Current configure.in contain the following construct to fetch in-system dmake version:

DMAKE_VERSION=`$DMAKE -V | $SED -n 's/.*Version \([[0-9.]]\+\).*/\1/p'`

The regexp is non-portable. The basic regular expressions has no + construct (althougth some implementation may add it). The standardized way to declare 1+ is \{1,\}

On the system where sed know no '+' extension the DMAKE version is not extracted and DMAKE is claimed to be too old. The buildin dmake is builded so the bug has no visible consequences.

Hope it help

                                                Dan

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