doc: Call xmllint for validity also in the fop build

This was somehow missed in commit
5d93ce2d0c619ba1b408eb749715e7223e23f6ae.

diff --git a/doc/src/sgml/Makefile b/doc/src/sgml/Makefile
index ac3a142bb26fef6fd0ceb436f980dd751127e738..24b895f3c397449dc6b94ee67357117090d120bc 100644 (file)
--- a/doc/src/sgml/Makefile
+++ b/doc/src/sgml/Makefile
@@ -271,9 +271,11 @@ htmlhelp: stylesheet-hh.xsl postgres.xml
    $(XSLTPROC) $(XSLTPROCFLAGS) $^
 
 %-A4.fo.tmp: stylesheet-fo.xsl %.xml
+   $(XMLLINT) --noout --valid $*.xml
    $(XSLTPROC) $(XSLTPROCFLAGS) --stringparam paper.type A4 -o $@ $^
 
 %-US.fo.tmp: stylesheet-fo.xsl %.xml
+   $(XMLLINT) --noout --valid $*.xml
    $(XSLTPROC) $(XSLTPROCFLAGS) --stringparam paper.type USletter -o $@ $^
 
 FOP = fop