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 = 37
14
15# Shared library names:
16LIBSO=$(LIBNAME).so
17LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
18LIBSOREL=$(LIBSOMAJ).$(RELEASE)
19OLDSO=libpng.so
20
21# Utilities:
22AR_RC=ar rc
23CC=gcc
24MKDIR_P=mkdir -p
25LN_SF=ln -sf
26RANLIB=ranlib
27CP=cp
28RM_F=/bin/rm -f
29
30# where "make install" puts libpng16.a, libpng16.so*,
31# libpng16/png.h, libpng16/pngconf.h, and libpng16/pnglibconf.h
32# Prefix must be a full pathname.
33prefix=/usr/local
34exec_prefix=$(prefix)
35
36# Where the zlib library and include files are located.
37#ZLIBLIB=/usr/local/lib
38#ZLIBINC=/usr/local/include
39ZLIBLIB=../zlib
40ZLIBINC=../zlib
41
42ALIGN=
43# for i386:
44#ALIGN=-malign-loops=2 -malign-functions=2
45
46WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
47	-Wmissing-declarations -Wtraditional -Wcast-align \
48	-Wstrict-prototypes -Wmissing-prototypes #-Wconversion
49
50# for pgcc version 2.95.1, -O3 is buggy; don't use it.
51
52CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
53CFLAGS=-W -Wall -O3 -funroll-loops $(ALIGN) # $(WARNMORE) -g
54
55LDFLAGS=-L. -Wl,-rpath,. -L$(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
78# Pre-built configuration
79# See scripts/pnglibconf.mak for more options
80PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
81
82OBJS =  png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
83	pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
84	pngwtran.o pngmem.o pngerror.o pngpread.o
85
86OBJSDLL = $(OBJS:.o=.pic.o)
87
88.SUFFIXES:      .c .o .pic.o
89
90.c.o:
91	$(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
92
93.c.pic.o:
94	$(CC) -c $(CPPFLAGS) $(CFLAGS) -fPIC -o $@ $*.c
95
96all: libpng.a $(LIBSO) pngtest pngtest-static libpng.pc libpng-config
97
98pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
99	$(CP) $(PNGLIBCONF_H_PREBUILT) $@
100
101libpng.a: $(OBJS)
102	$(AR_RC) $@ $(OBJS)
103	$(RANLIB) $@
104
105libpng.pc:
106	cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
107	-e s!@exec_prefix@!$(exec_prefix)! \
108	-e s!@libdir@!$(LIBPATH)! \
109	-e s!@includedir@!$(INCPATH)! \
110	-e s!-lpng16!-lpng16\ -lz\ -lm! > libpng.pc
111
112libpng-config:
113	( cat scripts/libpng-config-head.in; \
114	echo prefix=\"$(prefix)\"; \
115	echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
116	echo L_opts=\"-L$(LIBPATH)\"; \
117	echo R_opts=\"-Wl,-rpath,$(LIBPATH)\"; \
118	echo libs=\"-lpng16 -lz -lm\"; \
119	cat scripts/libpng-config-body.in ) > libpng-config
120	chmod +x libpng-config
121
122$(LIBSO): $(LIBSOMAJ)
123	$(LN_SF) $(LIBSOMAJ) $(LIBSO)
124
125$(LIBSOMAJ): $(OBJSDLL)
126	$(CC) -shared -Wl,-soname,$(LIBSOMAJ) -o $(LIBSOMAJ) $(OBJSDLL)
127
128pngtest: pngtest.o $(LIBSO)
129	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
130
131pngtest-static: pngtest.o libpng.a
132	$(CC) -o pngtest-static $(CFLAGS) pngtest.o $(LDFLAGS_A)
133
134test: pngtest pngtest-static
135	@echo ""
136	@echo "   Running pngtest dynamically linked with $(LIBSO):"
137	@echo ""
138	./pngtest
139	@echo ""
140	@echo "   Running pngtest statically linked with libpng.a:"
141	@echo ""
142	./pngtest-static
143
144install-headers: png.h pngconf.h pnglibconf.h
145	-@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
146	-@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
147	cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
148	chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h $(DI)/$(LIBNAME)/pnglibconf.h
149	-@$(RM_F) $(DI)/png.h $(DI)/pngconf.h $(DI)/pnglibconf.h
150	-@$(RM_F) $(DI)/libpng
151	(cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
152
153install-static: install-headers libpng.a
154	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
155	cp libpng.a $(DL)/$(LIBNAME).a
156	chmod 644 $(DL)/$(LIBNAME).a
157	-@$(RM_F) $(DL)/libpng.a
158	(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
159
160install-shared: install-headers $(LIBSOMAJ) libpng.pc
161	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
162	-@$(RM_F) $(DL)/$(LIBSO)
163	-@$(RM_F) $(DL)/$(LIBSOREL)
164	-@$(RM_F) $(DL)/$(OLDSO)
165	cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
166	chmod 755 $(DL)/$(LIBSOREL)
167	(cd $(DL); \
168	$(LN_SF) $(LIBSOREL) $(LIBSO); \
169	$(LN_SF) $(LIBSO) $(OLDSO))
170
171	-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
172	-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
173	-@$(RM_F) $(DL)/pkgconfig/libpng.pc
174	cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
175	chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
176	(cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
177
178install-man: libpng.3 libpngpf.3 png.5
179	-@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
180	-@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
181	-@$(RM_F) $(DM)/man3/libpng.3
182	-@$(RM_F) $(DM)/man3/libpngpf.3
183	cp libpng.3 $(DM)/man3
184	cp libpngpf.3 $(DM)/man3
185	-@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
186	-@$(RM_F) $(DM)/man5/png.5
187	cp png.5 $(DM)/man5
188
189install-config: libpng-config
190	-@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
191	-@$(RM_F) $(DB)/libpng-config
192	-@$(RM_F) $(DB)/$(LIBNAME)-config
193	cp libpng-config $(DB)/$(LIBNAME)-config
194	chmod 755 $(DB)/$(LIBNAME)-config
195	(cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
196
197install: install-static install-shared install-man install-config
198
199# If you installed in $(DESTDIR), test-installed won't work until you
200# move the library to its final location.  Use test-dd to test it
201# before then.
202
203test-dd:
204	echo
205	echo Testing installed dynamic shared library in $(DL).
206	$(CC) -I$(DI) $(CPPFLAGS) \
207	   `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
208	   -L$(DL) -L$(ZLIBLIB) -Wl, -rpath,$(DL) -Wl,-rpath,$(ZLIBLIB) \
209	   -o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
210	./pngtestd pngtest.png
211
212test-installed:
213	$(CC) $(CPPFLAGS) \
214	   `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
215	   -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) \
216	   -o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
217	./pngtesti pngtest.png
218
219clean:
220	$(RM_F) *.o libpng.a pngtest pngout.png libpng-config \
221	$(LIBSO) $(LIBSOMAJ)* pngtest-static pngtesti \
222	libpng.pc pnglibconf.h
223
224DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
225writelock:
226	chmod a-w *.[ch35] $(DOCS) scripts/*
227
228# DO NOT DELETE THIS LINE -- make depend depends on it.
229
230png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
231pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
232pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
233pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
234pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
235pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
236pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
237pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
238pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
239pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
240pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
241pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
242pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
243pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
244pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
245
246pngtest.o: png.h pngconf.h pnglibconf.h
247