[PATCH app-xfs 2/2] doc: use fop backend to convert xml to pdf

[Gaetan Nadon]

The default is passiveTex which does not work.
Add XMLFOP and HAVE_XMLFOP to skip pdf if fop is missing.

Signed-off-by: Gaetan Nadon <memsize at videotron.ca>
---
 Makefile.am  |    7 +++++--
 configure.ac |    9 +++++++++
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/Makefile.am b/Makefile.am
index fe4639c..41abd05 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -175,7 +175,10 @@ EXTRA_DIST += doc/xfs-design.xml doc/xfs-design.css doc/xfs-design.xsl
 
 if MAKE_DEVEL_DOCS
 if HAVE_XMLTO
-noinst_DATA = doc/xfs-design/index.html doc/xfs-design.pdf doc/xfs-design.txt
+noinst_DATA = doc/xfs-design/index.html doc/xfs-design.txt
+if HAVE_XMLFOP
+noinst_DATA += doc/xfs-design.pdf
+endif HAVE_XMLFOP
 CLEANFILES += $(noinst_DATA)
 
 doc/xfs-design/index.html: $(srcdir)/doc/xfs-design.xml $(srcdir)/doc/xfs-design.xsl doc/xfs-design/xfs-design.css
@@ -190,7 +193,7 @@ clean-local:
 	-rm -rf doc/xfs-design
 
 doc/xfs-design.pdf: $(srcdir)/doc/xfs-design.xml $(srcdir)/doc/xfs-design.xsl
-	$(AM_V_GEN)$(XMLTO) -m $(srcdir)/doc/xfs-design.xsl -o doc pdf $(srcdir)/doc/xfs-design.xml
+	$(AM_V_GEN)$(XMLTO) --with-fop -m $(srcdir)/doc/xfs-design.xsl -o doc pdf $(srcdir)/doc/xfs-design.xml
 
 doc/xfs-design.txt: $(srcdir)/doc/xfs-design.xml $(srcdir)/doc/xfs-design.xsl
 	$(AM_V_GEN)$(XMLTO) -m $(srcdir)/doc/xfs-design.xsl -o doc txt $(srcdir)/doc/xfs-design.xml
diff --git a/configure.ac b/configure.ac
index b429ed5..85bcac6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -95,6 +95,15 @@ AC_ARG_WITH(default-font-path, AS_HELP_STRING([--with-default-font-path=PATH], [
                                 [ FONTPATH="${DEFAULT_FONT_PATH}" ])
 AC_SUBST([FONTPATH])
 
+AC_PATH_PROG([XMLFOP], [fop])
+if test "x$XMLFOP" = "x"; then
+   AC_MSG_WARN([fop not found - pdf documentation targets will be skipped])
+   have_xmlfop=no
+else
+   have_xmlfop=yes
+fi
+AM_CONDITIONAL([HAVE_XMLFOP], [test "$have_xmlfop" = yes])
+
 # Option to enable support for building developer internals docs
 AC_ARG_ENABLE(devel-docs,
 	AS_HELP_STRING([--enable-devel-docs],
-- 
1.6.0.4

Revised series with pdf enabled