View source for Libpng

{| style="text-align: left; background-color: AliceBlue;"
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!Download Source:
| http://downloads.sourceforge.net/libpng/libpng-{{Libpng-Version}}.tar.xz
|}

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{{Package-Introduction|libpng is a PNG reference library.|http://www.libpng.org/pub/png/libpng.html}}

== Non-Multilib ==

Compile the package:

 ./configure --prefix=/usr &&
 make

Install the package

 make install &&
 install -v -m755 -d /usr/share/doc/libpng-{{Libpng-Version}} &&
 install -v -m644 README libpng-{{Libpng-Version}}.txt /usr/share/doc/libpng-{{Libpng-Version}}

== Multilib ==

{{Note| Where a symlink points to a program or script which is now to be linked to the multiarch_wrapper, the symlinks must not loop.  In the case of libpng we point libpng-config-32 to libpng12-config-32 instead of to libpng-config because that would loop to the multiarch_wrapper.}}

=== 32Bit ===

Compile the package:

 CC="gcc ${BUILD32}" ./configure --prefix=/usr &&
 make

Install the package

 make install &&
 mv -v /usr/bin/libpng12-config{,-32} &&
 ln -sfv libpng12-config-32 /usr/bin/libpng-config-32
 ln -sfv multiarch_wrapper /usr/bin/libpng12-config &&
 ln -sfv multiarch_wrapper /usr/bin/libpng-config

=== N32 ===

Compile the package:

 CC="gcc ${BUILDN32}" ./configure --prefix=/usr --libdir=/usr/lib32 &&
 make

Install the package

 make install &&
 mv -v /usr/bin/libpng12-config{,-n32} &&
 ln -sfv libpng12-config-n32 /usr/bin/libpng-config-n32
 ln -sfv multiarch_wrapper /usr/bin/libpng12-config &&
 ln -sfv multiarch_wrapper /usr/bin/libpng-config

=== 64Bit ===

Compile the package:

 CC="gcc ${BUILD64}" ./configure --prefix=/usr --libdir=/usr/lib64 &&
 make

Install the package

 make install &&
 mv -v /usr/bin/libpng12-config{,-64} &&
 ln -sfv libpng12-config-64 /usr/bin/libpng-config-64 &&
 ln -sfv multiarch_wrapper /usr/bin/libpng-config &&
 ln -sfv multiarch_wrapper /usr/bin/libpng12-config &&
 install -v -m755 -d /usr/share/doc/libpng-{{Libpng-Version}} &&
 install -v -m644 README libpng-{{Libpng-Version}}.txt /usr/share/doc/libpng-{{Libpng-Version}}

= Contents =

{| style="text-align: left;"
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! Installed Programs:
| libpng-config and libpng12-config
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! Installed Libraries:
| libpng.so and libpng12.{so,a}
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! Installed Directories:
| /usr/include/libpng12 and /usr/share/doc/libpng-{{Libpng-Version}}
|}

=== Short Descriptions ===

{| style="text-align: left;"
|-valign="top"
! libpng-config
| is a symlink to '''libpng12-config'''.
|-valign="top"
! libpng12-config
| provides configuration information for libpng.
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! libpng.so and libpng12.{so,a}
| are a collection of routines used to create and manipulate PNG format graphics files. The PNG format was designed as a replacement for GIF and, to a lesser extent, TIFF, with many improvements and extensions and lack of patent problems.
|}

[[Category:Graphics Libraries]]