When the configuration cache has been filled with a value for
ac_cv_host, host-lzo fails to detect the target system name. This is
due to misbehaving code in the ./configure script. Therefore, we need
to autoreconf the package, which in turn requires :
* a little fix to the configure.ac file
* a little fix to src/Makefile.am
* an extraction of important parts of aclocal.m4 into acinclude.m4
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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