-cgi-demo.cgi: cgi-demo.cgi.in $(top_builddir)/config.status
- sed 's,@''exec_prefix@,$(exec_prefix),' cgi-demo.cgi.in > $@
+cgi-demo.cgi: @srcdir@/cgi-demo.cgi.in $(top_builddir)/config.status
+ sed 's,@''exec_prefix@,$(exec_prefix),' @srcdir@/cgi-demo.cgi.in > $@