1# makefile for libpng.a and libpng16.so on Linux ELF with gcc
  2# Copyright (C) 1998,1999,2002,2006,2008,2010-2014,2017 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
 46#WARNMORE=-Wwrite-strings -Wpointer-arith \
 47#	-Wmissing-declarations -Wtraditional -Wcast-align \
 48#	-Wstrict-prototypes -Wmissing-prototypes
 49
 50# for pgcc version 2.95.1, -O3 is buggy; don't use it.
 51
 52CPPFLAGS=-I$(ZLIBINC)
 53CPPFLAGS += -DPNG_ARM_NEON
 54CPPFLAGS += -DPNG_MIPS_MSA
 55CPPFLAGS += -DPNG_INTEL_SSE
 56CPPFLAGS += -DPNG_POWERPC_VSX
 57CPPFLAGS+=-ansi -pedantic -Wextra -Wall -Wshadow -Wno-sign-conversion
 58CPPFLAGS+=-W -Wall -Wconversion $(ALIGN)
 59# CPPFLAGS+=$(WARNMORE)
 60CFLAGS= -O3 -funroll-loops
 61
 62LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng16 -lz -lm
 63LDFLAGS_A=-L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) libpng.a -lz -lm
 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
 85# Pre-built configuration
 86# See scripts/pnglibconf.mak for more options
 87PNGLIBCONF_H_PREBUILT = scripts/pnglibconf.h.prebuilt
 88
 89OBJS =  png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
 90	pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
 91	pngwtran.o pngmem.o pngerror.o pngpread.o \
 92	arm/arm_init.o arm/filter_neon_intrinsics.o \
 93	mips/mips_init.o mips/filter_msa_intrinsics.o \
 94	intel/intel_init.o intel/filter_sse2_intrinsics.o\
 95	powerpc/powerpc_init.o powerpc/filter_vsx_intrinsics.o
 96
 97OBJSDLL = $(OBJS:.o=.pic.o)
 98
 99.SUFFIXES:      .c .o .pic.o
100
101.c.o:
102	$(CC) -c $(CPPFLAGS) $(CFLAGS) -o $@ $<
103
104.c.pic.o:
105	$(CC) -c $(CPPFLAGS) $(CFLAGS) -fPIC -o $@ $*.c
106
107all: libpng.a $(LIBSO) pngtest pngtest-static libpng.pc libpng-config
108
109pnglibconf.h: $(PNGLIBCONF_H_PREBUILT)
110	$(CP) $(PNGLIBCONF_H_PREBUILT) $@
111
112libpng.a: $(OBJS)
113	$(AR_RC) $@ $(OBJS)
114	$(RANLIB) $@
115
116libpng.pc:
117	cat scripts/libpng.pc.in | sed -e s!@prefix@!$(prefix)! \
118	-e s!@exec_prefix@!$(exec_prefix)! \
119	-e s!@libdir@!$(LIBPATH)! \
120	-e s!@includedir@!$(INCPATH)! \
121	-e s!-lpng16!-lpng16\ -lz\ -lm! > libpng.pc
122
123libpng-config:
124	( cat scripts/libpng-config-head.in; \
125	echo prefix=\"$(prefix)\"; \
126	echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
127	echo L_opts=\"-L$(LIBPATH)\"; \
128	echo R_opts=\"-Wl,-rpath,$(LIBPATH)\"; \
129	echo libs=\"-lpng16 -lz -lm\"; \
130	cat scripts/libpng-config-body.in ) > libpng-config
131	chmod +x libpng-config
132
133$(LIBSO): $(LIBSOMAJ)
134	$(LN_SF) $(LIBSOMAJ) $(LIBSO)
135
136$(LIBSOMAJ): $(OBJSDLL)
137	$(CC) -shared -Wl,-soname,$(LIBSOMAJ) -o $(LIBSOMAJ) $(OBJSDLL)
138
139pngtest: pngtest.o $(LIBSO)
140	$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
141
142pngtest-static: pngtest.o libpng.a
143	$(CC) -o pngtest-static $(CFLAGS) pngtest.o $(LDFLAGS_A)
144
145test: pngtest pngtest-static
146	@echo ""
147	@echo "   Running pngtest dynamically linked with $(LIBSO):"
148	@echo ""
149	./pngtest
150	@echo ""
151	@echo "   Running pngtest statically linked with libpng.a:"
152	@echo ""
153	./pngtest-static
154
155install-headers: png.h pngconf.h pnglibconf.h
156	-@if [ ! -d $(DI) ]; then $(MKDIR_P) $(DI); fi
157	-@if [ ! -d $(DI)/$(LIBNAME) ]; then $(MKDIR_P) $(DI)/$(LIBNAME); fi
158	cp png.h pngconf.h pnglibconf.h $(DI)/$(LIBNAME)
159	chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h $(DI)/$(LIBNAME)/pnglibconf.h
160	-@$(RM_F) $(DI)/png.h $(DI)/pngconf.h $(DI)/pnglibconf.h
161	-@$(RM_F) $(DI)/libpng
162	(cd $(DI); $(LN_SF) $(LIBNAME) libpng; $(LN_SF) $(LIBNAME)/* .)
163
164install-static: install-headers libpng.a
165	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
166	cp libpng.a $(DL)/$(LIBNAME).a
167	chmod 644 $(DL)/$(LIBNAME).a
168	-@$(RM_F) $(DL)/libpng.a
169	(cd $(DL); $(LN_SF) $(LIBNAME).a libpng.a)
170
171install-shared: install-headers $(LIBSOMAJ) libpng.pc
172	-@if [ ! -d $(DL) ]; then $(MKDIR_P) $(DL); fi
173	-@$(RM_F) $(DL)/$(LIBSO)
174	-@$(RM_F) $(DL)/$(LIBSOREL)
175	-@$(RM_F) $(DL)/$(OLDSO)
176	cp $(LIBSOMAJ) $(DL)/$(LIBSOREL)
177	chmod 755 $(DL)/$(LIBSOREL)
178	(cd $(DL); \
179	$(LN_SF) $(LIBSOREL) $(LIBSO); \
180	$(LN_SF) $(LIBSO) $(OLDSO))
181
182	-@if [ ! -d $(DL)/pkgconfig ]; then $(MKDIR_P) $(DL)/pkgconfig; fi
183	-@$(RM_F) $(DL)/pkgconfig/$(LIBNAME).pc
184	-@$(RM_F) $(DL)/pkgconfig/libpng.pc
185	cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
186	chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
187	(cd $(DL)/pkgconfig; $(LN_SF) $(LIBNAME).pc libpng.pc)
188
189install-man: libpng.3 libpngpf.3 png.5
190	-@if [ ! -d $(DM) ]; then $(MKDIR_P) $(DM); fi
191	-@if [ ! -d $(DM)/man3 ]; then $(MKDIR_P) $(DM)/man3; fi
192	-@$(RM_F) $(DM)/man3/libpng.3
193	-@$(RM_F) $(DM)/man3/libpngpf.3
194	cp libpng.3 $(DM)/man3
195	cp libpngpf.3 $(DM)/man3
196	-@if [ ! -d $(DM)/man5 ]; then $(MKDIR_P) $(DM)/man5; fi
197	-@$(RM_F) $(DM)/man5/png.5
198	cp png.5 $(DM)/man5
199
200install-config: libpng-config
201	-@if [ ! -d $(DB) ]; then $(MKDIR_P) $(DB); fi
202	-@$(RM_F) $(DB)/libpng-config
203	-@$(RM_F) $(DB)/$(LIBNAME)-config
204	cp libpng-config $(DB)/$(LIBNAME)-config
205	chmod 755 $(DB)/$(LIBNAME)-config
206	(cd $(DB); $(LN_SF) $(LIBNAME)-config libpng-config)
207
208install: install-static install-shared install-man install-config
209
210# If you installed in $(DESTDIR), test-installed won't work until you
211# move the library to its final location.  Use test-dd to test it
212# before then.
213
214test-dd:
215	echo
216	echo Testing installed dynamic shared library in $(DL).
217	$(CC) -I$(DI) $(CPPFLAGS) \
218	   `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
219	   -L$(DL) -L$(ZLIBLIB) -Wl, -rpath,$(DL) -Wl,-rpath,$(ZLIBLIB) \
220	   -o pngtestd `$(BINPATH)/$(LIBNAME)-config --ldflags`
221	./pngtestd pngtest.png
222
223test-installed:
224	$(CC) $(CPPFLAGS) \
225	   `$(BINPATH)/$(LIBNAME)-config --cflags` pngtest.c \
226	   -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) \
227	   -o pngtesti `$(BINPATH)/$(LIBNAME)-config --ldflags`
228	./pngtesti pngtest.png
229
230clean:
231	$(RM_F) *.o libpng.a pngtest pngout.png libpng-config \
232	$(LIBSO) $(LIBSOMAJ)* pngtest-static pngtesti \
233	libpng.pc pnglibconf.h
234
235DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
236writelock:
237	chmod a-w *.[ch35] $(DOCS) scripts/*
238
239# DO NOT DELETE THIS LINE -- make depend depends on it.
240
241png.o png.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
242pngerror.o pngerror.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
243pngrio.o pngrio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
244pngwio.o pngwio.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
245pngmem.o pngmem.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
246pngset.o pngset.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
247pngget.o pngget.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
248pngread.o pngread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
249pngrtran.o pngrtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
250pngrutil.o pngrutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
251pngtrans.o pngtrans.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
252pngwrite.o pngwrite.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
253pngwtran.o pngwtran.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
254pngwutil.o pngwutil.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
255pngpread.o pngpread.pic.o: png.h pngconf.h pnglibconf.h pngpriv.h pngstruct.h pnginfo.h pngdebug.h
256arm/arm_init.o arm/arm_init.o: pngpriv.h
257arm/filter_neon_intrinsics.o arm/filter_neon_intrinsics.pic.o: pngpriv.h
258mips/mips_init.o mips/mips_init.pic.o: pngpriv.h
259mips/filter_msa_intrinsics.o mips/filter_msa_intrinsics.pic.:  pngpriv.h
260intel/intel_init.o intel/intel_init.pic.:  pngpriv.h
261intel/filter_sse2_intrinsics.o intel/filter_sse2_intrinsics.pic.:  pngpriv.h
262powerpc/powerpc_init.o powerpc/powerpc_init.pic.:  pngpriv.h
263powerpc/filter_vsx_intrinsics.o powerpc/filter_vsx_intrinsics.pic.:  pngpriv.h
264
265pngtest.o: png.h pngconf.h pnglibconf.h