commit 0e3f47e4827a067b9b9795a3ae7297b51c9f0776
author Colin Cross <ccross@android.com> Fri Apr 25 14:28:54 2014 -0700
committer Colin Cross <ccross@android.com> Fri Apr 25 15:19:18 2014 -0700
tree 83a1c9a76d708c900155729d92687ac78b59984f
parent 9fdc8156ca8fb3449859bebf080a477fa3bcff5c

append2simg: write to temporary file

append2simg causes libsparse to write mmapped data from a file
back to that same file.  On btrfs, this sometimes causes a page
of zeroes to be written instead of the file data.  Work around
the issue by writing the output to a temporary file and then
renaming it over the original file.

Change-Id: Ia194b6ba0ddb8548747b63292b523756f544706a

libsparse/Android.mk

diff --git a/libsparse/Android.mk b/libsparse/Android.mk
index a21e090..4aba168 100644
--- a/libsparse/Android.mk
+++ b/libsparse/Android.mk
@@ -81,6 +81,8 @@
 include $(BUILD_EXECUTABLE)
 
 
+ifneq ($(HOST_OS),windows)
+
 include $(CLEAR_VARS)
 LOCAL_SRC_FILES := append2simg.c
 LOCAL_MODULE := append2simg
@@ -89,6 +91,7 @@
     libz
 include $(BUILD_HOST_EXECUTABLE)
 
+endif
 
 include $(CLEAR_VARS)
 LOCAL_MODULE := simg_dump.py