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0272a10d 1# makefile for libpng.a and libpng12.so on Linux ELF with gcc
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2# Copyright (C) 1998, 1999, 2002, 2006, 2008 Greg Roelofs
3# and Glenn Randers-Pehrson
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4# Copyright (C) 1996, 1997 Andreas Dilger
5# For conditions of distribution and use, see copyright notice in png.h
6
7# Modified for Debian by Junichi Uekawa and Josselin Mouette
8# Major modifications are:
9# * link libpng explicitly with libz and libm
10# * $(OLDSO).3 is a symlink rather than a different library
11# * versioned symbols
12
13# Library name:
14LIBNAME = libpng12
15PNGMAJ = 0
970f6abe 16PNGMIN = 1.2.34
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17PNGVER = $(PNGMAJ).$(PNGMIN)
18
19# Shared library names:
20LIBSO=$(LIBNAME).so
21LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
22LIBSOVER=$(LIBNAME).so.$(PNGVER)
23OLDSO=libpng.so
24OLDSOMAJ=libpng.so.3
25OLDSOVER=libpng.so.3.$(PNGMIN)
26
27# Utilities:
28AR_RC=ar rc
29CC=gcc
30MKDIR_P=mkdir -p
31LN_SF=ln -sf
32RANLIB=ranlib
33RM_F=/bin/rm -f
34
35# where "make install" puts libpng12.a, libpng12.so*,
36# libpng12/png.h and libpng12/pngconf.h
37# Prefix must be a full pathname.
38prefix=/usr/local
39exec_prefix=$(prefix)
40
41# Where the zlib library and include files are located.
42ZLIBLIB=/usr/local/lib
43ZLIBINC=/usr/local/include
44# ZLIBLIB=../zlib
45# ZLIBINC=../zlib
46
47ALIGN=
48# for i386:
49#ALIGN=-malign-loops=2 -malign-functions=2
50
51WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
52 -Wmissing-declarations -Wtraditional -Wcast-align \
53 -Wstrict-prototypes -Wmissing-prototypes #-Wconversion
54
55# for pgcc version 2.95.1, -O3 is buggy; don't use it.
56
970f6abe 57CFLAGS=-W -Wall -D_REENTRANT -O2 \
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58 $(ALIGN) # $(WARNMORE) -g -DPNG_DEBUG=5
59
60LDFLAGS=-L. -lpng12
61LDFLAGS_A=libpng.a -lz -lm
62LIBADDFLAGS=-lz -lm
63
64
65INCPATH=$(prefix)/include
66LIBPATH=$(exec_prefix)/lib
67MANPATH=$(prefix)/man
68BINPATH=$(exec_prefix)/bin
69
70# override DESTDIR= on the make install command line to easily support
71# installing into a temporary location. Example:
72#
73# make install DESTDIR=/tmp/build/libpng
74#
75# If you're going to install into a temporary location
76# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
77# you execute make install.
78DESTDIR=
79
80DB=$(DESTDIR)$(BINPATH)
81DI=$(DESTDIR)$(INCPATH)
82DL=$(DESTDIR)$(LIBPATH)
83DM=$(DESTDIR)$(MANPATH)
84
85OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
86 pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
87 pngwtran.o pngmem.o pngerror.o pngpread.o
88
89OBJSDLL = $(OBJS:.o=.pic.o)
90
91.SUFFIXES: .c .o .pic.o
92
93.c.pic.o:
94 $(CC) -c $(CFLAGS) -fPIC -o $@ $*.c
95
96all: libpng.a $(LIBSO) pngtest pngtest-static libpng.pc libpng-config
97
98libpng.a: $(OBJS)
99 $(AR_RC) $@ $(OBJS)
100 $(RANLIB) $@
101
102libpng.pc:
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103 cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
104 -e s!@exec_prefix@!$(exec_prefix)! \
105 -e s!@libdir@!$(LIBPATH)! \
106 -e s!@includedir@!$(INCPATH)! \
107 -e s!-lpng12!-lpng12\ -lz\ -lm! > libpng.pc
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108
109libpng.syms: png.h pngconf.h
110 $(CC) $(CFLAGS) -E -DPNG_BUILDSYMS -DPNG_INTERNAL png.h |\
111 awk -F '[\t [\\]();]' -v PNGMAJ=$(PNGMAJ) 'BEGIN{printf("PNG12_%s {global:\n",PNGMAJ)}\
112 { for (i=1;i+2<=NF;++i)\
113 if ($$(i)=="PNG_FUNCTION_EXPORT" && $$(i+2)=="END")\
114 print $$(i+1) ";";\
115 for (i=1;i+1<=NF;++i)\
116 if ($$(i)=="PNG_DATA_EXPORT")\
117 print $$(i+1) ";";}\
118 END{print "local: *; };"}' >$@.new
119 $(RM_F) $@
120 mv $@.new $@
121
122libpng-config:
123 ( cat scripts/libpng-config-head.in; \
124 echo prefix=\"$(prefix)\"; \
125 echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
126 echo L_opts=\"\"; \
127 echo R_opts=\"\"; \
128 echo libs=\"-lpng12\"; \
129 echo all_libs=\"-lpng12 $(LIBADDFLAGS)\"; \
130 cat scripts/libpng-config-body.in ) > libpng-config
131 chmod +x libpng-config
132
133$(LIBSO): $(LIBSOMAJ)
134 $(LN_SF) $(LIBSOMAJ) $(LIBSO)
135
136$(LIBSOMAJ): $(LIBSOVER)
137 $(LN_SF) $(LIBSOVER) $(LIBSOMAJ)
138
139$(LIBSOVER): $(OBJSDLL) libpng.syms
140 $(CC) -shared -Wl,-soname,$(LIBSOMAJ) \
141 -Wl,-version-script,libpng.syms \
142 -o $(LIBSOVER) \
143 $(OBJSDLL)
144
145$(OLDSOVER): $(OBJSDLL) libpng.syms
146 $(CC) -shared -Wl,-soname,$(OLDSOMAJ) \
147 -Wl,-version-script,libpng.syms \
148 -o $(OLDSOVER) \
149 $(OBJSDLL)
150
151pngtest: pngtest.o $(LIBSO)
152 $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
153
154pngtest-static: pngtest.o libpng.a
155 $(CC) -o pngtest-static $(CFLAGS) pngtest.o $(LDFLAGS_A)
156
157test: pngtest pngtest-static
158 @echo ""
159 @echo " Running pngtest dynamically linked with $(LIBSO):"
160 @echo ""
161 LD_LIBRARY_PATH=".:${LD_LIBRARY_PATH}" ./pngtest
162 @echo ""
163 @echo " Running pngtest statically linked with libpng.a:"
164 @echo ""
165 ./pngtest-static
166
167install-headers: png.h pngconf.h
168 -@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
169 -@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
170 cp png.h pngconf.h $(DI)/$(LIBNAME)
171 chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h
172 -@$(RM_F) $(DI)/png.h $(DI)/pngconf.h
173 -@$(RM_F) $(DI)/libpng
174 (cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
175
176install-static: install-headers libpng.a
177 -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
178 cp libpng.a $(DL)/$(LIBNAME).a
179 chmod 644 $(DL)/$(LIBNAME).a
180 -@$(RM_F) $(DL)/libpng.a
181 (cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
182
183install-shared: install-headers $(LIBSOVER) libpng.pc \
184 $(OLDSOVER)
185 -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
186 -@$(RM_F) $(DL)/$(LIBSOVER)* $(DL)/$(LIBSO)
187 -@$(RM_F) $(DL)/$(LIBSOMAJ)
188 -@$(RM_F) $(DL)/$(OLDSO)
189 -@$(RM_F) $(DL)/$(OLDSOMAJ)
190 -@$(RM_F) $(DL)/$(OLDSOVER)*
191 cp $(LIBSOVER) $(DL)
192 cp $(OLDSOVER) $(DL)
193 chmod 755 $(DL)/$(LIBSOVER)
194 chmod 755 $(DL)/$(OLDSOVER)
195 (cd $(DL); \
196 $(LN_SF) $(OLDSOVER) $(OLDSOMAJ); \
197 $(LN_SF) $(OLDSOMAJ) $(OLDSO); \
198 $(LN_SF) $(LIBSOVER) $(LIBSOMAJ); \
199 $(LN_SF) $(LIBSOMAJ) $(LIBSO))
200 -@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
201 -@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
202 -@$(RM_F) $(DL)/pkgconfig/libpng.pc
203 cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
204 chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
205 (cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
206
207install-man: libpng.3 libpngpf.3 png.5
208 -@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
209 -@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
210 -@$(RM_F) $(DM)/man3/libpng.3
211 -@$(RM_F) $(DM)/man3/libpngpf.3
212 cp libpng.3 $(DM)/man3
213 cp libpngpf.3 $(DM)/man3
214 -@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
215 -@$(RM_F) $(DM)/man5/png.5
216 cp png.5 $(DM)/man5
217
218install-config: libpng-config
219 -@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
220 -@$(RM_F) $(DB)/libpng-config
221 -@$(RM_F) $(DB)/$(LIBNAME)-config
222 cp libpng-config $(DB)/$(LIBNAME)-config
223 chmod 755 $(DB)/$(LIBNAME)-config
224 (cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
225
226install: install-static install-shared install-man install-config
227
228# If you installed in $(DESTDIR), test-installed won't work until you
229# move the library to its final location. Use test-dd to test it
230# before then.
231
232test-dd:
233 echo
234 echo Testing installed dynamic shared library in $(DL).
235 $(CC) -I$(DI) -I$(ZLIBINC) \
236 `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
237 -L$(DL) -L$(ZLIBLIB) -Wl, -rpath,$(DL) -Wl,-rpath,$(ZLIBLIB) \
238 -o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
239 ./pngtestd pngtest.png
240
241test-installed:
242 $(CC) -I$(ZLIBINC) \
243 `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
244 -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) \
245 -o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
246 ./pngtesti pngtest.png
247
248clean:
249 $(RM_F) *.o libpng.a libpng.syms pngtest pngout.png libpng-config \
250 $(LIBSO) $(LIBSOMAJ)* pngtest-static pngtesti \
251 $(OLDSOVER) \
252 libpng.pc
253
254DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
255writelock:
256 chmod a-w *.[ch35] $(DOCS) scripts/*
257
258# DO NOT DELETE THIS LINE -- make depend depends on it.
259
260png.o png.pic.o: png.h pngconf.h
261pngerror.o pngerror.pic.o: png.h pngconf.h
262pngrio.o pngrio.pic.o: png.h pngconf.h
263pngwio.o pngwio.pic.o: png.h pngconf.h
264pngmem.o pngmem.pic.o: png.h pngconf.h
265pngset.o pngset.pic.o: png.h pngconf.h
266pngget.o pngget.pic.o: png.h pngconf.h
267pngread.o pngread.pic.o: png.h pngconf.h
268pngrtran.o pngrtran.pic.o: png.h pngconf.h
269pngrutil.o pngrutil.pic.o: png.h pngconf.h
270pngtrans.o pngtrans.pic.o: png.h pngconf.h
271pngwrite.o pngwrite.pic.o: png.h pngconf.h
272pngwtran.o pngwtran.pic.o: png.h pngconf.h
273pngwutil.o pngwutil.pic.o: png.h pngconf.h
274pngpread.o pngpread.pic.o: png.h pngconf.h
275
276pngtest.o: png.h pngconf.h