src/png/INSTALL

   1
   2 Installing libpng version 1.2.6 - August 15, 2004
   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-1.2.6" or "lpng109" and "zlib-1.1.3"
  14 or "zlib113") 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           contrib
  25              gregbook
  26              msvctest
  27              pngminus
  28              pngsuite
  29              visupng
  30           projects
  31              beos
  32              borland
  33              msvc
  34              netware.txt
  35              wince.txt
  36           scripts
  37              makefile.*
  38           pngtest.png
  39           etc.
  40       zlib
  41           README
  42           *.h
  43           *.c
  44           contrib
  45           etc.
  46
  47 If the line endings in the files look funny, you may wish to get the other
  48 distribution of libpng.  It is available in both tar.gz (UNIX style line
  49 endings) and zip (DOS style line endings) formats.
  50
  51 If you are building libpng with MSVC, you can enter the libpng\msvc directory
  52 and follow the instructions in msvc\README.txt.
  53
  54 You can build libpng for WindowsCE by entering the downloading and installing
  55 the libpng\wince directory as instructed in the projects\wince.txt file, and
  56 then following the instructions in the README* files.  Similarly, you can
  57 build libpng for Netware as instructed in projects\netware.txt.
  58
  59 Else enter the zlib directory and follow the instructions in zlib/README,
  60 then come back here and choose the appropriate makefile.sys in the scripts
  61 directory.
  62
  63 The files that are presently available in the scripts directory
  64 include
  65
  66  makefile.std      =>  Generic UNIX makefile (cc, creates static libpng.a)
  67  makefile.linux    =>  Linux/ELF makefile (gcc, creates libpng12.so.0.1.2.6)
  68  makefile.gcmmx    =>  Linux/ELF makefile (gcc, creates libpng12.so.0.1.2.6,
  69                        uses assembler code tuned for Intel MMX platform)
  70  makefile.gcc      =>  Generic makefile (gcc, creates static libpng.a)
  71  makefile.knr      =>  Archaic UNIX Makefile that converts files with
  72                        ansi2knr (Requires ansi2knr.c from
  73                        ftp://ftp.cs.wisc.edu/ghost)
  74  makefile.aix      =>  AIX/gcc makefile
  75  makefile.cygwin   =>  Cygwin/gcc makefile
  76  makefile.darwin   =>  Darwin makefile, can use on MacosX
  77  makefile.dec      =>  DEC Alpha UNIX makefile
  78  makefile.hpgcc    =>  FreeBSD makefile
  79  makefile.hpgcc    =>  HPUX makefile using gcc
  80  makefile.hpux     =>  HPUX (10.20 and 11.00) makefile
  81  makefile.ibmc     =>  IBM C/C++ version 3.x for Win32 and OS/2 (static)
  82  makefile.intel    =>  Intel C/C++ version 4.0 and later
  83  libpng.icc        =>  Project file for IBM VisualAge/C++ version 4.0 or later
  84  makefile.netbsd   =>  NetBSD/cc makefile, uses PNGGCCRD, makes libpng.so.
  85  makefile.ne0bsd  =>  NetBSD/cc makefile, uses PNGGCCRD, makes libpng0.so
  86  makefile.openbsd  =>  OpenBSD makefile
  87  makefile.sgi      =>  Silicon Graphics IRIX makefile (cc, creates static lib)
  88  makefile.sggcc    =>  Silicon Graphics (gcc, creates libpng12.so.0.1.2.6)
  89  makefile.sunos    =>  Sun makefile
  90  makefile.solaris  =>  Solaris 2.X makefile (gcc, creates libpng12.so.0.1.2.6)
  91  makefile.so9      =>  Solaris 9 makefile (gcc, creates libpng12.so.0.1.2.6)
  92  makefile.32sunu   =>  Sun Ultra 32-bit makefile
  93  makefile.64sunu   =>  Sun Ultra 64-bit makefile
  94  makefile.sco      =>  For SCO OSr5  ELF and Unixware 7 with Native cc
  95  makefile.mips     =>  MIPS makefile
  96  makefile.acorn    =>  Acorn makefile
  97  makefile.amiga    =>  Amiga makefile
  98  smakefile.ppc     =>  AMIGA smakefile for SAS C V6.58/7.00 PPC compiler
  99                        (Requires SCOPTIONS, copied from scripts/SCOPTIONS.ppc)
 100  makefile.atari    =>  Atari makefile
 101  makefile.beos     =>  BEOS makefile for X86
 102  makefile.bor      =>  Borland makefile (uses bcc)
 103  makefile.bc32     =>  32-bit Borland C++ (all modules compiled in C mode)
 104  makefile.bd32     =>  To make a png32bd.dll with Borland C++ 4.5
 105  makefile.tc3      =>  Turbo C 3.0 makefile
 106  makefile.dj2      =>  DJGPP 2 makefile
 107  makefile.msc      =>  Microsoft C makefile
 108  makefile.vcawin32 =>  makefile for Microsoft Visual C++ 5.0 and later (uses
 109                        assembler code tuned for Intel MMX platform)
 110  makefile.vcwin32  =>  makefile for Microsoft Visual C++ 4.0 and later (does
 111                        not use assembler code)
 112  makefile.os2      =>  OS/2 Makefile (gcc and emx, requires pngos2.def)
 113  pngos2.def        =>  OS/2 module definition file used by makefile.os2
 114  makefile.watcom   =>  Watcom 10a+ Makefile, 32-bit flat memory model
 115  makevms.com       =>  VMS build script
 116  descrip.mms       =>  VMS makefile for MMS or MMK
 117  pngdef.pas        =>  Defines for a png32bd.dll with Borland C++ 4.5
 118  SCOPTIONS.ppc     =>  Used with smakefile.ppc
 119
 120 Copy the file (or files) that you need from the
 121 scripts directory into this directory, for example
 122
 123    MSDOS example: copy scripts\makefile.msc makefile
 124    UNIX example:    cp scripts/makefile.std makefile
 125
 126 Read the makefile to see if you need to change any source or
 127 target directories to match your preferences.
 128
 129 Then read pngconf.h to see if you want to make any configuration
 130 changes.
 131
 132 Then just run "make test" which will create the libpng library in
 133 this directory and run a quick test that reads the "pngtest.png"
 134 file and writes a "pngout.png" file that should be identical to it.
 135 Look for "9782 zero samples" in the output of the test.  For more
 136 confidence, you can run another test by typing "pngtest pngnow.png"
 137 and looking for "289 zero samples" in the output.  Also, you can
 138 run "pngtest -m *.png" in the "contrib/pngsuite" directory and compare
 139 your output with the result shown in contrib/pngsuite/README.
 140
 141 Most of the makefiles will allow you to run "make install" to
 142 put the library in its final resting place (if you want to
 143 do that, run "make install" in the zlib directory first if necessary).
 144 Some also allow you to run "make test-installed" after you have
 145 run "make install".
 146
 147 If you encounter a compiler error message complaining about the
 148 lines
 149       __png.h__ already includes setjmp.h;
 150       __dont__ include it again.;
 151 This means you have compiled another module that includes setjmp.h,
 152 which is hazardous because the two modules might not include exactly
 153 the same setjmp.h.  If you are sure that you know what you are doing
 154 and that they are exactly the same, then you can comment out or
 155 delete the two lines.  Better yet, use the cexcept interface
 156 instead, as demonstrated in contrib/visupng of the libpng distribution.
 157
 158 Further information can be found in the README and libpng.txt
 159 files, in the individual makefiles, in png.h, and the manual pages
 160 libpng.3 and png.5.