[GRASS5] configure and --with-gdal

[Markus Neteler]

Hi,

just found a small inconsistency within 'configure':

configure --help | grep gdal
  --with-gdal[=path]      build directly against GDAL (path is gdal-config)
               ^^^^

want's a path.

But it only works when specifying:
configure --with-gdal=/usr/local/bin/gdal-config
                                     ^^^^^^^^^^^

This is a file. Maybe we should modify 'configure[.in]' to
be happy just with
configure --with-gdal=/usr/local/bin

for consistency reasons (the other parameters are also pointing to paths).

Markus