.pic$(O): writepng.c writepng.h
# maintenance ---------------------------------------------------------------
$(RM) $(EXES)
$(RM) $(ROBJSs) $(ROBJS2s) $(WOBJSs)
$(RM) $(ROBJSd) $(ROBJS2d) $(WOBJSd)