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libpng/INSTALL

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Installing libpng version 1.0.5 - October 5, 1999
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Before installing libpng, you must first install zlib. zlib
can usually be found wherever you got libpng. zlib can be
placed in another directory, at the same level as libpng.
Note that your system might already have a preinstalled
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zlib, but you will still need to have access to the
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zlib.h and zconf.h include files that correspond to the
version of zlib that's installed.
You can rename the directories that you downloaded (they
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might be called "libpng-1.0.5" or "lpng103" and "zlib-1.1.3"
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or "zlib113") so that you have directories called "zlib" and "libpng".
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Your directory structure should look like this:
.. (the parent directory)
libpng (this directory)
INSTALL (this file)
README
*.h
*.c
scripts
makefile.*
pngtest.png
etc.
zlib
README
*.h
*.c
contrib
etc.
First enter the zlib directory and follow the instructions
in zlib/README. Then come back here and choose the
appropriate makefile.sys in the scripts directory.
The files that are presently available in the scripts directory
include
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descrip.mms => VMS makefile for MMS or MMK
makefile.std => Generic UNIX makefile
makefile.knr => Archaic UNIX Makefile that converts files with
ansi2knr (Requires ansi2knr.c from
ftp://ftp.cs.wisc.edu/ghost)
makefile.dec => DEC Alpha UNIX makefile
makefile.hpux => HPUX (10.20 and 11.00) makefile
makefile.sgi => Silicon Graphics IRIX makefile
makefile.sunos => Sun makefile
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makefile.solaris => Solaris 2.X makefile (gcc, creates libpng.so.2.1.0.5)
makefile.linux => Linux/ELF makefile (gcc, creates libpng.so.2.1.0.5)
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makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc
makefile.mips => MIPS makefile
makefile.acorn => Acorn makefile
makefile.amiga => Amiga makefile
smakefile.ppc => AMIGA smakefile for SAS C V6.58/7.00 PPC compiler
(Requires SCOPTIONS, copied from scripts/SCOPTIONS.ppc)
makefile.atari => Atari makefile
makefile.beos => BEOS makefile for X86
makefile.borland => Borland makefile
build.bat => MS-DOS batch file for Borland compiler
makefile.dj2 => DJGPP 2 makefile
makefile.msc => Microsoft C makefile
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makefile.vcawin32 => makefile for Microsoft Visual C++ 5.0 and later (uses
assembler code)
makefile.vcwin32 => makefile for Microsoft Visual C++ 4.0 and later (does not
use assembler code)
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makefile.turboc3 => Turbo C 3.0 makefile
makefile.os2 => OS/2 Makefile (gcc and emx, requires pngos2.def)
pngos2.def => OS/2 module definition file used by makefile.os2
makefile.watcom => Watcom 10a+ Makefile, 32-bit flat memory model
makevms.com => VMS build script
pngdll.mak => To make a png32bd.dll with Borland C++ 4.5
pngdef.pas => Defines for a png32bd.dll with Borland C++ 4.5
SCOPTIONS.ppc => Used with smakefile.ppc
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Copy the file (or files) that you need from the
scripts directory into this directory, for example
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MSDOS example: copy scripts\makefile.msd makefile
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UNIX example: cp scripts/makefile.std makefile
Read the makefile to see if you need to change any source or
target directories to match your preferences.
Then read pngconf.h to see if you want to make any configuration
changes.
Then just run "make test" which will create the libpng library in
this directory and run a quick test that reads the "pngtest.png"
file and writes a "pngout.png" file that should be identical to it.
Most of the makefiles will allow you to run "make install" to
put the library in its final resting place (if you want to
do that, run "make install" in the zlib directory first if necessary).
Further information can be found in the README and libpng.txt
files, in the individual makefiles, and in png.h, and the manual
pages libpng.3 and png.5.