(setq org-export-docbook-xslt-proc-command "xsltproc --output %o %s %i"
org-export-docbook-xsl-fo-proc-command "fop %i.safe %o"
org-export-docbook-xslt-stylesheet
(setq org-export-docbook-xslt-proc-command "xsltproc --output %o %s %i"
org-export-docbook-xsl-fo-proc-command "fop %i.safe %o"
org-export-docbook-xslt-stylesheet