[GRASS-git] [OSGeo/grass] 59d1c4: r.buildvrt: check if all input maps are NULL-only ...

[Markus Neteler]

  Branch: refs/heads/releasebranch_8_0
  Home:   https://github.com/OSGeo/grass
  Commit: 59d1c44cb2c0c2aa8ede10d19532a5d724a771ec
      https://github.com/OSGeo/grass/commit/59d1c44cb2c0c2aa8ede10d19532a5d724a771ec
  Author: Markus Neteler <neteler at gmail.com>
  Date:   2022-03-24 (Thu, 24 Mar 2022)

  Changed paths:
    M raster/r.buildvrt/main.c

  Log Message:
  -----------
  r.buildvrt: check if all input maps are NULL-only (#2220)

Do not continue if all input raster maps only contain no-data.

Fixes 2217