[california] Prevent gnome-autogen.sh from overwriting custom INSTALL file

[Jim Nelson <jnelson src gnome org>]

commit b866c6e9ccced646aedda265a1447bd0941d9f94
Author: Jim Nelson <jim yorba org>
Date:   Tue May 6 14:56:01 2014 -0700

    Prevent gnome-autogen.sh from overwriting custom INSTALL file

 autogen.sh |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)
---
diff --git a/autogen.sh b/autogen.sh
index 7b4be1d..32a3bb2 100755
--- a/autogen.sh
+++ b/autogen.sh
@@ -14,4 +14,10 @@ which gnome-autogen.sh || {
 mkdir -p config
 mkdir -p m4
 
+cp -pf INSTALL INSTALL.bak
+
 . gnome-autogen.sh
+
+cp -pf INSTALL.bak INSTALL
+rm INSTALL.bak
+