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PNG library

Version:

1.6.40

Release date:

Friday, 22 January, 1999

Home:

http://www.libpng.org/

License:

Freeware

Interface:

Italiano

PNG image compression library (libpng) for EMX and kLIBC/GCC environments. Port by different authors.

This software is distributed in two modes:

as compressed package that you have to download and manually install; if prerequisites are required, you will have to manually install them too;
as RPM package; you can install it using your favorite rpm package manager, that will take care to download and install both the software and its prerequisites.

Choose the installation mode that you prefer. Please note that not all the versions are available in both the installation modes.

Installation with rpm

This program is installable using the rpm package manager. See below for the install string. Required prerequisites are automatically processed by the package manager and, if needed, downloaded and installed.

libpng-1.6.40-1.oc00 (29/01/2024)

Repository: Netlabs stable

install with ANPM or running the command:
```
yum install libpng
```
manually download as ZIP file package:
http://rpm.netlabs.org/release/00/zip/libpng-1_6_40-1_oc00.zip

Readme/What's new

CHANGES - changes for libpng Version 1.6.40 [June 21, 2023] Fixed the eXIf chunk multiplicity checks. Fixed a memory leak in pCAL processing. Corrected the validity report about tRNS inside png_get_valid(). Fixed various build issues on *BSD, Mac and Windows. Updated the configurations and the scripts for continuous integration. Cleaned up the code, the build scripts, and the documentation.

libpng-devel-1.6.40-1.oc00 (29/01/2024)

Repository: Netlabs stable (note: development files, not needed by the end user)

install with ANPM or running the command:
```
yum install libpng-devel
```

libpng-debuginfo-1.6.40-1.oc00 (29/01/2024)

Repository: Netlabs stable

install with ANPM or running the command:
```
yum install libpng-debuginfo
```

libpng-tools-1.6.40-1.oc00 (29/01/2024)

Repository: Netlabs stable

install with ANPM or running the command:
```
yum install libpng-tools
```

libpng-static-1.6.40-1.oc00 (29/01/2024)

Repository: Netlabs stable

install with ANPM or running the command:
```
yum install libpng-static
```

Manual installation

Program is distributed as ZIP package: download to temporary directory and unpack to destination folder. See below for download link(s).

Following is a list of prerequisites that you have to manually install in order to have the program working:

You can install the prerequisites with rpm running the following string in a command line:

yum install emxrt libc

Following ones are the download links for manual installation:

PNG library v. 1.5.30 (29/3/2018, Mikulas Patocka)	Readme/What's new	Version 1.5.30 [September 28, 2017] Send comments/corrections/commendations to png-mng-implement at lists.sf.net (subscription required; visit https://lists.sourceforge.net/lists/listinfo/png-mng-implement to subscribe) or to glennrp at users.sourceforge.net
hobbes.nmsu.edu/download/pub/os2/dev/mm/libpng-1.5.30.zip
PNG library v. 1.6.28 (23/1/2017, KO Myung-Hun)
hobbes.nmsu.edu/download/pub/os2/dev/mm/libpng-1.6.28.zip
PNG library v. 1.5.27 (emx, 2/7/2016, Mikulas Patocka)
hobbes.nmsu.edu/download/pub/os2/dev/mm/libpng-1.5.27.zip
PNG library v. 1.6.18 (30/8/2015, KO Myung-Hun)
hobbes.nmsu.edu/download/pub/os2/dev/mm/libpng-1.6.18.zip
PNG library v. 1.2.31 (4/9/2008, KO Myung-Hun)
hobbes.nmsu.edu/download/pub/os2/dev/mm/libpng-1.2.31.zip