-Installing libpng version 1.0.1 March 15, 1998
+Installing libpng version 1.2.20 - September 8, 2007
-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
-zlib, but you will still need to have access to the
-zlib.h and zconf.h include files that correspond to the
-version of zlib that's installed.
+On Unix/Linux and similar systems, you can simply type
+
+ ./configure [--prefix=/path]
+ make check
+ make install
+
+and ignore the rest of this document.
+
+If configure does not work on your system and you have a reasonably
+up-to-date set of tools, running ./autogen.sh before running ./configure
+may fix the problem. You can also run the individual commands in
+autogen.sh with the --force option, if supported by your version of
+the tools. If you run 'libtoolize --force', though, this will replace
+the distributed, patched, version of ltmain.sh with an unpatched version
+and your shared library builds may fail to produce libraries with the
+correct version numbers.
+
+Instead, you can use one of the custom-built makefiles in the
+"scripts" directory
+
+ cp scripts/makefile.system makefile
+ make test
+ make install
+
+Or you can use one of the "projects" in the "projects" directory.
+
+If you want to use "cmake" (see www.cmake.org), copy CMakeLists.txt
+from the "scripts" directory to this directory and type
+
+ cmake . [-DPNG_MMX=YES] -DCMAKE_INSTALL_PREFIX=/path
+ make
+ make install
+
+Before installing libpng, you must first install zlib, if it
+is not already on your system. zlib can usually be found
+wherever you got libpng. zlib can be placed in another directory,
+at the same level as libpng.
+
+If your system already has a preinstalled zlib you will still need
+to have access to the 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
-might be called "libpng-1.0.1 or "lpng100" and "zlib-1.1.1"
-or "zlib111") so that you have directories called "zlib" and "libpng".
+might be called "libpng-1.2.20" or "lpng109" and "zlib-1.2.1"
+or "zlib121") so that you have directories called "zlib" and "libpng".
Your directory structure should look like this:
README
*.h
*.c
+ contrib
+ gregbook
+ pngminus
+ pngsuite
+ visupng
+ projects
+ beos
+ c5builder (Borland)
+ visualc6 (msvc)
+ netware.txt
+ wince.txt
scripts
makefile.*
pngtest.png
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.
+If the line endings in the files look funny, you may wish to get the other
+distribution of libpng. It is available in both tar.gz (UNIX style line
+endings) and zip (DOS style line endings) formats.
+
+If you are building libpng with MSVC, you can enter the
+libpng projects\visualc6 directory and follow the instructions in
+projects\visualc6\README.txt.
+
+You can build libpng for WindowsCE by downloading and installing
+the projects\wince directory as instructed in the projects\wince.txt file, and
+then following the instructions in the README* files. Similarly, you can
+build libpng for Netware or Beos as instructed in projects\netware.txt
+or projects\beos.
+
+Else enter the zlib directory and follow the instructions in zlib/README,
+then come back here and run "configure" or choose the appropriate
+makefile.sys in the scripts directory.
+
The files that are presently available in the scripts directory
include
- descrip.mms => VMS makefile for MMS or MMK
- makefile.std => Generic UNIX makefile
- makefile.knr => Archaic UNIX Makefile that converts files with ansi2knr
- makefile.dec => DEC Alpha UNIX makefile
- makefile.sgi => Silicon Graphics IRIX makefile
- makefile.sun => Sun makefile
- makefile.s2x => Solaris 2.X makefile (gcc, creates libpng.so.2.1.0)
- makefile.lnx => Linux/ELF makefile (gcc, creates libpng.so.2.1.0)
- makefile.mip => MIPS makefile
- makefile.aco => Acorn makefile
- makefile.ama => Amiga makefile
- smakefile.ppc => AMIGA smakefile for SAS C V6.58/7.00 PPC compiler
- (Requires SCOPTIONS, copied from scripts/SCOPTIONS.ppc)
- makefile.atr => Atari makefile
- makefile.bor => Borland makefile
- build.bat => MS-DOS batch file for Borland compiler
- makefile.dj2 => DJGPP 2 makefile
- makefile.msc => Microsoft C makefile
- makefile.tc3 => 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.wat => Watcom 10a+ Makefile, 32-bit flat memory model
- makevms.com => VMS build script
+ CMakeLists.txt => "cmake" script
+ makefile.std => Generic UNIX makefile (cc, creates static libpng.a)
+ makefile.elf => Linux/ELF makefile symbol versioning,
+ gcc, creates libpng12.so.0.1.2.20)
+ makefile.linux => Linux/ELF makefile
+ (gcc, creates libpng12.so.0.1.2.20)
+ makefile.gcc => Generic makefile (gcc, creates static libpng.a)
+ makefile.knr => Archaic UNIX Makefile that converts files with
+ ansi2knr (Requires ansi2knr.c from
+ ftp://ftp.cs.wisc.edu/ghost)
+ makefile.aix => AIX/gcc makefile
+ makefile.cygwin => Cygwin/gcc makefile
+ makefile.darwin => Darwin makefile, can use on MacosX
+ makefile.dec => DEC Alpha UNIX makefile
+ makefile.freebsd => FreeBSD makefile
+ makefile.hpgcc => HPUX makefile using gcc
+ makefile.hpux => HPUX (10.20 and 11.00) makefile
+ makefile.hp64 => HPUX (10.20 and 11.00) makefile, 64-bit
+ makefile.ibmc => IBM C/C++ version 3.x for Win32 and OS/2 (static)
+ makefile.intel => Intel C/C++ version 4.0 and later
+ libpng.icc => Project file for IBM VisualAge/C++ version 4.0 or later
+ makefile.netbsd => NetBSD/cc makefile, uses PNGGCCRD, makes libpng.so.
+ makefile.ne12bsd => NetBSD/cc makefile, uses PNGGCCRD,
+ makes libpng12.so
+ makefile.openbsd => OpenBSD makefile
+ makefile.sgi => Silicon Graphics IRIX makefile (cc, creates static lib)
+ makefile.sggcc => Silicon Graphics (gcc,
+ creates libpng12.so.0.1.2.20)
+ makefile.sunos => Sun makefile
+ makefile.solaris => Solaris 2.X makefile (gcc,
+ creates libpng12.so.0.1.2.20)
+ makefile.solaris-x86 => Solaris/intelMMX 2.X makefile (gcc,
+ creates libpng12.so.0.1.2.20)
+ makefile.so9 => Solaris 9 makefile (gcc,
+ creates libpng12.so.0.1.2.20)
+ makefile.32sunu => Sun Ultra 32-bit makefile
+ makefile.64sunu => Sun Ultra 64-bit makefile
+ 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.bor => Borland makefile (uses bcc)
+ makefile.bc32 => 32-bit Borland C++ (all modules compiled in C mode)
+ makefile.tc3 => Turbo C 3.0 makefile
+ makefile.dj2 => DJGPP 2 makefile
+ makefile.msc => Microsoft C makefile
+ makefile.vcwin32 => makefile for Microsoft Visual C++ 4.0 and later
+ 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
+ descrip.mms => VMS makefile for MMS or MMK
+ SCOPTIONS.ppc => Used with smakefile.ppc
Copy the file (or files) that you need from the
scripts directory into this directory, for example
- MSDOS example: copy scripts\makefile.msd makefile
+ MSDOS example: copy scripts\makefile.msc makefile
UNIX example: cp scripts/makefile.std makefile
Read the makefile to see if you need to change any source or
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.
+Then just run "make" which will create the libpng library in
+this directory and "make test" which will run a quick test that reads
+the "pngtest.png" file and writes a "pngout.png" file that should be
+identical to it. Look for "9782 zero samples" in the output of the
+test. For more confidence, you can run another test by typing
+"pngtest pngnow.png" and looking for "289 zero samples" in the output.
+Also, you can run "pngtest -m contrib/pngsuite/*.png" and compare
+your output with the result shown in contrib/pngsuite/README.
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).
+Some also allow you to run "make test-installed" after you have
+run "make install".
+
+If you encounter a compiler error message complaining about the
+lines
+ __png.h__ already includes setjmp.h;
+ __dont__ include it again.;
+This means you have compiled another module that includes setjmp.h,
+which is hazardous because the two modules might not include exactly
+the same setjmp.h. If you are sure that you know what you are doing
+and that they are exactly the same, then you can comment out or
+delete the two lines. Better yet, use the cexcept interface
+instead, as demonstrated in contrib/visupng of the libpng distribution.
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.
+files, in the individual makefiles, in png.h, and the manual pages
+libpng.3 and png.5.
projects / wxWidgets.git / blobdiff