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
6 # This code is released under the libpng license.
7 # For conditions of distribution and use, see the disclaimer
15 # Shared library names:
17 LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
18 LIBSOREL=$(LIBSOMAJ).$(RELEASE)
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.
36 # Where the zlib library and include files are located.
37 #ZLIBLIB=/usr/local/lib
38 #ZLIBINC=/usr/local/include
44 #ALIGN=-malign-loops=2 -malign-functions=2
46 WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
47 -Wmissing-declarations -Wtraditional -Wcast-align \
48 -Wstrict-prototypes -Wmissing-prototypes #-Wconversion
50 # for pgcc version 2.95.1, -O3 is buggy; don't use it.
52 CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
53 CFLAGS=-W -Wall -O3 -funroll-loops $(ALIGN) # $(WARNMORE) -g
55 LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng16 -lz -lm
56 LDFLAGS_A=-L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) libpng.a -lz -lm
58 INCPATH=$(prefix)/include
59 LIBPATH=$(exec_prefix)/lib
61 BINPATH=$(exec_prefix)/bin
63 # override DESTDIR= on the make install command line to easily support
64 # installing into a temporary location. Example:
66 # make install DESTDIR=/tmp/build/libpng
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.
73 DB=$(DESTDIR)$(BINPATH)
74 DI=$(DESTDIR)$(INCPATH)
75 DL=$(DESTDIR)$(LIBPATH)
76 DM=$(DESTDIR)$(MANPATH)
78 # Pre-built configuration
79 # See scripts/pnglibconf.mak for more options
80 PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
82 OBJS = 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
86 OBJSDLL = $(OBJS:.o=.pic.o)
88 .SUFFIXES: .c .o .pic.o
91 $(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
94 $(CC) -c $(CPPFLAGS) $(CFLAGS) -fPIC -o $@ $*.c
96 all: libpng.a $(LIBSO) pngtest pngtest-static libpng.pc libpng-config
98 pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
99 $(CP) $(PNGLIBCONF_H_PREBUILT) $@
106 cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
107 -e s!@exec_prefix@!$(exec_prefix)! \
108 -e s!@libdir@!$(LIBPATH)! \
109 -e s!@includedir@!$(INCPATH)! \
110 -e s!-lpng16!-lpng16\ -lz\ -lm! > libpng.pc
113 ( cat scripts/libpng-config-head.in; \
114 echo prefix=\"$(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
122 $(LIBSO): $(LIBSOMAJ)
123 $(LN_SF) $(LIBSOMAJ) $(LIBSO)
125 $(LIBSOMAJ): $(OBJSDLL)
126 $(CC) -shared -Wl,-soname,$(LIBSOMAJ) -o $(LIBSOMAJ) $(OBJSDLL)
128 pngtest: pngtest.o $(LIBSO)
129 $(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
131 pngtest-static: pngtest.o libpng.a
132 $(CC) -o pngtest-static $(CFLAGS) pngtest.o $(LDFLAGS_A)
134 test: pngtest pngtest-static
136 @echo " Running pngtest dynamically linked with $(LIBSO):"
140 @echo " Running pngtest statically linked with libpng.a:"
144 install-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)/* .)
153 install-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)
160 install-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)
168 $(LN_SF) $(LIBSOREL) $(LIBSO); \
169 $(LN_SF) $(LIBSO) $(OLDSO))
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)
178 install-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
189 install-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)
197 install: install-static install-shared install-man install-config
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
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)/$(LIBNAME)-config --ldflags`
210 ./pngtestd pngtest.png
214 `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
215 -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) \
216 -o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
217 ./pngtesti pngtest.png
220 $(RM_F) *.o libpng.a pngtest pngout.png libpng-config \
221 $(LIBSO) $(LIBSOMAJ)* pngtest-static pngtesti \
222 libpng.pc pnglibconf.h
224 DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO
226 chmod a-w *.[ch35] $(DOCS) scripts/*
228 # DO NOT DELETE THIS LINE -- make depend depends on it.
230 png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
231 pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
232 pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
233 pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
234 pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
235 pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
236 pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
237 pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
238 pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
239 pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
240 pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
241 pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
242 pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
243 pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
244 pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
246 pngtest.o: png.h pngconf.h pnglibconf.h