Fix the Makefile

.gitmodules

@@ -19,6 +19,9 @@
 [submodule "assess"]
 	path = lib/assess
 	url = git@github.com:phillord/assess.git
+[submodule "async"]
+	path = lib/async
+	url = git@github.com:jwiegley/emacs-async.git
 [submodule "auctex"]
 	path = lib/auctex
 	url = git@github.com:emacsmirror/auctex.git

Makefile

@@ -1,7 +1,7 @@
 -include lib/borg/borg.mk
 
 bootstrap-borg:
-    @git submodule--helper clone --name borg --path lib/borg \
-    --url git@github.com:emacscollective/borg.git
-    @cd lib/borg; git symbolic-ref HEAD refs/heads/master
-    @cd lib/borg; git reset --hard HEAD
+	@git submodule--helper clone --name borg --path lib/borg \
+	--url git@github.com:emacscollective/borg.git
+	@cd lib/borg; git symbolic-ref HEAD refs/heads/master
+	@cd lib/borg; git reset --hard HEAD

lib/async

@@ -0,0 +1 @@
+Subproject commit 324549ba1dcf610c3766c272f86bae9d2c49fc70