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# makefile for libpng.a and libpng12.so on Linux ELF with gcc using MMX
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# Copyright 2002 Greg Roelofs and Glenn Randers-Pehrson
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# Copyright 1998-2001 Greg Roelofs
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# Copyright 1996-1997 Andreas Dilger
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# For conditions of distribution and use, see copyright notice in png.h
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# CAUTION: Do not use this makefile with gcc versions 2.7.2.2 and earlier.
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# WARNING: The assembler code in pnggccrd.c may not be thread safe.
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# NOTE: When testing MMX performance on a multitasking system, make sure
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# there are no floating-point programs (e.g., SETI@Home) running in
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# the background! Context switches between MMX and FPU are expensive.
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PNGVER = $(PNGMAJ).$(PNGMIN)
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# where "make install" puts libpng12.a, libpng12.so*,
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# libpng12/png.h and libpng12/pngconf.h
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# Prefix must be a full pathname.
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# Where the zlib library and include files are located.
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#ZLIBLIB=/usr/local/lib
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#ZLIBINC=/usr/local/include
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#ALIGN=-malign-loops=2 -malign-functions=2
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WARNMORE=-Wwrite-strings -Wpointer-arith -Wshadow \
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-Wmissing-declarations -Wtraditional -Wcast-align \
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-Wstrict-prototypes -Wmissing-prototypes #-Wconversion
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# for pgcc version 2.95.1, -O3 is buggy; don't use it.
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# Remove -DPNG_THREAD_UNSAFE_OK if you need thread safety
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CFLAGS=-DPNG_THREAD_UNSAFE_OK -DPNG_USE_PNGGCCRD -I$(ZLIBINC) -Wall \
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-O3 $(ALIGN) -funroll-loops \
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-fomit-frame-pointer # $(WARNMORE) -g -DPNG_DEBUG=5
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### for gcc 2.95.2 on 686:
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#CFLAGS=-DPNG_THREAD_UNSAFE_OK -DPNG_USE_PNGGCCRD -I$(ZLIBINC) -Wall -O3 \
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# -mcpu=i686 -malign-double -ffast-math -fstrict-aliasing \
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# $(ALIGN) -funroll-loops -funroll-all-loops -fomit-frame-pointer
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### for gcc 2.7.2.3 on 486 and up:
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#CFLAGS=-DPNG_THREAD_UNSAFE_OK -DPNG_USE_PNGGCCRD -I$(ZLIBINC) -Wall -O3 \
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# -m486 -malign-double -ffast-math \
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# $(ALIGN) -funroll-loops -funroll-all-loops -fomit-frame-pointer
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LDFLAGS=-L. -Wl,-rpath,. -L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) -lpng12 -lz -lm
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LDFLAGS_A=-L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) libpng.a -lz -lm
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INCPATH=$(prefix)/include
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# override DESTDIR= on the make install command line to easily support
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# installing into a temporary location. Example:
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# make install DESTDIR=/tmp/build/libpng
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# If you're going to install into a temporary location
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# via DESTDIR, $(DESTDIR)$(prefix) must already exist before
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# you execute make install.
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DB=$(DESTDIR)$(BINPATH)
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DI=$(DESTDIR)$(INCPATH)
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DL=$(DESTDIR)$(LIBPATH)
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DM=$(DESTDIR)$(MANPATH)
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OBJS = png.o pngset.o pngget.o pngrutil.o pngtrans.o pngwutil.o \
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pngread.o pngrio.o pngwio.o pngwrite.o pngrtran.o \
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pngwtran.o pngmem.o pngerror.o pngpread.o pnggccrd.o
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OBJSDLL = $(OBJS:.o=.pic.o)
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.SUFFIXES: .c .o .pic.o
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$(CC) -c $(CFLAGS) -fPIC -o $@ $*.c
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all: libpng.a $(LIBNAME).so pngtest pngtest-static libpng.pc libpng-config
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cat scripts/libpng.pc.in | sed -e s\!@PREFIX@!$(prefix)! > libpng.pc
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( cat scripts/libpng-config-head.in; \
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echo prefix=\"$(prefix)\"; \
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echo I_opts=\"-I$(INCPATH)/$(LIBNAME)\"; \
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echo cppflags=\"-DPNG_THREAD_UNSAFE_OK -DPNG_USE_PNGGCCRD\"; \
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echo L_opts=\"-L$(LIBPATH)\"; \
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echo R_opts=\"-Wl,-rpath,$(LIBPATH)\"; \
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echo libs=\"-lpng12 -lz -lm\"; \
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cat scripts/libpng-config-body.in ) > libpng-config
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chmod +x libpng-config
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pnggccrd.o: pnggccrd.c png.h pngconf.h
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$(CC) -c $(CFLAGS) -o $@ $*.c
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pnggccrd.pic.o: pnggccrd.c png.h pngconf.h
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$(CC) -c $(CFLAGS) -fPIC -o $@ pnggccrd.c
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$(LIBNAME).so: $(LIBNAME).so.$(PNGMAJ)
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ln -sf $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so
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$(LIBNAME).so.$(PNGMAJ): $(LIBNAME).so.$(PNGVER)
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ln -sf $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ)
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$(LIBNAME).so.$(PNGVER): $(OBJSDLL)
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$(CC) -shared -Wl,-soname,$(LIBNAME).so.$(PNGMAJ) \
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-o $(LIBNAME).so.$(PNGVER) \
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libpng.so.3.$(PNGMIN): $(OBJSDLL)
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$(CC) -shared -Wl,-soname,libpng.so.3 \
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-o libpng.so.3.$(PNGMIN) \
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pngtest: pngtest.o $(LIBNAME).so
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$(CC) -o pngtest $(CFLAGS) pngtest.o $(LDFLAGS)
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pngtest-static: pngtest.o libpng.a
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$(CC) -o pngtest-static $(CFLAGS) pngtest.o $(LDFLAGS_A)
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test: pngtest pngtest-static
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@echo " Running pngtest dynamically linked with $(LIBNAME).so:"
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@echo " Running pngtest statically linked with libpng.a:"
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install-headers: png.h pngconf.h
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-@if [ ! -d $(DI) ]; then mkdir $(DI); fi
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-@if [ ! -d $(DI)/$(LIBNAME) ]; then mkdir $(DI)/$(LIBNAME); fi
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cp png.h pngconf.h $(DI)/$(LIBNAME)
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chmod 644 $(DI)/$(LIBNAME)/png.h $(DI)/$(LIBNAME)/pngconf.h
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-@/bin/rm -f $(DI)/png.h $(DI)/pngconf.h
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-@/bin/rm -f $(DI)/libpng
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(cd $(DI); ln -sf $(LIBNAME) libpng; ln -sf $(LIBNAME)/* .)
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install-static: install-headers libpng.a
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-@if [ ! -d $(DL) ]; then mkdir $(DL); fi
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cp libpng.a $(DL)/$(LIBNAME).a
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chmod 644 $(DL)/$(LIBNAME).a
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-@/bin/rm -f $(DL)/libpng.a
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(cd $(DL); ln -sf $(LIBNAME).a libpng.a)
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install-shared: install-headers $(LIBNAME).so.$(PNGVER) libpng.pc \
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libpng.so.3.$(PNGMIN)
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-@if [ ! -d $(DL) ]; then mkdir $(DL); fi
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-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGVER)* $(DL)/$(LIBNAME).so
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-@/bin/rm -f $(DL)/$(LIBNAME).so.$(PNGMAJ)
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-@/bin/rm -f $(DL)/libpng.so
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-@/bin/rm -f $(DL)/libpng.so.3
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-@/bin/rm -f $(DL)/libpng.so.3.$(PNGMIN)*
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cp $(LIBNAME).so.$(PNGVER) $(DL)
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cp libpng.so.3.$(PNGMIN) $(DL)
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chmod 755 $(DL)/$(LIBNAME).so.$(PNGVER)
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chmod 755 $(DL)/libpng.so.3.$(PNGMIN)
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ln -sf libpng.so.3.$(PNGMIN) libpng.so.3; \
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ln -sf libpng.so.3 libpng.so; \
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ln -sf $(LIBNAME).so.$(PNGVER) $(LIBNAME).so.$(PNGMAJ); \
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ln -sf $(LIBNAME).so.$(PNGMAJ) $(LIBNAME).so)
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-@if [ ! -d $(DL)/pkgconfig ]; then mkdir $(DL)/pkgconfig; fi
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-@/bin/rm -f $(DL)/pkgconfig/$(LIBNAME).pc
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-@/bin/rm -f $(DL)/pkgconfig/libpng.pc
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cp libpng.pc $(DL)/pkgconfig/$(LIBNAME).pc
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chmod 644 $(DL)/pkgconfig/$(LIBNAME).pc
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(cd $(DL)/pkgconfig; ln -sf $(LIBNAME).pc libpng.pc)
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install-man: libpng.3 libpngpf.3 png.5
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-@if [ ! -d $(DM) ]; then mkdir $(DM); fi
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-@if [ ! -d $(DM)/man3 ]; then mkdir $(DM)/man3; fi
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-@/bin/rm -f $(DM)/man3/libpng.3
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-@/bin/rm -f $(DM)/man3/libpngpf.3
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cp libpng.3 $(DM)/man3
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cp libpngpf.3 $(DM)/man3
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-@if [ ! -d $(DM)/man5 ]; then mkdir $(DM)/man5; fi
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-@/bin/rm -f $(DM)/man5/png.5
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install-config: libpng-config
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-@if [ ! -d $(DB) ]; then mkdir $(DB); fi
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-@/bin/rm -f $(DB)/libpng-config
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-@/bin/rm -f $(DB)/$(LIBNAME)-config
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cp libpng-config $(DB)/$(LIBNAME)-config
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chmod 755 $(DB)/$(LIBNAME)-config
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(cd $(DB); ln -sf $(LIBNAME)-config libpng-config)
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install: install-static install-shared install-man install-config
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# If you installed in $(DESTDIR), test-installed won't work until you
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# move the library to its final location. Use test-dd to test it
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echo Testing installed dynamic shared library in $(DL).
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$(CC) -I$(DI) -I$(ZLIBINC) \
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`$(BINPATH)/libpng12-config --cflags` pngtest.c \
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-L$(DL) -L$(ZLIBLIB) -W1, -rpath,$(DL) -Wl,-rpath,$(ZLIBLIB) \
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-o pngtestd `$(BINPATH)/libpng12-config --ldflags`
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./pngtestd pngtest.png
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`$(BINPATH)/libpng12-config --cflags` pngtest.c \
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-L$(ZLIBLIB) -Wl,-rpath,$(ZLIBLIB) \
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-o pngtesti `$(BINPATH)/libpng12-config --ldflags`
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./pngtesti pngtest.png
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/bin/rm -f *.o libpng.a pngtest pngout.png libpng-config \
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$(LIBNAME).so $(LIBNAME).so.$(PNGMAJ)* pngtest-static pngtesti \
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libpng.so.3.$(PNGMIN) \
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DOCS = ANNOUNCE CHANGES INSTALL KNOWNBUG LICENSE README TODO Y2KINFO
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chmod a-w *.[ch35] $(DOCS) scripts/*
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png.o png.pic.o: png.h pngconf.h png.c
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pngerror.o pngerror.pic.o: png.h pngconf.h pngerror.c
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pngrio.o pngrio.pic.o: png.h pngconf.h pngrio.c
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pngwio.o pngwio.pic.o: png.h pngconf.h pngwio.c
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pngmem.o pngmem.pic.o: png.h pngconf.h pngmem.c
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pngset.o pngset.pic.o: png.h pngconf.h pngset.c
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pngget.o pngget.pic.o: png.h pngconf.h pngget.c
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pngread.o pngread.pic.o: png.h pngconf.h pngread.c
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pngrtran.o pngrtran.pic.o: png.h pngconf.h pngrtran.c
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pngrutil.o pngrutil.pic.o: png.h pngconf.h pngrutil.c
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pngtrans.o pngtrans.pic.o: png.h pngconf.h pngtrans.c
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pngwrite.o pngwrite.pic.o: png.h pngconf.h pngwrite.c
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pngwtran.o pngwtran.pic.o: png.h pngconf.h pngwtran.c
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pngwutil.o pngwutil.pic.o: png.h pngconf.h pngwutil.c
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pngpread.o pngpread.pic.o: png.h pngconf.h pngpread.c
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pngtest.o: png.h pngconf.h pngtest.c