Enable NETPBM and MPEG support

Packages describing “netpbm” as local USE flag

Package “netpbm” Flag Description
dev-perl/PDL Enable NETPBM and MPEG support
x11-wm/fvwm Enable NetPBM support (used by FvwmScript-ScreenDump)
app-office/texmacs Add support for media-libs/netpbm

All packages providing a “netpbm” USE flag (3)