1# makefile for libpng.a and libpng12.so on Linux ELF with gcc 2# Copyright (C) 1998, 1999, 2002, 2006, 2008 Greg Roelofs 3# and 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# Modified for Debian by Junichi Uekawa and Josselin Mouette 11# Major modifications are: 12# * link libpng explicitly with libz and libm 13# * $(OLDSO).3 is a symlink rather than a different library 14# * versioned symbols 15 16# Library name: 17LIBNAME = libpng12 18PNGMAJ = 0 19PNGMIN = 1.2.46 20PNGVER = $(PNGMAJ).$(PNGMIN) 21 22# Shared library names: 23LIBSO=$(LIBNAME).so 24LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ) 25LIBSOVER=$(LIBNAME).so.$(PNGVER) 26OLDSO=libpng.so 27OLDSOMAJ=libpng.so.3 28OLDSOVER=libpng.so.3.$(PNGMIN) 29 30# Utilities: 31AR_RC=ar rc 32CC=gcc 33MKDIR_P=mkdir -p 34LN_SF=ln -sf 35RANLIB=ranlib 36RM_F=/bin/rm -f 37 38# where "make install" puts libpng12.a, libpng12.so*, 39# libpng12/png.h and libpng12/pngconf.h 40# Prefix must be a full pathname. 41prefix=/usr/local 42exec_prefix=$(prefix) 43 44# Where the zlib library and include files are located. 45ZLIBLIB=/usr/local/lib 46ZLIBINC=/usr/local/include 47# ZLIBLIB=../zlib 48# ZLIBINC=../zlib 49 50ALIGN= 51# for i386: 52#ALIGN=-malign-loops=2 -malign-functions=2 53 54WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \ 55 -Wmissing-declarations -Wtraditional -Wcast-align \ 56 -Wstrict-prototypes -Wmissing-prototypes #-Wconversion 57 58# for pgcc version 2.95.1, -O3 is buggy; don't use it. 59 60CFLAGS=-W -Wall -D_REENTRANT -O2 \ 61 $(ALIGN) # $(WARNMORE) -g -DPNG_DEBUG=5 62 63LDFLAGS=-L. -lpng12 64LDFLAGS_A=libpng.a -lz -lm 65LIBADDFLAGS=-lz -lm 66 67 68INCPATH=$(prefix)/include 69LIBPATH=$(exec_prefix)/lib 70MANPATH=$(prefix)/man 71BINPATH=$(exec_prefix)/bin 72 73# override DESTDIR= on the make install command line to easily support 74# installing into a temporary location. Example: 75# 76# make install DESTDIR=/tmp/build/libpng 77# 78# If you're going to install into a temporary location 79# via DESTDIR, $(DESTDIR)$(prefix) must already exist before 80# you execute make install. 81DESTDIR= 82 83DB=$(DESTDIR)$(BINPATH) 84DI=$(DESTDIR)$(INCPATH) 85DL=$(DESTDIR)$(LIBPATH) 86DM=$(DESTDIR)$(MANPATH) 87 88OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \ 89 pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \ 90 pngwtran.o pngmem.o pngerror.o pngpread.o 91 92OBJSDLL = $(OBJS:.o=.pic.o) 93 94.SUFFIXES: .c .o .pic.o 95 96.c.pic.o: 97 $(CC) -c $(CFLAGS) -fPIC -o $@ $*.c 98 99all: libpng.a $(LIBSO) pngtest pngtest-static libpng.pc libpng-config 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!-lpng12!-lpng12\ -lz\ -lm! > libpng.pc 111 112libpng.syms: png.h pngconf.h 113 $(CC) $(CFLAGS) -E -DPNG_BUILDSYMS -DPNG_INTERNAL png.h |\ 114 awk -F '[\t [\\]();]' -v PNGMAJ=$(PNGMAJ) 'BEGIN{printf("PNG12_%s {global:\n",PNGMAJ)}\ 115 { for (i=1;i+2<=NF;++i)\ 116 if ($$(i)=="PNG_FUNCTION_EXPORT" && $$(i+2)=="END")\ 117 print $$(i+1) ";";\ 118 for (i=1;i+1<=NF;++i)\ 119 if ($$(i)=="PNG_DATA_EXPORT")\ 120 print $$(i+1) ";";}\ 121 END{print "local: *; };"}' >$@.new 122 $(RM_F) $@ 123 mv $@.new $@ 124 125libpng-config: 126 ( cat scripts/libpng-config-head.in; \ 127 echo prefix=\"$(prefix)\"; \ 128 echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \ 129 echo L_opts=\"\"; \ 130 echo R_opts=\"\"; \ 131 echo libs=\"-lpng12\"; \ 132 echo all_libs=\"-lpng12 $(LIBADDFLAGS)\"; \ 133 cat scripts/libpng-config-body.in ) > libpng-config 134 chmod +x libpng-config 135 136$(LIBSO): $(LIBSOMAJ) 137 $(LN_SF) $(LIBSOMAJ) $(LIBSO) 138 139$(LIBSOMAJ): $(LIBSOVER) 140 $(LN_SF) $(LIBSOVER) $(LIBSOMAJ) 141 142$(LIBSOVER): $(OBJSDLL) libpng.syms 143 $(CC) -shared -Wl,-soname,$(LIBSOMAJ) \ 144 -Wl,-version-script,libpng.syms \ 145 -o $(LIBSOVER) \ 146 $(OBJSDLL) 147 148$(OLDSOVER): $(OBJSDLL) libpng.syms 149 $(CC) -shared -Wl,-soname,$(OLDSOMAJ) \ 150 -Wl,-version-script,libpng.syms \ 151 -o $(OLDSOVER) \ 152 $(OBJSDLL) 153 154pngtest: pngtest.o $(LIBSO) 155 $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS) 156 157pngtest-static: pngtest.o libpng.a 158 $(CC) -o pngtest-static $(CFLAGS) pngtest.o $(LDFLAGS_A) 159 160test: pngtest pngtest-static 161 @echo "" 162 @echo " Running pngtest dynamically linked with $(LIBSO):" 163 @echo "" 164 LD_LIBRARY_PATH=".:${LD_LIBRARY_PATH}" ./pngtest 165 @echo "" 166 @echo " Running pngtest statically linked with libpng.a:" 167 @echo "" 168 ./pngtest-static 169 170install-headers: png.h pngconf.h 171 -@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi 172 -@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi 173 cp png.h pngconf.h $(DI)/$(LIBNAME) 174 chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h 175 -@$(RM_F) $(DI)/png.h $(DI)/pngconf.h 176 -@$(RM_F) $(DI)/libpng 177 (cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .) 178 179install-static: install-headers libpng.a 180 -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi 181 cp libpng.a $(DL)/$(LIBNAME).a 182 chmod 644 $(DL)/$(LIBNAME).a 183 -@$(RM_F) $(DL)/libpng.a 184 (cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a) 185 186install-shared: install-headers $(LIBSOVER) libpng.pc \ 187 $(OLDSOVER) 188 -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi 189 -@$(RM_F) $(DL)/$(LIBSOVER)* $(DL)/$(LIBSO) 190 -@$(RM_F) $(DL)/$(LIBSOMAJ) 191 -@$(RM_F) $(DL)/$(OLDSO) 192 -@$(RM_F) $(DL)/$(OLDSOMAJ) 193 -@$(RM_F) $(DL)/$(OLDSOVER)* 194 cp $(LIBSOVER) $(DL) 195 cp $(OLDSOVER) $(DL) 196 chmod 755 $(DL)/$(LIBSOVER) 197 chmod 755 $(DL)/$(OLDSOVER) 198 (cd $(DL); \ 199 $(LN_SF) $(OLDSOVER) $(OLDSOMAJ); \ 200 $(LN_SF) $(OLDSOMAJ) $(OLDSO); \ 201 $(LN_SF) $(LIBSOVER) $(LIBSOMAJ); \ 202 $(LN_SF) $(LIBSOMAJ) $(LIBSO)) 203 -@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi 204 -@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc 205 -@$(RM_F) $(DL)/pkgconfig/libpng.pc 206 cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc 207 chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc 208 (cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc) 209 210install-man: libpng.3 libpngpf.3 png.5 211 -@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi 212 -@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi 213 -@$(RM_F) $(DM)/man3/libpng.3 214 -@$(RM_F) $(DM)/man3/libpngpf.3 215 cp libpng.3 $(DM)/man3 216 cp libpngpf.3 $(DM)/man3 217 -@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi 218 -@$(RM_F) $(DM)/man5/png.5 219 cp png.5 $(DM)/man5 220 221install-config: libpng-config 222 -@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi 223 -@$(RM_F) $(DB)/libpng-config 224 -@$(RM_F) $(DB)/$(LIBNAME)-config 225 cp libpng-config $(DB)/$(LIBNAME)-config 226 chmod 755 $(DB)/$(LIBNAME)-config 227 (cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config) 228 229install: install-static install-shared install-man install-config 230 231# If you installed in $(DESTDIR), test-installed won't work until you 232# move the library to its final location. Use test-dd to test it 233# before then. 234 235test-dd: 236 echo 237 echo Testing installed dynamic shared library in $(DL). 238 $(CC) -I$(DI) -I$(ZLIBINC) \ 239 `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \ 240 -L$(DL) -L$(ZLIBLIB) -Wl, -rpath,$(DL) -Wl,-rpath,$(ZLIBLIB) \ 241 -o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags` 242 ./pngtestd pngtest.png 243 244test-installed: 245 $(CC) -I$(ZLIBINC) \ 246 `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \ 247 -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) \ 248 -o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags` 249 ./pngtesti pngtest.png 250 251clean: 252 $(RM_F) *.o libpng.a libpng.syms pngtest pngout.png libpng-config \ 253 $(LIBSO) $(LIBSOMAJ)* pngtest-static pngtesti \ 254 $(OLDSOVER) \ 255 libpng.pc 256 257DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO 258writelock: 259 chmod a-w *.[ch35] $(DOCS) scripts/* 260 261# DO NOT DELETE THIS LINE -- make depend depends on it. 262 263png.o png.pic.o: png.h pngconf.h 264pngerror.o pngerror.pic.o: png.h pngconf.h 265pngrio.o pngrio.pic.o: png.h pngconf.h 266pngwio.o pngwio.pic.o: png.h pngconf.h 267pngmem.o pngmem.pic.o: png.h pngconf.h 268pngset.o pngset.pic.o: png.h pngconf.h 269pngget.o pngget.pic.o: png.h pngconf.h 270pngread.o pngread.pic.o: png.h pngconf.h 271pngrtran.o pngrtran.pic.o: png.h pngconf.h 272pngrutil.o pngrutil.pic.o: png.h pngconf.h 273pngtrans.o pngtrans.pic.o: png.h pngconf.h 274pngwrite.o pngwrite.pic.o: png.h pngconf.h 275pngwtran.o pngwtran.pic.o: png.h pngconf.h 276pngwutil.o pngwutil.pic.o: png.h pngconf.h 277pngpread.o pngpread.pic.o: png.h pngconf.h 278 279pngtest.o: png.h pngconf.h 280
