Add pkg-config to the libpng usages as not all systems have the
symlink libpng.so -> libpng<version>.so (affected: NetBSD) that changes
with the version of the lib. If no-pkg-config is used, use -lpng as
before. Tested with FreeBSD 10.3, NetBSD 7.0.1 using png 1.6.21
Change-Id: I5c87f380c84da3d5c56c94da53adb900791c8caa
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
This is the beginning of revision history for this module. If you
want to look at revision history older than this, please refer to the
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If you have already performed the grafting and you don't see any
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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12
