src/png/INSTALL

   1
   2 Installing libpng version 1.2.7 - September 12, 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-1.2.7" or "lpng109" and "zlib-1.2.1"
  14 or "zlib121") 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              pngminus
  27              pngsuite
  28              visupng
  29           projects
  30              beos
  31              c5builder (Borland)
  32              visualc6 (msvc)
  33              netware.txt
  34              wince.txt
  35           scripts
  36              makefile.*
  37           pngtest.png
  38           etc.
  39       zlib
  40           README
  41           *.h
  42           *.c
  43           contrib
  44           etc.
  45
  46 If the line endings in the files look funny, you may wish to get the other
  47 distribution of libpng.  It is available in both tar.gz (UNIX style line
  48 endings) and zip (DOS style line endings) formats.
  49
  50
  51 If you are building libpng with MSVC, you can enter the
  52 libpng projects\visualc6 directory and follow the instructions in
  53 projects\visualc6\README.txt.
  54
  55 You can build libpng for WindowsCE by downloading and installing
  56 the projects\wince directory as instructed in the projects\wince.txt file, and
  57 then following the instructions in the README* files.  Similarly, you can
  58 build libpng for Netware or Beos as instructed in projects\netware.txt
  59 or projects\beos.
  60
  61 Else enter the zlib directory and follow the instructions in zlib/README,
  62 then come back here and choose the appropriate makefile.sys in the scripts
  63 directory.
  64
  65 The files that are presently available in the scripts directory
  66 include
  67
  68  makefile.std      =>  Generic UNIX makefile (cc, creates static libpng.a)
  69  makefile.linux    =>  Linux/ELF makefile
  70                        (gcc, creates libpng12.so.0.1.2.7)
  71  makefile.gcmmx    =>  Linux/ELF makefile
  72                        (gcc, creates libpng12.so.0.1.2.7,
  73                        uses assembler code tuned for Intel MMX platform)
  74  makefile.gcc      =>  Generic makefile (gcc, creates static libpng.a)
  75  makefile.knr      =>  Archaic UNIX Makefile that converts files with
  76                        ansi2knr (Requires ansi2knr.c from
  77                        ftp://ftp.cs.wisc.edu/ghost)
  78  makefile.aix      =>  AIX/gcc makefile
  79  makefile.cygwin   =>  Cygwin/gcc makefile
  80  makefile.darwin   =>  Darwin makefile, can use on MacosX
  81  makefile.dec      =>  DEC Alpha UNIX makefile
  82  makefile.freebsd  =>  FreeBSD makefile
  83  makefile.hpgcc    =>  HPUX makefile using gcc
  84  makefile.hpux     =>  HPUX (10.20 and 11.00) makefile
  85  makefile.hp64     =>  HPUX (10.20 and 11.00) makefile, 64-bit
  86  makefile.ibmc     =>  IBM C/C++ version 3.x for Win32 and OS/2 (static)
  87  makefile.intel    =>  Intel C/C++ version 4.0 and later
  88  libpng.icc        =>  Project file for IBM VisualAge/C++ version 4.0 or later
  89  makefile.netbsd   =>  NetBSD/cc makefile, uses PNGGCCRD, makes libpng.so.
  90  makefile.ne12bsd  =>  NetBSD/cc makefile, uses PNGGCCRD,
  91                        makes libpng12.so
  92  makefile.openbsd  =>  OpenBSD makefile
  93  makefile.sgi      =>  Silicon Graphics IRIX makefile (cc, creates static lib)
  94  makefile.sggcc    =>  Silicon Graphics (gcc,
  95                        creates libpng12.so.0.1.2.7)
  96  makefile.sunos    =>  Sun makefile
  97  makefile.solaris  =>  Solaris 2.X makefile (gcc,
  98                        creates libpng12.so.0.1.2.7)
  99  makefile.so9      =>  Solaris 9 makefile (gcc,
 100                        creates libpng12.so.0.1.2.7)
 101  makefile.32sunu   =>  Sun Ultra 32-bit makefile
 102  makefile.64sunu   =>  Sun Ultra 64-bit makefile
 103  makefile.sco      =>  For SCO OSr5  ELF and Unixware 7 with Native cc
 104  makefile.mips     =>  MIPS makefile
 105  makefile.acorn    =>  Acorn makefile
 106  makefile.amiga    =>  Amiga makefile
 107  smakefile.ppc     =>  AMIGA smakefile for SAS C V6.58/7.00 PPC compiler
 108                        (Requires SCOPTIONS, copied from scripts/SCOPTIONS.ppc)
 109  makefile.atari    =>  Atari makefile
 110  makefile.beos     =>  BEOS makefile for X86
 111  makefile.bor      =>  Borland makefile (uses bcc)
 112  makefile.bc32     =>  32-bit Borland C++ (all modules compiled in C mode)
 113  makefile.tc3      =>  Turbo C 3.0 makefile
 114  makefile.dj2      =>  DJGPP 2 makefile
 115  makefile.msc      =>  Microsoft C makefile
 116  makefile.vcawin32 =>  makefile for Microsoft Visual C++ 5.0 and later (uses
 117                        assembler code tuned for Intel MMX platform)
 118  makefile.vcwin32  =>  makefile for Microsoft Visual C++ 4.0 and later (does
 119                        not use assembler code)
 120  makefile.os2      =>  OS/2 Makefile (gcc and emx, requires pngos2.def)
 121  pngos2.def        =>  OS/2 module definition file used by makefile.os2
 122  makefile.watcom   =>  Watcom 10a+ Makefile, 32-bit flat memory model
 123  makevms.com       =>  VMS build script
 124  descrip.mms       =>  VMS makefile for MMS or MMK
 125  SCOPTIONS.ppc     =>  Used with smakefile.ppc
 126
 127 Copy the file (or files) that you need from the
 128 scripts directory into this directory, for example
 129
 130    MSDOS example: copy scripts\makefile.msc makefile
 131    UNIX example:    cp scripts/makefile.std makefile
 132
 133 Read the makefile to see if you need to change any source or
 134 target directories to match your preferences.
 135
 136 Then read pngconf.h to see if you want to make any configuration
 137 changes.
 138
 139 Then just run "make" which will create the libpng library in
 140 this directory and "make test" which will run a quick test that reads
 141 the "pngtest.png" file and writes a "pngout.png" file that should be
 142 identical to it.  Look for "9782 zero samples" in the output of the
 143 test.  For more confidence, you can run another test by typing
 144 "pngtest pngnow.png" and looking for "289 zero samples" in the output.
 145 Also, you can run "pngtest -m contrib/pngsuite/*.png" and compare
 146 your output with the result shown in contrib/pngsuite/README.
 147
 148 Most of the makefiles will allow you to run "make install" to
 149 put the library in its final resting place (if you want to
 150 do that, run "make install" in the zlib directory first if necessary).
 151 Some also allow you to run "make test-installed" after you have
 152 run "make install".
 153
 154 If you encounter a compiler error message complaining about the
 155 lines
 156       __png.h__ already includes setjmp.h;
 157       __dont__ include it again.;
 158 This means you have compiled another module that includes setjmp.h,
 159 which is hazardous because the two modules might not include exactly
 160 the same setjmp.h.  If you are sure that you know what you are doing
 161 and that they are exactly the same, then you can comment out or
 162 delete the two lines.  Better yet, use the cexcept interface
 163 instead, as demonstrated in contrib/visupng of the libpng distribution.
 164
 165 Further information can be found in the README and libpng.txt
 166 files, in the individual makefiles, in png.h, and the manual pages
 167 libpng.3 and png.5.