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1
2 Installing libpng version 1.0.1 March 15, 1998
3
4 Before installing libpng, you must first install zlib. zlib
5 can usually be found wherever you got libpng. zlib can be
6 placed in another directory, at the same level as libpng.
7 Note that your system might already have a preinstalled
8 zlib, but you will still need to have access to the
9 zlib.h and zconf.h include files that correspond to the
10 version of zlib that's installed.
11
12 You can rename the directories that you downloaded (they
13 might be called "libpng-1.0.1 or "lpng100" and "zlib-1.1.1"
14 or "zlib111") so that you have directories called "zlib" and "libpng".
15
16 Your directory structure should look like this:
17
18 .. (the parent directory)
19 libpng (this directory)
20 INSTALL (this file)
21 README
22 *.h
23 *.c
24 scripts
25 makefile.*
26 pngtest.png
27 etc.
28 zlib
29 README
30 *.h
31 *.c
32 contrib
33 etc.
34
35 First enter the zlib directory and follow the instructions
36 in zlib/README. Then come back here and choose the
37 appropriate makefile.sys in the scripts directory.
38 The files that are presently available in the scripts directory
39 include
40
41 descrip.mms => VMS makefile for MMS or MMK
42 makefile.std => Generic UNIX makefile
43 makefile.knr => Archaic UNIX Makefile that converts files with ansi2knr
44 makefile.dec => DEC Alpha UNIX makefile
45 makefile.sgi => Silicon Graphics IRIX makefile
46 makefile.sun => Sun makefile
47 makefile.s2x => Solaris 2.X makefile (gcc, creates libpng.so.2.1.0)
48 makefile.lnx => Linux/ELF makefile (gcc, creates libpng.so.2.1.0)
49 makefile.mip => MIPS makefile
50 makefile.aco => Acorn makefile
51 makefile.ama => Amiga makefile
52 smakefile.ppc => AMIGA smakefile for SAS C V6.58/7.00 PPC compiler
53 (Requires SCOPTIONS, copied from scripts/SCOPTIONS.ppc)
54 makefile.atr => Atari makefile
55 makefile.bor => Borland makefile
56 build.bat => MS-DOS batch file for Borland compiler
57 makefile.dj2 => DJGPP 2 makefile
58 makefile.msc => Microsoft C makefile
59 makefile.tc3 => Turbo C 3.0 makefile
60 makefile.os2 => OS/2 Makefile (gcc and emx, requires pngos2.def)
61 pngos2.def => OS/2 module definition file used by makefile.os2
62 makefile.wat => Watcom 10a+ Makefile, 32-bit flat memory model
63 makevms.com => VMS build script
64
65 Copy the file (or files) that you need from the
66 scripts directory into this directory, for example
67
68 MSDOS example: copy scripts\makefile.msd makefile
69 UNIX example: cp scripts/makefile.std makefile
70
71 Read the makefile to see if you need to change any source or
72 target directories to match your preferences.
73
74 Then read pngconf.h to see if you want to make any configuration
75 changes.
76
77 Then just run "make test" which will create the libpng library in
78 this directory and run a quick test that reads the "pngtest.png"
79 file and writes a "pngout.png" file that should be identical to it.
80
81 Most of the makefiles will allow you to run "make install" to
82 put the library in its final resting place (if you want to
83 do that, run "make install" in the zlib directory first if necessary).
84
85 Further information can be found in the README and libpng.txt
86 files, in the individual makefiles, and in png.h, and the manual
87 pages libpng.3 and png.5.