1# Sample makefile for rpng-win / rpng2-win / wpng using mingw32-gcc and make.
  2# Greg Roelofs
  3# Last modified:  2 June 2007
  4#
  5#	The programs built by this makefile are described in the book,
  6#	"PNG:  The Definitive Guide," by Greg Roelofs (O'Reilly and
  7#	Associates, 1999).  Go buy a copy, eh?  Well, OK, it's not
  8#	generally for sale anymore, but it's the thought that counts,
  9#	right?  (Hint:  http://www.libpng.org/pub/png/book/ )
 10#
 11# Invoke this makefile from a DOS-prompt window via:
 12#
 13#	make -f Makefile.mingw32
 14#
 15# This makefile assumes libpng and zlib have already been built or downloaded
 16# and are in subdirectories at the same level as the current subdirectory
 17# (as indicated by the PNGDIR and ZDIR macros below).  It makes no assumptions
 18# at all about the mingw32 installation tree (W32DIR).  Edit as appropriate.
 19#
 20# Note that the names of the dynamic and static libpng and zlib libraries
 21# used below may change in later releases of the libraries.  This makefile
 22# builds both statically and dynamically linked executables by default.
 23# (You need only one set, but for testing it can be handy to have both.)
 24
 25
 26# macros --------------------------------------------------------------------
 27
 28#PNGDIR = ../..#		for libpng-x.y.z/contrib/gregbook builds
 29PNGDIR = ../libpng-win32
 30PNGINC = -I$(PNGDIR)
 31PNGLIBd = $(PNGDIR)/libpng.dll.a	# dynamically linked
 32PNGLIBs = $(PNGDIR)/libpng.a		# statically linked, local libpng
 33
 34#ZDIR = ../../../zlib-win32#	for libpng-x.y.z/contrib/gregbook builds
 35ZDIR = ../zlib-win32
 36ZINC = -I$(ZDIR)
 37ZLIBd = $(ZDIR)/libzdll.a
 38ZLIBs = $(ZDIR)/libz.a
 39
 40# change this to be the path where mingw32 installs its stuff:
 41W32DIR =
 42#W32DIR = /usr/local/cross-tools/i386-mingw32msvc
 43W32INC = -I$(W32DIR)/include
 44W32LIB = $(W32DIR)/lib/libuser32.a $(W32DIR)/lib/libgdi32.a
 45
 46CC = gcc
 47#CC = i386-mingw32msvc-gcc #	e.g., Linux -> Win32 cross-compilation
 48LD = $(CC)
 49RM = rm -f
 50CPPFLAGS = $(INCS)
 51CFLAGS = -O -Wall $(MINGW_CCFLAGS)
 52# [note that -Wall is a gcc-specific compilation flag ("most warnings on")]
 53# [-ansi, -pedantic and -W can also be used]
 54LDFLAGS = $(MINGW_LDFLAGS)
 55O = .o
 56E = .exe
 57
 58INCS = $(PNGINC) $(ZINC) $(W32INC)
 59RLIBSd = $(PNGLIBd) $(ZLIBd) $(W32LIB) -lm
 60RLIBSs = $(PNGLIBs) $(ZLIBs) $(W32LIB) -lm
 61WLIBSd = $(PNGLIBd) $(ZLIBd)
 62WLIBSs = $(PNGLIBs) $(ZLIBs)
 63
 64RPNG   = rpng-win
 65RPNG2  = rpng2-win
 66WPNG   = wpng
 67
 68ROBJSd  = $(RPNG)$(O) readpng.pic$(O)
 69ROBJS2d = $(RPNG2)$(O) readpng2.pic$(O)
 70WOBJSd  = $(WPNG)$(O) writepng.pic$(O)
 71
 72RPNGs  = $(RPNG)-static
 73RPNG2s = $(RPNG2)-static
 74WPNGs  = $(WPNG)-static
 75
 76ROBJSs  = $(RPNG)$(O) readpng$(O)
 77ROBJS2s = $(RPNG2)$(O) readpng2$(O)
 78WOBJSs  = $(WPNG)$(O) writepng$(O)
 79
 80STATIC_EXES  = $(RPNGs)$(E) $(RPNG2s)$(E) $(WPNGs)$(E)
 81DYNAMIC_EXES = $(RPNG)$(E) $(RPNG2)$(E) $(WPNG)$(E)
 82
 83EXES = $(STATIC_EXES) $(DYNAMIC_EXES)
 84
 85
 86# implicit make rules -------------------------------------------------------
 87
 88.c$(O):
 89	$(CC) -c $(CPPFLAGS) $(CFLAGS) $<
 90
 91%.pic$(O): %.c
 92	$(CC) -c $(CPPFLAGS) $(CFLAGS) -DPNG_BUILD_DLL -o $@ $<
 93
 94
 95# dependencies --------------------------------------------------------------
 96
 97all:  $(EXES)
 98
 99$(RPNGs)$(E): $(ROBJSs)
100	$(LD) $(LDFLAGS) -o $@ $(ROBJSs) $(RLIBSs)
101
102$(RPNG)$(E): $(ROBJSd)
103	$(LD) $(LDFLAGS) -o $@ $(ROBJSd) $(RLIBSd)
104
105$(RPNG2s)$(E): $(ROBJS2s)
106	$(LD) $(LDFLAGS) -o $@ $(ROBJS2s) $(RLIBSs)
107
108$(RPNG2)$(E): $(ROBJS2d)
109	$(LD) $(LDFLAGS) -o $@ $(ROBJS2d) $(RLIBSd)
110
111$(WPNGs)$(E): $(WOBJSs)
112	$(LD) $(LDFLAGS) -o $@ $(WOBJSs) $(WLIBSs)
113
114$(WPNG)$(E): $(WOBJSd)
115	$(LD) $(LDFLAGS) -o $@ $(WOBJSd) $(WLIBSd)
116
117$(RPNG)$(O):	$(RPNG).c readpng.h
118$(RPNG2)$(O):	$(RPNG2).c readpng2.h
119$(WPNG)$(O):	$(WPNG).c writepng.h
120
121readpng$(O) readpng.pic$(O):	readpng.c readpng.h
122readpng2$(O) readpng2.pic$(O):	readpng2.c readpng2.h
123writepng$(O) writepng.pic$(O):	writepng.c writepng.h
124
125
126# maintenance ---------------------------------------------------------------
127
128clean:
129	$(RM) $(EXES)
130	$(RM) $(ROBJSs) $(ROBJS2s) $(WOBJSs)
131	$(RM) $(ROBJSd) $(ROBJS2d) $(WOBJSd)