1# makefile for libpng.a and libpng16.so on Linux ELF with gcc
2# Copyright (C) 1998, 1999, 2002, 2006, 2008, 2010-2014 Greg Roelofs and
3# Glenn Randers-Pehrson
4# Copyright (C) 1996, 1997 Andreas Dilger
5#
6# This code is released under the libpng license.
7# For conditions of distribution and use, see the disclaimer
8# and license in png.h
9
10# Library name:
11LIBNAME = libpng16
12PNGMAJ = 16
13RELEASE = 10
14
15# Shared library names:
16LIBSO=$(LIBNAME).so
17LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
18LIBSOREL=$(LIBSOMAJ).$(RELEASE)
19OLDSO=libpng.so
20
21# Utilities:
22AR_RC=ar rc
23CC=gcc
24MKDIR_P=mkdir -p
25LN_SF=ln -sf
26RANLIB=ranlib
27RM_F=/bin/rm -f
28
29# where "make install" puts libpng16.a, libpng16.so*,
30# libpng16/png.h, libpng16/pngconf.h, and libpng16/pnglibconf.h
31# Prefix must be a full pathname.
32prefix=/usr/local
33exec_prefix=$(prefix)
34
35# Where the zlib library and include files are located.
36#ZLIBLIB=/usr/local/lib
37#ZLIBINC=/usr/local/include
38ZLIBLIB=../zlib
39ZLIBINC=../zlib
40
41ALIGN=
42# for i386:
43#ALIGN=-malign-loops=2 -malign-functions=2
44
45WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
46	-Wmissing-declarations -Wtraditional -Wcast-align \
47	-Wstrict-prototypes -Wmissing-prototypes #-Wconversion
48
49# for pgcc version 2.95.1, -O3 is buggy; don't use it.
50
51CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
52CFLAGS= -W -Wall -O3 -funroll-loops \
53	$(ALIGN) # $(WARNMORE) -g -DPNG_DEBUG=5
54
55LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng16 -lz -lm
56LDFLAGS_A=-L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) libpng.a -lz -lm
57
58INCPATH=$(prefix)/include
59LIBPATH=$(exec_prefix)/lib
60MANPATH=$(prefix)/man
61BINPATH=$(exec_prefix)/bin
62
63# override DESTDIR= on the make install command line to easily support
64# installing into a temporary location.  Example:
65#
66#    make install DESTDIR=/tmp/build/libpng
67#
68# If you're going to install into a temporary location
69# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
70# you execute make install.
71DESTDIR=
72
73DB=$(DESTDIR)$(BINPATH)
74DI=$(DESTDIR)$(INCPATH)
75DL=$(DESTDIR)$(LIBPATH)
76DM=$(DESTDIR)$(MANPATH)
77
78OBJS =  png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
79	pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
80	pngwtran.o pngmem.o pngerror.o pngpread.o
81
82OBJSDLL = $(OBJS:.o=.pic.o)
83
84.SUFFIXES:      .c .o .pic.o
85
86.c.o:
87	$(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
88
89.c.pic.o:
90	$(CC) -c $(CFLAGS) -fPIC -o $@ $*.c
91
92all: libpng.a $(LIBSO) pngtest pngtest-static libpng.pc libpng-config
93
94# see scripts/pnglibconf.mak for more options
95pnglibconf.h: scripts/pnglibconf.h.prebuilt
96	cp scripts/pnglibconf.h.prebuilt $@
97
98libpng.a: $(OBJS)
99	$(AR_RC) $@ $(OBJS)
100	$(RANLIB) $@
101
102libpng.pc:
103	cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
104	-e s!@exec_prefix@!$(exec_prefix)! \
105	-e s!@libdir@!$(LIBPATH)! \
106	-e s!@includedir@!$(INCPATH)! \
107	-e s!-lpng16!-lpng16\ -lz\ -lm! > libpng.pc
108
109libpng-config:
110	( cat scripts/libpng-config-head.in; \
111	echo prefix=\"$(prefix)\"; \
112	echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
113	echo L_opts=\"-L$(LIBPATH)\"; \
114	echo R_opts=\"-Wl,-rpath,$(LIBPATH)\"; \
115	echo libs=\"-lpng16 -lz -lm\"; \
116	cat scripts/libpng-config-body.in ) > libpng-config
117	chmod +x libpng-config
118
119$(LIBSO): $(LIBSOMAJ)
120	$(LN_SF) $(LIBSOMAJ) $(LIBSO)
121
122$(LIBSOMAJ): $(OBJSDLL)
123	$(CC) -shared -Wl,-soname,$(LIBSOMAJ) -o $(LIBSOMAJ) $(OBJSDLL)
124
125pngtest: pngtest.o $(LIBSO)
126	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
127
128pngtest-static: pngtest.o libpng.a
129	$(CC) -o pngtest-static $(CFLAGS) pngtest.o $(LDFLAGS_A)
130
131test: pngtest pngtest-static
132	@echo ""
133	@echo "   Running pngtest dynamically linked with $(LIBSO):"
134	@echo ""
135	./pngtest
136	@echo ""
137	@echo "   Running pngtest statically linked with libpng.a:"
138	@echo ""
139	./pngtest-static
140
141install-headers: png.h pngconf.h pnglibconf.h
142	-@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
143	-@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
144	cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
145	chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h $(DI)/$(LIBNAME)/pnglibconf.h
146	-@$(RM_F) $(DI)/png.h $(DI)/pngconf.h $(DI)/pnglibconf.h
147	-@$(RM_F) $(DI)/libpng
148	(cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
149
150install-static: install-headers libpng.a
151	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
152	cp libpng.a $(DL)/$(LIBNAME).a
153	chmod 644 $(DL)/$(LIBNAME).a
154	-@$(RM_F) $(DL)/libpng.a
155	(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
156
157install-shared: install-headers $(LIBSOMAJ) libpng.pc
158	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
159	-@$(RM_F) $(DL)/$(LIBSO)
160	-@$(RM_F) $(DL)/$(LIBSOREL)
161	-@$(RM_F) $(DL)/$(OLDSO)
162	cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
163	chmod 755 $(DL)/$(LIBSOREL)
164	(cd $(DL); \
165	$(LN_SF) $(LIBSOREL) $(LIBSO); \
166	$(LN_SF) $(LIBSO) $(OLDSO))
167
168	-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
169	-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
170	-@$(RM_F) $(DL)/pkgconfig/libpng.pc
171	cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
172	chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
173	(cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
174
175install-man: libpng.3 libpngpf.3 png.5
176	-@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
177	-@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
178	-@$(RM_F) $(DM)/man3/libpng.3
179	-@$(RM_F) $(DM)/man3/libpngpf.3
180	cp libpng.3 $(DM)/man3
181	cp libpngpf.3 $(DM)/man3
182	-@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
183	-@$(RM_F) $(DM)/man5/png.5
184	cp png.5 $(DM)/man5
185
186install-config: libpng-config
187	-@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
188	-@$(RM_F) $(DB)/libpng-config
189	-@$(RM_F) $(DB)/$(LIBNAME)-config
190	cp libpng-config $(DB)/$(LIBNAME)-config
191	chmod 755 $(DB)/$(LIBNAME)-config
192	(cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
193
194install: install-static install-shared install-man install-config
195
196# If you installed in $(DESTDIR), test-installed won't work until you
197# move the library to its final location.  Use test-dd to test it
198# before then.
199
200test-dd:
201	echo
202	echo Testing installed dynamic shared library in $(DL).
203	$(CC) -I$(DI) $(CPPFLAGS) \
204	   `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
205	   -L$(DL) -L$(ZLIBLIB) -Wl, -rpath,$(DL) -Wl,-rpath,$(ZLIBLIB) \
206	   -o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
207	./pngtestd pngtest.png
208
209test-installed:
210	$(CC) $(CPPFLAGS) \
211	   `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
212	   -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) \
213	   -o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
214	./pngtesti pngtest.png
215
216clean:
217	$(RM_F) *.o libpng.a pngtest pngout.png libpng-config \
218	$(LIBSO) $(LIBSOMAJ)* pngtest-static pngtesti \
219	libpng.pc pnglibconf.h
220
221DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
222writelock:
223	chmod a-w *.[ch35] $(DOCS) scripts/*
224
225# DO NOT DELETE THIS LINE -- make depend depends on it.
226
227png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
228pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
229pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
230pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
231pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
232pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
233pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
234pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
235pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
236pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
237pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
238pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
239pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
240pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
241pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
242
243pngtest.o: png.h pngconf.h pnglibconf.h
244