Install dependencies on Gentoo

Install the GMT dependencies with:

# Install required dependencies
sci-libs/netcdf-4.8.1-r2:0/19::gentoo
net-misc/curl-7.87.0-r2::gentoo
sci-libs/gdal-3.5.3-r1:0/31::gentoo --autounmask-write > dispatch-conf (og trykk u) > kjør så igjen sci-libs/gdal-3.5.3-r1:0/31::gentoo

# Install optional dependencies
app-text/ghostscript-gpl

# to enable movie-making
media-gfx/graphicsmagick media-video/ffmpeg

# to enable document viewing via gmt docs
x11-misc/xdg-utils