docs/Makefile: also install the HTML docs

HTML docs are installed in $(docdir)/html.

Signed-off-by: Jeff Squyres <[email protected]>

Author: jsquyres

docs/Makefile.am

@@ -889,4 +889,11 @@ man1_MANS += \
 man3_MANS += $(OSHMEM_MAN3_BUILT)
 endif
 
+install-data-hook:
+	$(MKDIR_P) $(DESTDIR)$(docdir)
+	cp -r $(srcdir)/_build/html $(DESTDIR)$(docdir)
+
+uninstall-hook:
+	rm -rf $(DESTDIR)$(docdir)/html
+
 endif OPAL_INSTALL_DOCS