Bug#949985: Missing build dependency on libegl-dev

[Witold Baryluk <witold.baryluk@gmail.com>]

Package: blender
Version: 2.81.a+dfsg-5
Severity: normal

It looks like blender needs libegl-dev (containing a libEGL.so symlink to
libEGL.so.1 from libegl1 package), to build correctly.

The libegl-dev is suggested by some other packages, during build process,
but it is not explicitly installed.

This makes build fail during cmake stage, for example on alpha and
kfreebsd-i386 archs.

https://buildd.debian.org/status/fetch.php?pkg=cmake&arch=alpha&ver=3.15.4-1&stamp=1579830052&raw=0

Regards,
Witold