Make building docs outside of the source directory work?

svn path=/trunk/vorbis/; revision=5323

diff --git a/doc/Makefile.am b/doc/Makefile.am
index 5695226..52d1800 100644 (file)
--- a/doc/Makefile.am
+++ b/doc/Makefile.am
@@ -80,10 +80,10 @@ CLEANFILES = Vorbis_I_spec.fo spec.aux spec.log spec.out
 
 # explicit rules for generating docs
 Vorbis_I_spec.html:
-       xsltproc --xinclude --output $@ xml/spec-html.xsl xml/Vorbis_I_spec.xml
+       xsltproc --xinclude --output $@ $(srcdir)/xml/spec-html.xsl $(srcdir)/xml/Vorbis_I_spec.xml
 
 Vorbis_I_spec.fo:
-       xsltproc --xinclude --output $@ xml/spec-fo.xsl xml/Vorbis_I_spec.xml
+       xsltproc --xinclude --output $@ $(srcdir)/xml/spec-fo.xsl $(srcdir)/xml/Vorbis_I_spec.xml
 
 Vorbis_I_spec.pdf: Vorbis_I_spec.fo
        cp $< spec.fo # work around a passivetex bug