re-addding define that got (accidentally?) removed by changeset bfbf2f2bfbf8 http://dev.monetdb.org/hg/MonetDB/rev/bfbf2f2bfbf8
re-addding define that got (accidentally?) removed by changeset bfbf2f2bfbf8
http://dev.monetdb.org/hg/MonetDB/rev/bfbf2f2bfbf8

without this define, compilation fails with

MonetDB5/src/optimizer/optimizerWrapper.mx: In function ?OPTmapreduce?:
MonetDB5/src/optimizer/optimizerWrapper.mx:49: error: ?OPTDEBUGmapreduce? undeclared (first use in this function)

zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb,zyzyis/monetdb