2 Installing libpng version 1.0.9 - January 31, 2001
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.
12 You can rename the directories that you downloaded (they
13 might be called "libpng-1.0.9" or "lpng109" and "zlib-1.1.3"
14 or "zlib113") so that you have directories called "zlib" and "libpng".
16 Your directory structure should look like this:
18 .. (the parent directory)
19 libpng (this directory)
45 If the line endings in the files look funny, you may wish to get the other
46 distribution of libpng. It is available in both tar.gz (UNIX style line
47 endings) and zip (DOS style line endings) formats.
49 If you are building libpng with MSVC, you can enter the libpng\msvc directory
50 and follow the instructions in msvc\README.txt. You can build libpng for
51 WindowsCE by entering the libpng\wince directory and following the
52 instructions in the README* files.
54 Else enter the zlib directory and follow the instructions in zlib/README,
55 then come back here and choose the appropriate makefile.sys in the scripts
58 The files that are presently available in the scripts directory
61 makefile.std => Generic UNIX makefile (cc, creates static libpng.a)
62 makefile.linux => Linux/ELF makefile (gcc, creates libpng.so.2.1.0.9)
63 makefile.gcmmx => Linux/ELF makefile (gcc, creates libpng.so.2.1.0.9,
64 uses assembler code tuned for Intel MMX platform)
65 makefile.gcc => Generic makefile (gcc, creates static libpng.a)
66 makefile.knr => Archaic UNIX Makefile that converts files with
67 ansi2knr (Requires ansi2knr.c from
68 ftp://ftp.cs.wisc.edu/ghost)
69 makefile.aix => AIX makefile
70 makefile.cygwin => Cygwin/gcc makefile
71 makefile.dec => DEC Alpha UNIX makefile
72 makefile.hpux => HPUX (10.20 and 11.00) makefile
73 makefile.ibmc => IBM C/C++ version 3.x for Win32 and OS/2 (static)
74 makefile.intel => Intel C/C++ version 4.0 and later
75 libpng.icc => Project file for IBM VisualAge/C++ version 4.0 or later
76 makefile.macosx => MACOS X Makefile
77 makefile.sgi => Silicon Graphics IRIX makefile (cc, creates static lib)
78 makefile.sggcc => Silicon Graphics (gcc, creates libpng.so.2.1.0.9)
79 makefile.sunos => Sun makefile
80 makefile.solaris => Solaris 2.X makefile (gcc, creates libpng.so.2.1.0.9)
81 makefile.sco => For SCO OSr5 ELF and Unixware 7 with Native cc
82 makefile.mips => MIPS makefile
83 makefile.acorn => Acorn makefile
84 makefile.amiga => Amiga makefile
85 smakefile.ppc => AMIGA smakefile for SAS C V6.58/7.00 PPC compiler
86 (Requires SCOPTIONS, copied from scripts/SCOPTIONS.ppc)
87 makefile.atari => Atari makefile
88 makefile.beos => BEOS makefile for X86
89 makefile.bor => Borland makefile (uses bcc)
90 makefile.bc32 => 32-bit Borland C++ (all modules compiled in C mode)
91 makefile.bd32 => To make a png32bd.dll with Borland C++ 4.5
92 makefile.tc3 => Turbo C 3.0 makefile
93 makefile.dj2 => DJGPP 2 makefile
94 makefile.msc => Microsoft C makefile
95 makefile.vcawin32 => makefile for Microsoft Visual C++ 5.0 and later (uses
96 assembler code tuned for Intel MMX platform)
97 makefile.vcwin32 => makefile for Microsoft Visual C++ 4.0 and later (does
98 not use assembler code)
99 makefile.os2 => OS/2 Makefile (gcc and emx, requires pngos2.def)
100 pngos2.def => OS/2 module definition file used by makefile.os2
101 makefile.watcom => Watcom 10a+ Makefile, 32-bit flat memory model
102 makevms.com => VMS build script
103 descrip.mms => VMS makefile for MMS or MMK
104 pngdef.pas => Defines for a png32bd.dll with Borland C++ 4.5
105 SCOPTIONS.ppc => Used with smakefile.ppc
107 Copy the file (or files) that you need from the
108 scripts directory into this directory, for example
110 MSDOS example: copy scripts\makefile.msc makefile
111 UNIX example: cp scripts/makefile.std makefile
113 Read the makefile to see if you need to change any source or
114 target directories to match your preferences.
116 Then read pngconf.h to see if you want to make any configuration
119 Then just run "make test" which will create the libpng library in
120 this directory and run a quick test that reads the "pngtest.png"
121 file and writes a "pngout.png" file that should be identical to it.
122 Look for "9782 zero samples" in the output of the test. For more
123 confidence, you can run another test by typing "pngtest pngnow.png"
124 and looking for "289 zero samples" in the output. Also, you can
125 run "pngtest -m *.png" in the "contrib/pngsuite" directory and compare
126 your output with the result shown in contrib/pngsuite/README.
128 Most of the makefiles will allow you to run "make install" to
129 put the library in its final resting place (if you want to
130 do that, run "make install" in the zlib directory first if necessary).
132 Further information can be found in the README and libpng.txt
133 files, in the individual makefiles, in png.h, in the README files in
134 subdirectories of the LIB directory, and the manual pages libpng.3 and png.5.