Description of problem: 

Emacs' "org-export-as-docbook-pdf" command gives an error, "XSLT processor command is not set correctly". Fedora includes all the necessary packages but does not integrate them.


Version-Release number of selected component (if applicable):

$ rpm -q docbook-style-xsl emacs fop libxslt
docbook-style-xsl-1.78.1-2.fc20.noarch
emacs-24.3-13.fc20.x86_64
fop-1.1-5.fc20.noarch
libxslt-1.1.28-5.fc20.x86_64


How reproducible:

Consistently


Steps to Reproduce:

0.Install packages: docbook-style-xsl fop libxslt

1.emacs a.org (I suppose any org file would equally demonstrate the problem)

2.M-x org-export-as-docbook-pdf


Actual results:

1.Error message: "XSLT processor command is not set correctly" 


Expected results:

1.Happy messages, including 
 * Processing DocBook file...done
 * Exporting to PDF...done
2.Appearance of a.pdf on the disk.


Additional info:

Fedora packages apparently may enrich Emacs' configuration in /usr/share/emacs/site-lisp/.  Such configuration seems to be missing to put Emacs in touch with the Fedora packages it needs.  Something like this...

 (setq org-export-docbook-xsl-fo-proc-command "/usr/bin/fop \"%i\" \"%o\"")

 (setq org-export-docbook-xslt-proc-command "/usr/bin/xsltproc --nonet -o \"%o\" \"%s\" \"%i\"")

 (setq org-export-docbook-xslt-stylesheet "/usr/share/sgml/docbook/xsl-stylesheets/fo/docbook.xsl")