docs: Fix docs install when graphvix is not installed.

Signed-off-by: Keir Fraser <keir@xensource.com>

diff --git a/docs/xen-api/Makefile b/docs/xen-api/Makefile
index dee807c65c02d1a464ba81578e04ffef7b94aa75..41a9264c6ff0a24a8f8ebf7e6256e473227e2c11 100644 (file)
--- a/docs/xen-api/Makefile
+++ b/docs/xen-api/Makefile
@@ -19,9 +19,8 @@ install:
        $(INSTALL_DIR) $(DESTDIR)$(pkgdocdir)/ps
        $(INSTALL_DIR) $(DESTDIR)$(pkgdocdir)/pdf
 
-       cp xenapi.ps $(DESTDIR)$(pkgdocdir)/ps
-       cp xenapi.pdf $(DESTDIR)$(pkgdocdir)/pdf
-
+       [ -e xenapi.ps ] && cp xenapi.ps $(DESTDIR)$(pkgdocdir)/ps || true
+       [ -e xenapi.pdf ] && cp xenapi.pdf $(DESTDIR)$(pkgdocdir)/pdf || true
 
 xenapi.dvi: $(TEX) $(EPS) $(EPSDOT)
        $(LATEX) xenapi.tex