+ @if [ -d .hg ] ; then \
+ revh=`hg parents --template '#date|shortdate#_#node|short#' 2>/dev/null | sed -e s/-//g -e s/_/-/`;\
+ [ -z "$$revh" ] || echo '#define SERNO "'$$revh'"' >include/serno.h ; \
+ fi
+ @[ -f include/serno.h ] || echo '#define SERNO "unknown"' >include/serno.h