From 85afef40d80da9d3457b741daba2b0bb178a6e7f Mon Sep 17 00:00:00 2001
From: Sandro Santilli <strk@keybit.net>
Date: Fri, 6 Jun 2014 16:13:47 +0200
Subject: [PATCH] Make git dependency support use as a submodule

---
 Makefile | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 5b47851..dd5f731 100644
--- a/Makefile
+++ b/Makefile
@@ -27,6 +27,7 @@ UPGRADES = \
      $(SED) 's/ /--$(EXTVERSION).sql $(EXTENSION)--/g')
 
 REV=$(shell git describe)
+GITDIR=$(shell test -d .git && echo '.git' || cat .git | $(SED) 's/^gitdir: //')
 
 DATA_built = \
   $(EXTENSION)--$(EXTVERSION).sql \
@@ -66,7 +67,7 @@ $(EXTENSION)--$(EXTVERSION)--$(EXTVERSION)next.sql: $(EXTENSION)--$(EXTVERSION).
 $(EXTENSION).control: $(EXTENSION).control.in Makefile
 	$(SED) -e 's/@@VERSION@@/$(EXTVERSION)/' $< > $@
 
-cartodb_version.sql: cartodb_version.sql.in Makefile .git/index
+cartodb_version.sql: cartodb_version.sql.in Makefile $(GITDIR)/index
 	$(SED) -e 's/@@VERSION@@/$(EXTVERSION) $(REV)/' $< > $@
 
 legacy_regress: $(REGRESS_OLD) Makefile