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
  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# Library name:
 11LIBNAME = libpng16
 12PNGMAJ = 16
 13RELEASE = 34
 14
 15# Shared library names:
 16LIBSO=$(LIBNAME).so
 17LIBSOMAJ=$(LIBNAME).so.$(PNGMAJ)
 18LIBSOREL=$(LIBSOMAJ).$(RELEASE)
 19OLDSO=libpng.so
 20
 21# Utilities:
 22AR_RC=ar rc
 23CC=gcc
 24MKDIR_P=mkdir -p
 25LN_SF=ln -sf
 26RANLIB=ranlib
 27CP=cp
 28RM_F=/bin/rm -f
 29
 30# where "make install" puts libpng16.a, libpng16.so*,
 31# libpng16/png.h, libpng16/pngconf.h, and libpng16/pnglibconf.h
 32# Prefix must be a full pathname.
 33prefix=/usr/local
 34exec_prefix=$(prefix)
 35
 36# Where the zlib library and include files are located.
 37#ZLIBLIB=/usr/local/lib
 38#ZLIBINC=/usr/local/include
 39ZLIBLIB=../zlib
 40ZLIBINC=../zlib
 41
 42ALIGN=
 43# for i386:
 44#ALIGN=-malign-loops=2 -malign-functions=2
 45
 46WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
 47	-Wmissing-declarations -Wtraditional -Wcast-align \
 48	-Wstrict-prototypes -Wmissing-prototypes #-Wconversion
 49
 50# for pgcc version 2.95.1, -O3 is buggy; don't use it.
 51
 52CPPFLAGS=-I$(ZLIBINC) # -DPNG_DEBUG=5
 53CFLAGS= -W -Wall -O3 -funroll-loops \
 54	$(ALIGN) # $(WARNMORE) -g -DPNG_DEBUG=5
 55
 56LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng16 -lz -lm
 57LDFLAGS_A=-L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) libpng.a -lz -lm
 58
 59INCPATH=$(prefix)/include
 60LIBPATH=$(exec_prefix)/lib
 61MANPATH=$(prefix)/man
 62BINPATH=$(exec_prefix)/bin
 63
 64# override DESTDIR= on the make install command line to easily support
 65# installing into a temporary location.  Example:
 66#
 67#    make install DESTDIR=/tmp/build/libpng
 68#
 69# If you're going to install into a temporary location
 70# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
 71# you execute make install.
 72DESTDIR=
 73
 74DB=$(DESTDIR)$(BINPATH)
 75DI=$(DESTDIR)$(INCPATH)
 76DL=$(DESTDIR)$(LIBPATH)
 77DM=$(DESTDIR)$(MANPATH)
 78
 79# Pre-built configuration
 80# See scripts/pnglibconf.mak for more options
 81PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
 82
 83OBJS =  png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
 84	pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
 85	pngwtran.o pngmem.o pngerror.o pngpread.o
 86
 87OBJSDLL = $(OBJS:.o=.pic.o)
 88
 89.SUFFIXES:      .c .o .pic.o
 90
 91.c.o:
 92	$(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
 93
 94.c.pic.o:
 95	$(CC) -c $(CPPFLAGS) $(CFLAGS) -fPIC -o $@ $*.c
 96
 97all: libpng.a $(LIBSO) pngtest pngtest-static libpng.pc libpng-config
 98
 99pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
100	$(CP) $(PNGLIBCONF_H_PREBUILT) $@
101
102libpng.a: $(OBJS)
103	$(AR_RC) $@ $(OBJS)
104	$(RANLIB) $@
105
106libpng.pc:
107	cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
108	-e s!@exec_prefix@!$(exec_prefix)! \
109	-e s!@libdir@!$(LIBPATH)! \
110	-e s!@includedir@!$(INCPATH)! \
111	-e s!-lpng16!-lpng16\ -lz\ -lm! > libpng.pc
112
113libpng-config:
114	( cat scripts/libpng-config-head.in; \
115	echo prefix=\"$(prefix)\"; \
116	echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
117	echo L_opts=\"-L$(LIBPATH)\"; \
118	echo R_opts=\"-Wl,-rpath,$(LIBPATH)\"; \
119	echo libs=\"-lpng16 -lz -lm\"; \
120	cat scripts/libpng-config-body.in ) > libpng-config
121	chmod +x libpng-config
122
123$(LIBSO): $(LIBSOMAJ)
124	$(LN_SF) $(LIBSOMAJ) $(LIBSO)
125
126$(LIBSOMAJ): $(OBJSDLL)
127	$(CC) -shared -Wl,-soname,$(LIBSOMAJ) -o $(LIBSOMAJ) $(OBJSDLL)
128
129pngtest: pngtest.o $(LIBSO)
130	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
131
132pngtest-static: pngtest.o libpng.a
133	$(CC) -o pngtest-static $(CFLAGS) pngtest.o $(LDFLAGS_A)
134
135test: pngtest pngtest-static
136	@echo ""
137	@echo "   Running pngtest dynamically linked with $(LIBSO):"
138	@echo ""
139	./pngtest
140	@echo ""
141	@echo "   Running pngtest statically linked with libpng.a:"
142	@echo ""
143	./pngtest-static
144
145install-headers: png.h pngconf.h pnglibconf.h
146	-@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
147	-@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
148	cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
149	chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h $(DI)/$(LIBNAME)/pnglibconf.h
150	-@$(RM_F) $(DI)/png.h $(DI)/pngconf.h $(DI)/pnglibconf.h
151	-@$(RM_F) $(DI)/libpng
152	(cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
153
154install-static: install-headers libpng.a
155	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
156	cp libpng.a $(DL)/$(LIBNAME).a
157	chmod 644 $(DL)/$(LIBNAME).a
158	-@$(RM_F) $(DL)/libpng.a
159	(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
160
161install-shared: install-headers $(LIBSOMAJ) libpng.pc
162	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
163	-@$(RM_F) $(DL)/$(LIBSO)
164	-@$(RM_F) $(DL)/$(LIBSOREL)
165	-@$(RM_F) $(DL)/$(OLDSO)
166	cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
167	chmod 755 $(DL)/$(LIBSOREL)
168	(cd $(DL); \
169	$(LN_SF) $(LIBSOREL) $(LIBSO); \
170	$(LN_SF) $(LIBSO) $(OLDSO))
171
172	-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
173	-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
174	-@$(RM_F) $(DL)/pkgconfig/libpng.pc
175	cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
176	chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
177	(cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
178
179install-man: libpng.3 libpngpf.3 png.5
180	-@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
181	-@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
182	-@$(RM_F) $(DM)/man3/libpng.3
183	-@$(RM_F) $(DM)/man3/libpngpf.3
184	cp libpng.3 $(DM)/man3
185	cp libpngpf.3 $(DM)/man3
186	-@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
187	-@$(RM_F) $(DM)/man5/png.5
188	cp png.5 $(DM)/man5
189
190install-config: libpng-config
191	-@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
192	-@$(RM_F) $(DB)/libpng-config
193	-@$(RM_F) $(DB)/$(LIBNAME)-config
194	cp libpng-config $(DB)/$(LIBNAME)-config
195	chmod 755 $(DB)/$(LIBNAME)-config
196	(cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
197
198install: install-static install-shared install-man install-config
199
200# If you installed in $(DESTDIR), test-installed won't work until you
201# move the library to its final location.  Use test-dd to test it
202# before then.
203
204test-dd:
205	echo
206	echo Testing installed dynamic shared library in $(DL).
207	$(CC) -I$(DI) $(CPPFLAGS) \
208	   `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
209	   -L$(DL) -L$(ZLIBLIB) -Wl, -rpath,$(DL) -Wl,-rpath,$(ZLIBLIB) \
210	   -o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
211	./pngtestd pngtest.png
212
213test-installed:
214	$(CC) $(CPPFLAGS) \
215	   `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
216	   -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) \
217	   -o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
218	./pngtesti pngtest.png
219
220clean:
221	$(RM_F) *.o libpng.a pngtest pngout.png libpng-config \
222	$(LIBSO) $(LIBSOMAJ)* pngtest-static pngtesti \
223	libpng.pc pnglibconf.h
224
225DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
226writelock:
227	chmod a-w *.[ch35] $(DOCS) scripts/*
228
229# DO NOT DELETE THIS LINE -- make depend depends on it.
230
231png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
232pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
233pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
234pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
235pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
236pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
237pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
238pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
239pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
240pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
241pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
242pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
243pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
244pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
245pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
246
247pngtest.o: png.h pngconf.h pnglibconf.h