Fix the doc build when installing from the tarball

https://bugzilla.gnome.org/show_bug.cgi?id=688409

diff --git a/doc/reference/doc-build.am b/doc/reference/doc-build.am
index 6074a76..66f6317 100644 (file)
--- a/doc/reference/doc-build.am
+++ b/doc/reference/doc-build.am
@@ -55,8 +55,6 @@ clean-local:
        rm -f gtkdoc/lib$(RYGEL_DOCBUILD_MODULE)*.txt
        rm -f gtkdoc/lib$(RYGEL_DOCBUILD_MODULE).prerequisites
 
-RYGEL_GTKDOC_INSTALL_DIR = $(DESTDIR)$(datadir)/gtk-doc/html/lib$(RYGEL_DOCBUILD_MODULE)
-
 uninstall-hook:
        rm -rf $(INSTALL_DIR)
 
@@ -64,6 +62,8 @@ all: valadoc-gen gtkdoc-gen
 
 endif
 
+RYGEL_GTKDOC_INSTALL_DIR = $(DESTDIR)$(datadir)/gtk-doc/html/lib$(RYGEL_DOCBUILD_MODULE)
+
 # The chmod corrects the directory permissions so that distcheck can remove the installed files.
 install-data-hook: gtkdoc/html/index.html
        $(MKDIR_P) $(RYGEL_GTKDOC_INSTALL_DIR)