[GRASS-git] [OSGeo/grass] cf1720: r.external speed-up (#1305)

[Markus Metz]

  Branch: refs/heads/releasebranch_7_8
  Home:   https://github.com/OSGeo/grass
  Commit: cf1720174196715f01d0fd2bac16d8265a4ee821
      https://github.com/OSGeo/grass/commit/cf1720174196715f01d0fd2bac16d8265a4ee821
  Author: Markus Metz <33666869+metzm at users.noreply.github.com>
  Date:   2021-02-18 (Thu, 18 Feb 2021)

  Changed paths:
    M lib/raster/range.c
    M raster/r.external/link.c
    M raster/r.external/main.c
    M raster/r.external/proto.h
    M raster/r.info/main.c
    M raster/r.support/check.c
    M raster/r.support/histo.c

  Log Message:
  -----------
  r.external speed-up (#1305)

 * faster linking with r.external
 * super-fast mode for r.external
 * warning for fast mode
 * update r.info if range is missing
 * fix r.support to re-compute range for fp maps

Co-authored-by: Markus Neteler <neteler at gmail.com>