1# makefile for libpng
  2# Copyright (C) 2002, 2006, 2014 Glenn Randers-Pehrson
  3# Copyright (C) 1995 Guy Eric Schalnat, Group 42, Inc.
  4#
  5# This code is released under the libpng license.
  6# For conditions of distribution and use, see the disclaimer
  7# and license in png.h
  8
  9# where make install puts libpng.a and png.h
 10prefix=/usr/local
 11INCPATH=$(prefix)/include
 12LIBPATH=$(prefix)/lib
 13
 14# override DESTDIR= on the make install command line to easily support
 15# installing into a temporary location.  Example:
 16#
 17#    make install DESTDIR=/tmp/build/libpng
 18#
 19# If you're going to install into a temporary location
 20# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
 21# you execute make install.
 22DESTDIR=
 23
 24# Where the zlib library and include files are located
 25#ZLIBLIB=/usr/local/lib
 26#ZLIBINC=/usr/local/include
 27ZLIBLIB=../zlib
 28ZLIBINC=../zlib
 29
 30CC = cc
 31AR_RC = ar rc
 32MKDIR_P = mkdir
 33LN_SF = ln -sf
 34RANLIB = ranlib
 35CP = cp
 36RM_F = rm -f
 37AWK = awk
 38SED = sed
 39CPP = $(CC) -E
 40ECHO = echo
 41
 42DFNFLAGS = # DFNFLAGS contains -D options to use in the libpng build
 43DFA_EXTRA = # extra files that can be used to control configuration
 44CPPFLAGS = -I$(ZLIBINC) # -DPNG_DEBUG=5
 45CFLAGS = -O # -g
 46LDFLAGS = -L. -L$(ZLIBLIB) -lpng -lz -lm
 47
 48# Pre-built configuration
 49# See scripts/pnglibconf.mak for more options
 50PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
 51
 52OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
 53	pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
 54	pngwtran.o pngmem.o pngerror.o pngpread.o
 55
 56.c.o:
 57	$(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
 58
 59all: libpng.a pngtest
 60
 61# The standard pnglibconf.h exists as scripts/pnglibconf.h.prebuilt,
 62# copy this if the following doesn't work.
 63pnglibconf.h: pnglibconf.dfn
 64	$(RM_F) $@ pnglibconf.c pnglibconf.out pnglibconf.tmp
 65	$(ECHO) '#include "pnglibconf.dfn"' >pnglibconf.c
 66	$(ECHO) "If '$(CC) -E' crashes try /lib/cpp (e.g. CPP='/lib/cpp')" >&2
 67	$(CPP) $(DFNFLAGS) pnglibconf.c >pnglibconf.out
 68	$(AWK) -f "scripts/dfn.awk" out="pnglibconf.tmp" pnglibconf.out 1>&2
 69	mv pnglibconf.tmp $@
 70
 71pnglibconf.dfn: scripts/pnglibconf.dfa scripts/options.awk pngconf.h pngusr.dfa $(DFA_XTRA)
 72	$(RM_F) $@ pnglibconf.pre pnglibconf.tmp
 73	$(ECHO) "Calling $(AWK) from scripts/pnglibconf.mak" >&2
 74	$(ECHO) "If 'awk' crashes try a better awk (e.g. AWK='nawk')" >&2
 75	$(AWK) -f scripts/options.awk out="pnglibconf.pre"\
 76	    version=search pngconf.h scripts/pnglibconf.dfa\
 77	    pngusr.dfa $(DFA_XTRA) 1>&2
 78	$(AWK) -f scripts/options.awk out="pnglibconf.tmp" pnglibconf.pre 1>&2
 79	mv pnglibconf.tmp $@
 80
 81libpng.a: $(OBJS)
 82	$(AR_RC) $@  $(OBJS)
 83	$(RANLIB) $@
 84
 85pngtest: pngtest.o libpng.a
 86	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
 87
 88test: pngtest
 89	./pngtest
 90
 91install: libpng.a pnglibconf.h
 92	-@$(MKDIR_P) $(DESTDIR)$(INCPATH)
 93	-@$(MKDIR_P) $(DESTDIR)$(INCPATH)/libpng
 94	-@$(MKDIR_P) $(DESTDIR)$(LIBPATH)
 95	-@$(RM_F) $(DESTDIR)$(INCPATH)/png.h
 96	-@$(RM_F) $(DESTDIR)$(INCPATH)/pngconf.h
 97	-@$(RM_F) $(DESTDIR)$(INCPATH)/pnglibconf.h
 98	cp png.h $(DESTDIR)$(INCPATH)/libpng
 99	cp pngconf.h $(DESTDIR)$(INCPATH)/libpng
100	cp pnglibconf.h $(DESTDIR)$(INCPATH)/libpng
101	chmod 644 $(DESTDIR)$(INCPATH)/libpng/png.h
102	chmod 644 $(DESTDIR)$(INCPATH)/libpng/pngconf.h
103	chmod 644 $(DESTDIR)$(INCPATH)/libpng/pnglibconf.h
104	(cd $(DESTDIR)$(INCPATH); ln -f -s libpng/* .)
105	cp libpng.a $(DESTDIR)$(LIBPATH)
106	chmod 644 $(DESTDIR)$(LIBPATH)/libpng.a
107
108clean:
109	$(RM_F) *.o libpng.a pngtest pngout.png pnglibconf.h pnglibconf.c \
110	pnglibconf.out
111
112DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
113writelock:
114	chmod a-w *.[ch35] $(DOCS) scripts/*
115
116# DO NOT DELETE THIS LINE -- make depend depends on it.
117
118png.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
119pngerror.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
120pngrio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
121pngwio.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
122pngmem.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
123pngset.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
124pngget.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
125pngread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
126pngrtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
127pngrutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
128pngtrans.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
129pngwrite.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
130pngwtran.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
131pngwutil.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
132pngpread.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
133
134pngtest.o: png.h pngconf.h pnglibconf.h