-surf/surfxml.l: $(top_srcdir)/src/surf/surfxml.dtd
- set -e; mkdir -p surf; cd surf; flexml -b 1000000 -P surfxml -S -L ../$(top_srcdir)/src/surf/surfxml.dtd
-$(top_srcdir)/include/surf/surfxml.h: $(top_srcdir)/src/surf/surfxml.dtd
- set -e;cd $(top_srcdir)/include/surf; flexml -P surfxml -H -L $(top_srcdir)/src/surf/surfxml.dtd
+surf/surfxml.l: $(srcdir)/surf/surfxml.dtd
+ set -e; mkdir -p surf; flexml -b 1000000 -P surfxml -S $@ -L $^
+$(top_srcdir)/include/surf/surfxml.h: $(srcdir)/surf/surfxml.dtd
+ set -e; flexml -P surfxml -H $@ -L $^