1 # makefile for libpng.a and libpng17.so on Linux ELF with gcc
2 # Copyright (C) 1998, 1999, 2002, 2006, 2008, 2010-2014 Greg Roelofs
3 # and Glenn Randers-Pehrson
4 # Copyright (C) 1996, 1997 Andreas Dilger
6 # This code is released under the libpng license.
7 # For conditions of distribution and use, see the disclaimer
10 # Modified for Debian by Junichi Uekawa and Josselin Mouette
11 # Major modifications are:
12 # * link libpng explicitly with libz and libm
13 # * $(OLDSO).17 is a symlink rather than a different library
20 # Shared library names:
22 LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
23 LIBSOREL=$(LIBSOMAJ).$(RELEASE)
35 # where "make install" puts libpng17.a, libpng17.so*,
36 # libpng17/png.h, libpng17/pngconf.h, and libpng17/pnglibconf.h
37 # Prefix must be a full pathname.
41 # Where the zlib library and include files are located.
42 ZLIBLIB=/usr/local/lib
43 ZLIBINC=/usr/local/include
49 #ALIGN=-malign-loops=2 -malign-functions=2
51 WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
52 -Wmissing-declarations -Wtraditional -Wcast-align \
53 -Wstrict-prototypes -Wmissing-prototypes #-Wconversion
55 # for pgcc version 2.95.1, -O3 is buggy; don't use it.
57 CPPFLAGS=-D_REENTRANT # -DPNG_DEBUG=5
58 CFLAGS=-W -Wall -O2 $(ALIGN) # $(WARNMORE) -g
61 LDFLAGS_A=libpng.a -lz -lm
65 INCPATH=$(prefix)/include
66 LIBPATH=$(exec_prefix)/lib
68 BINPATH=$(exec_prefix)/bin
70 # override DESTDIR= on the make install command line to easily support
71 # installing into a temporary location. Example:
73 # make install DESTDIR=/tmp/build/libpng
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.
80 DB=$(DESTDIR)$(BINPATH)
81 DI=$(DESTDIR)$(INCPATH)
82 DL=$(DESTDIR)$(LIBPATH)
83 DM=$(DESTDIR)$(MANPATH)
85 OBJS = 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
89 OBJSDLL = $(OBJS:.o=.pic.o)
91 .SUFFIXES: .c .o .pic.o
94 $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
97 $(CC) -c $(CFLAGS) -fPIC -o $@ $*.c
99 all: libpng.a $(LIBSO) pngtest pngtest-static libpng.pc libpng-config
101 # see scripts/pnglibconf.mak for more options
102 pnglibconf.h: scripts/pnglibconf.h.prebuilt
103 cp scripts/pnglibconf.h.prebuilt $@
110 cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
111 -e s!@exec_prefix@!$(exec_prefix)! \
112 -e s!@libdir@!$(LIBPATH)! \
113 -e s!@includedir@!$(INCPATH)! \
114 -e s!-lpng17!-lpng17\ -lz\ -lm! > libpng.pc
116 libpng.syms: png.h pngconf.h pnglibconf.h
117 $(CC) $(CPPFLAGS) $(CFLAGS) -E -DPNG_BUILDSYMS -DPNG_INTERNAL png.h |\
118 awk -F '[\t [\\]();]' -v PNGMAJ=$(PNGMAJ) 'BEGIN{printf("PNG17_%s {global:\n",PNGMAJ)}\
119 { for (i=1;i+2<=NF;++i)\
120 if ($$(i)=="PNG_FUNCTION_EXPORT" && $$(i+2)=="END")\
122 for (i=1;i+1<=NF;++i)\
123 if ($$(i)=="PNG_DATA_EXPORT")\
125 END{print "local: *; };"}' >$@.new
130 ( cat scripts/libpng-config-head.in; \
131 echo prefix=\"$(prefix)\"; \
132 echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
135 echo libs=\"-lpng17\"; \
136 echo all_libs=\"-lpng17 $(LIBADDFLAGS)\"; \
137 cat scripts/libpng-config-body.in ) > libpng-config
138 chmod +x libpng-config
140 $(LIBSO): $(LIBSOMAJ)
141 $(LN_SF) $(LIBSOMAJ) $(LIBSO)
143 $(LIBSOMAJ): $(OBJSDLL) libpng.syms
144 $(CC) -shared -Wl,-soname,$(LIBSOMAJ) \
145 -Wl,-version-script,libpng.syms \
149 pngtest: pngtest.o $(LIBSO)
150 $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
152 pngtest-static: pngtest.o libpng.a
153 $(CC) -o pngtest-static $(CFLAGS) pngtest.o $(LDFLAGS_A)
155 test: pngtest pngtest-static
157 @echo " Running pngtest dynamically linked with $(LIBSO):"
159 LD_LIBRARY_PATH=".:${LD_LIBRARY_PATH}" ./pngtest
161 @echo " Running pngtest statically linked with libpng.a:"
165 install-headers: png.h pngconf.h pnglibconf.h
166 -@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
167 -@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
168 cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
169 chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h $(DI)/$(LIBNAME)/pnglibconf.h
170 -@$(RM_F) $(DI)/png.h $(DI)/pngconf.h $(DI)/pnglibconf.h
171 -@$(RM_F) $(DI)/libpng
172 (cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
174 install-static: install-headers libpng.a
175 -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
176 cp libpng.a $(DL)/$(LIBNAME).a
177 chmod 644 $(DL)/$(LIBNAME).a
178 -@$(RM_F) $(DL)/libpng.a
179 (cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
181 install-shared: install-headers $(LIBSOMAJ) libpng.pc
182 -@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
183 -@$(RM_F) $(DL)/$(LIBSO)
184 -@$(RM_F) $(DL)/$(LIBSOREL)
185 -@$(RM_F) $(DL)/$(OLDSO)
186 cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
187 chmod 755 $(DL)/$(LIBSOREL)
189 $(LN_SF) $(LIBSOREL) $(LIBSO); \
190 $(LN_SF) $(LIBSO) $(OLDSO))
191 -@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
192 -@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
193 -@$(RM_F) $(DL)/pkgconfig/libpng.pc
194 cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
195 chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
196 (cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
198 install-man: libpng.3 libpngpf.3 png.5
199 -@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
200 -@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
201 -@$(RM_F) $(DM)/man3/libpng.3
202 -@$(RM_F) $(DM)/man3/libpngpf.3
203 cp libpng.3 $(DM)/man3
204 cp libpngpf.3 $(DM)/man3
205 -@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
206 -@$(RM_F) $(DM)/man5/png.5
209 install-config: libpng-config
210 -@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
211 -@$(RM_F) $(DB)/libpng-config
212 -@$(RM_F) $(DB)/$(LIBNAME)-config
213 cp libpng-config $(DB)/$(LIBNAME)-config
214 chmod 755 $(DB)/$(LIBNAME)-config
215 (cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
217 install: install-static install-shared install-man install-config
219 # If you installed in $(DESTDIR), test-installed won't work until you
220 # move the library to its final location. Use test-dd to test it
225 echo Testing installed dynamic shared library in $(DL).
226 $(CC) -I$(DI) $(CPPFLAGS) \
227 `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
228 -L$(DL) -L$(ZLIBLIB) -Wl, -rpath,$(DL) -Wl,-rpath,$(ZLIBLIB) \
229 -o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
230 ./pngtestd pngtest.png
234 `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
235 -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) \
236 -o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
237 ./pngtesti pngtest.png
240 $(RM_F) *.o libpng.a libpng.syms pngtest pngout.png libpng-config \
241 $(LIBSO) $(LIBSOMAJ)* pngtest-static pngtesti \
242 libpng.pc pnglibconf.h
244 DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
246 chmod a-w *.[ch35] $(DOCS) scripts/*
248 # DO NOT DELETE THIS LINE -- make depend depends on it.
250 png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
251 pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
252 pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
253 pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
254 pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
255 pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
256 pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
257 pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
258 pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
259 pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
260 pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
261 pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
262 pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
263 pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
264 pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
266 pngtest.o: png.h pngconf.h pnglibconf.h