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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: I5aad87b7d4c043f890f4ae2bc5d68cbad6d2c5c7
This commit is contained in:
Neels Hofmeyr 2016-10-01 00:34:48 +02:00
parent c6db4935be
commit 08d5c8cea9
1 changed files with 3 additions and 0 deletions
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3
configure.ac
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@ -2,6 +2,9 @@ AC_INIT([osmo-iuh],
m4_esyscmd([./git-version-gen .tarball-version]),
[openbsc@lists.osmocom.org])
dnl *This* is the root dir, even if an install-sh exists in ../ or ../../
AC_CONFIG_AUX_DIR([.])
LT_INIT
AM_INIT_AUTOMAKE([foreign dist-bzip2 no-dist-gzip 1.9 tar-ustar])