tree 7852e14251faa084e8909a288aa1ac30d47fbc77
parent ea291e3004182257399a53f95b236e57d1adf989
author Neels Hofmeyr <nhofmeyr@sysmocom.de> 1475274871 +0200
committer Neels Hofmeyr <nhofmeyr@sysmocom.de> 1475276513 +0200

build: be robust against install-sh files above the root dir

Explicitly set AC_CONFIG_AUX_DIR.

To reproduce the error avoided by this patch:

  rm install-sh        # in case it was already generated.
  touch ../install-sh  # yes, outside this source tree
  autoreconf -fi

This will produce an error like

  ...
  configure.ac:16: error: required file '../ltmain.sh' not found
  configure.ac:5: installing '../missing'
  src/Makefile.am: installing '../depcomp'
  autoreconf: automake failed with exit status: 1

See also automake (vim `which automake`) and look for 'sub locate_aux_dir'.

Change-Id: I3b6d9ad4e5af44c2bdf3844c7bf8e8517bd61d8e