K 10
svn:author
V 7
mandree
K 8
svn:date
V 27
2017-06-02T20:52:46.169949Z
K 7
svn:log
V 546
Add libpng to LIB_DEPENDS, fixing poudriere builds.

This fixes the following poudriere build failure in the configure stage
(in a fully patched amd64-based 10.3-RELEASE jail):

[...]
checking for jpeglib.h... yes
checking png.h usability... no
checking png.h presence... no
checking for png.h... no
configure: error: libpng-devel header files are required to compile Enblend.
===>  Script "configure" failed unexpectedly.

PR:		219569
Reported by:	Stefan Ehmann (with different patch)
Approved by:	portmgr (blanket for trivial and tested fixes)

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