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copyright	4.64 KB	-rw-r--r--
libpng-1.2.54.txt.gz	41.38 KB	-rw-r--r--

Code Editor : README.Debian

libpng for Debian
-----------------

There have been changes in the way libpng is handled. Currently, there
are 2 versions of libpng in Debian at a time : libpng10 and libpng12,
formerly known as libpng2 and libpng3.

* The libpng10-0 and libpng12-0 packages contain the runtime for apps
  built with these new libraries.
* libpng2 and libpng3 contain compatibility symlinks to let apps built
  with older versions work correctly.
* libpng10-dev and libpng12-dev are the corresponding development
  packages. You should only use libpng10-dev to build packages using
  gdk-imlib1.
* libpng2-dev and libpng3-dev provide compatibility symlinks to build
  applications still build-depending on those.

A package linking with libpng should use as build-depends :
* libpng-dev for small packages not depending on other libraries which
  use or may use libpng.
* libpng10-dev for packages also linking with gdk-imlib1 or gnome 1.
* libpng12-dev for packages also linking with SDL, Gnome 2, Qt, or any
  other library using libpng12.

This version diverges from upstream in 3 ways :
1) the library is explicitly linked with -lm -lz
2) libpng.so.3 is just a compatibility symlink
3) symbols are versioned

-- Junichi Uekawa <dancer@debian.org>, Mon Oct 28 2002 12:27:54
 -- Josselin Mouette <joss@debian.org>, Tue Jun 10 2003 18:16:17 +0200

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Code Editor : README.Debian