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1# makefile for libpng.a and libpng14.so on Linux ELF with gcc
2# Copyright (C) 1998, 1999, 2002, 2006, 2008, 2010 Greg Roelofs
970f6abe 3# and Glenn Randers-Pehrson
0272a10d 4# Copyright (C) 1996, 1997 Andreas Dilger
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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
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9
10# Modified for Debian by Junichi Uekawa and Josselin Mouette
11# Major modifications are:
12# * link libpng explicitly with libz and libm
b61cc19c 13# * $(OLDSO).14 is a symlink rather than a different library
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14# * versioned symbols
15
16# Library name:
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17LIBNAME = libpng14
18PNGMAJ = 14
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19
20# Shared library names:
21LIBSO=$(LIBNAME).so
22LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
b61cc19c 23LIBSOREL=$(LIBSOMAJ).$(RELEASE)
0272a10d 24OLDSO=libpng.so
b61cc19c 25OLDSOMAJ=libpng.so.14
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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
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35# where "make install" puts libpng14.a, libpng14.so*,
36# libpng14/png.h and libpng14/pngconf.h
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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) # $(WARNMORE) -g -DPNG_DEBUG=5
59
b61cc19c 60LDFLAGS=-L. -lpng14
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61LDFLAGS_A=libpng.a -lz -lm
62LIBADDFLAGS=-lz -lm
63
64
65INCPATH=$(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)! \
b61cc19c 107 -e s!-lpng14!-lpng14\ -lz\ -lm! > libpng.pc
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108
109libpng.syms: png.h pngconf.h
110 $(CC) $(CFLAGS) -E -DPNG_BUILDSYMS -DPNG_INTERNAL png.h |\
b61cc19c 111 awk -F '[\t [\\]();]' -v PNGMAJ=$(PNGMAJ) 'BEGIN{printf("PNG14_%s {global:\n",PNGMAJ)}\
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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=\"\"; \
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128 echo libs=\"-lpng14\"; \
129 echo all_libs=\"-lpng14 $(LIBADDFLAGS)\"; \
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130 cat scripts/libpng-config-body.in ) > libpng-config
131 chmod +x libpng-config
132
133$(LIBSO): $(LIBSOMAJ)
134 $(LN_SF) $(LIBSOMAJ) $(LIBSO)
135
b61cc19c 136$(LIBSOMAJ): $(OBJSDLL) libpng.syms
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137 $(CC) -shared -Wl,-soname,$(LIBSOMAJ) \
138 -Wl,-version-script,libpng.syms \
b61cc19c 139 -o $(LIBSOMAJ) \
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140 $(OBJSDLL)
141
142pngtest: pngtest.o $(LIBSO)
143 $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
144
145pngtest-static: pngtest.o libpng.a
146 $(CC) -o pngtest-static $(CFLAGS) pngtest.o $(LDFLAGS_A)
147
148test: pngtest pngtest-static
149 @echo ""
150 @echo " Running pngtest dynamically linked with $(LIBSO):"
151 @echo ""
152 LD_LIBRARY_PATH=".:${LD_LIBRARY_PATH}" ./pngtest
153 @echo ""
154 @echo " Running pngtest statically linked with libpng.a:"
155 @echo ""
156 ./pngtest-static
157
158install-headers: png.h pngconf.h
159 -@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
160 -@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
161 cp png.h pngconf.h $(DI)/$(LIBNAME)
162 chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h
163 -@$(RM_F) $(DI)/png.h $(DI)/pngconf.h
164 -@$(RM_F) $(DI)/libpng
165 (cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
166
167install-static: install-headers libpng.a
168 -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
169 cp libpng.a $(DL)/$(LIBNAME).a
170 chmod 644 $(DL)/$(LIBNAME).a
171 -@$(RM_F) $(DL)/libpng.a
172 (cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
173
b61cc19c 174install-shared: install-headers $(LIBSOMAJ) libpng.pc
0272a10d 175 -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
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176 -@$(RM_F) $(DL)/$(LIBSO)
177 -@$(RM_F) $(DL)/$(LIBSOREL)
0272a10d 178 -@$(RM_F) $(DL)/$(OLDSO)
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179 cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
180 chmod 755 $(DL)/$(LIBSOREL)
0272a10d 181 (cd $(DL); \
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182 $(LN_SF) $(LIBSOREL) $(LIBSO); \
183 $(LN_SF) $(LIBSO) $(OLDSO))
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184 -@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
185 -@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
186 -@$(RM_F) $(DL)/pkgconfig/libpng.pc
187 cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
188 chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
189 (cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
190
191install-man: libpng.3 libpngpf.3 png.5
192 -@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
193 -@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
194 -@$(RM_F) $(DM)/man3/libpng.3
195 -@$(RM_F) $(DM)/man3/libpngpf.3
196 cp libpng.3 $(DM)/man3
197 cp libpngpf.3 $(DM)/man3
198 -@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
199 -@$(RM_F) $(DM)/man5/png.5
200 cp png.5 $(DM)/man5
201
202install-config: libpng-config
203 -@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
204 -@$(RM_F) $(DB)/libpng-config
205 -@$(RM_F) $(DB)/$(LIBNAME)-config
206 cp libpng-config $(DB)/$(LIBNAME)-config
207 chmod 755 $(DB)/$(LIBNAME)-config
208 (cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
209
210install: install-static install-shared install-man install-config
211
212# If you installed in $(DESTDIR), test-installed won't work until you
213# move the library to its final location. Use test-dd to test it
214# before then.
215
216test-dd:
217 echo
218 echo Testing installed dynamic shared library in $(DL).
219 $(CC) -I$(DI) -I$(ZLIBINC) \
220 `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
221 -L$(DL) -L$(ZLIBLIB) -Wl, -rpath,$(DL) -Wl,-rpath,$(ZLIBLIB) \
222 -o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
223 ./pngtestd pngtest.png
224
225test-installed:
226 $(CC) -I$(ZLIBINC) \
227 `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
228 -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) \
229 -o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
230 ./pngtesti pngtest.png
231
232clean:
233 $(RM_F) *.o libpng.a libpng.syms pngtest pngout.png libpng-config \
234 $(LIBSO) $(LIBSOMAJ)* pngtest-static pngtesti \
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235 libpng.pc
236
237DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
238writelock:
239 chmod a-w *.[ch35] $(DOCS) scripts/*
240
241# DO NOT DELETE THIS LINE -- make depend depends on it.
242
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243png.o png.pic.o: png.h pngconf.h pngpriv.h
244pngerror.o pngerror.pic.o: png.h pngconf.h pngpriv.h
245pngrio.o pngrio.pic.o: png.h pngconf.h pngpriv.h
246pngwio.o pngwio.pic.o: png.h pngconf.h pngpriv.h
247pngmem.o pngmem.pic.o: png.h pngconf.h pngpriv.h
248pngset.o pngset.pic.o: png.h pngconf.h pngpriv.h
249pngget.o pngget.pic.o: png.h pngconf.h pngpriv.h
250pngread.o pngread.pic.o: png.h pngconf.h pngpriv.h
251pngrtran.o pngrtran.pic.o: png.h pngconf.h pngpriv.h
252pngrutil.o pngrutil.pic.o: png.h pngconf.h pngpriv.h
253pngtrans.o pngtrans.pic.o: png.h pngconf.h pngpriv.h
254pngwrite.o pngwrite.pic.o: png.h pngconf.h pngpriv.h
255pngwtran.o pngwtran.pic.o: png.h pngconf.h pngpriv.h
256pngwutil.o pngwutil.pic.o: png.h pngconf.h pngpriv.h
257pngpread.o pngpread.pic.o: png.h pngconf.h pngpriv.h
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258
259pngtest.o: png.h pngconf.h