-Installing libpng version 1.2.6 - August 15, 2004
+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-1.2.6" or "lpng109" and "zlib-1.1.3"
-or "zlib113") 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:
*.c
contrib
gregbook
- msvctest
pngminus
pngsuite
visupng
projects
beos
- borland
- msvc
+ c5builder (Borland)
+ visualc6 (msvc)
netware.txt
wince.txt
scripts
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\msvc directory
-and follow the instructions in msvc\README.txt.
+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 entering the downloading and installing
-the libpng\wince directory as instructed in the projects\wince.txt file, and
+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 as instructed in projects\netware.txt.
+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 choose the appropriate makefile.sys in the scripts
-directory.
+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
+ CMakeLists.txt => "cmake" script
makefile.std => Generic UNIX makefile (cc, creates static libpng.a)
- makefile.linux => Linux/ELF makefile (gcc, creates libpng12.so.0.1.2.6)
- makefile.gcmmx => Linux/ELF makefile (gcc, creates libpng12.so.0.1.2.6,
- uses assembler code tuned for Intel MMX platform)
+ 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
makefile.cygwin => Cygwin/gcc makefile
makefile.darwin => Darwin makefile, can use on MacosX
makefile.dec => DEC Alpha UNIX makefile
- makefile.hpgcc => FreeBSD 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.ne0bsd => NetBSD/cc makefile, uses PNGGCCRD, makes libpng0.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.0.1.2.6)
+ 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.0.1.2.6)
- makefile.so9 => Solaris 9 makefile (gcc, creates libpng12.so.0.1.2.6)
+ 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.beos => BEOS makefile for X86
makefile.bor => Borland makefile (uses bcc)
makefile.bc32 => 32-bit Borland C++ (all modules compiled in C mode)
- makefile.bd32 => To make a png32bd.dll with Borland C++ 4.5
makefile.tc3 => Turbo C 3.0 makefile
makefile.dj2 => DJGPP 2 makefile
makefile.msc => Microsoft C makefile
- makefile.vcawin32 => makefile for Microsoft Visual C++ 5.0 and later (uses
- assembler code tuned for Intel MMX platform)
- makefile.vcwin32 => makefile for Microsoft Visual C++ 4.0 and later (does
- not use assembler code)
+ 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
- pngdef.pas => Defines for a png32bd.dll with Borland C++ 4.5
SCOPTIONS.ppc => Used with smakefile.ppc
Copy the file (or files) that you need from the
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.
-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 *.png" in the "contrib/pngsuite" directory and compare
+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
projects / wxWidgets.git / blobdiff