[GRASS-git] [OSGeo/grass] 50e773: configure: fix some autoconf-2.69 update issues (#...

[nilason]

  Branch: refs/heads/releasebranch_7_8
  Home:   https://github.com/OSGeo/grass
  Commit: 50e77367d6681e978d0f925ebf010a0d73051975
      https://github.com/OSGeo/grass/commit/50e77367d6681e978d0f925ebf010a0d73051975
  Author: nilason <n_larsson at yahoo.com>
  Date:   2021-09-16 (Thu, 16 Sep 2021)

  Changed paths:
    M aclocal.m4
    M configure
    A configure.ac
    R configure.in
    M lib/gis/compress.h

  Log Message:
  -----------
  configure: fix some autoconf-2.69 update issues (#1870)

- Rename configure.in (obsolete with autoconf-2.70) to configure.ac
- No need to set AC_CONFIG_AUX_DIR, default will do
- Remove double quote on macro 'LOC_FP_TEST'