Don't set PKGDATADIR to an absolute path

For we are going to check in a prebuilt bison to the source tree,
it makes no sense to embed a full absolute path in the bison binary.
That means you can run the built bison only from the top of the source
tree.
To run it from somewhere else, you need to set up environmental variable
BISON_PKGDATADIR.

Bug: 8517572
Change-Id: Iaa81b30781a6a9162c775cdadaa759dad79a179d
diff --git a/Android.mk b/Android.mk
index d5e877a..dc83178 100644
--- a/Android.mk
+++ b/Android.mk
@@ -1,11 +1,19 @@
-# 
 # Copyright 2006 The Android Open Source Project
 #
-# Android Asset Packaging Tool
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
 #
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 
+LOCAL_PATH := $(call my-dir)
 
-LOCAL_PATH:= $(call my-dir)
 ###########################################
 include $(CLEAR_VARS)
 
@@ -131,7 +139,7 @@
     $(LOCAL_PATH)/$(BUILD_OS)-lib \
     $(LOCAL_PATH)/lib
 
-LOCAL_CFLAGS := -DPKGDATADIR=\"$(PWD)/$(LOCAL_PATH)/data\"
+LOCAL_CFLAGS := -DPKGDATADIR=\"$(LOCAL_PATH)/data\"
 
 LOCAL_STATIC_LIBRARIES := libbison
 
diff --git a/MODULE_LICENSE_GPL b/MODULE_LICENSE_GPL
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/MODULE_LICENSE_GPL