OK, # aptitude -t sid install qgis fixed it. That means there are dependency issues.
Reproduce with # cat /etc/apt/sources.list deb ... experimental ... deb ... unstable ... _______________________________________________ Pkg-grass-devel mailing list Pkg-grass-devel@alioth-lists.debian.net https://alioth-lists.debian.net/cgi-bin/mailman/listinfo/pkg-grass-devel