[tex-live] TeX Live 2011 build fails because of LuaTeX/libpng incompatibility

Jindrich Novy jnovy at redhat.com
Wed May 11 19:34:50 CEST 2011

Hi all,

LuaTeX build stops with the following error after its update in the
TeX Live tree:

../../../texk/web2c/luatexdir/image/writepng.w:585:19: error:
'PNG_FP_1' undeclared (first use in this function)

for a couple of days now with libpng older than 1.5.2. I found related
note to this problem here:


The thing is that many distributions such as Fedora do not consider
newer libpng releases stable due to its outstanding issues:


and actually still ships stable libpng-1.2.44.

Do you think I should communicate with LuaTeX upstream to address
this? In any case I wanted to make you aware of it because of the
upcoming TL2011 release.


Jindrich Novy <jnovy at redhat.com>   http://people.redhat.com/jnovy/
Kdo víno má a nepije, kdo hrozny má a nejí je, kdo ženu má a nelíbá,
kdo zábavě se vyhýbá, na toho vemte bič a hůl, to není člověk, to je vůl.
--- Jan Werich

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