diff --git a/core/main.mk b/core/main.mk
index 67b9183..423e303 100644
--- a/core/main.mk
+++ b/core/main.mk
@@ -35,7 +35,7 @@
 $(warning ********************************************************************************)
 $(warning *  You are using version $(MAKE_VERSION) of make.)
 $(warning *  You must upgrade to version 3.81 or greater.)
-$(warning *  see file://$(shell pwd)/docs/development-environment/machine-setup.html)
+$(warning *  see http://source.android.com/download)
 $(warning ********************************************************************************)
 $(error stopping)
 endif
diff --git a/target/board/generic_x86/AndroidBoard.mk b/target/board/generic_x86/AndroidBoard.mk
new file mode 100644
index 0000000..9d64d52
--- /dev/null
+++ b/target/board/generic_x86/AndroidBoard.mk
@@ -0,0 +1,8 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := init.rc
+LOCAL_SRC_FILES := init.rc
+LOCAL_MODULE_CLASS := SHARED_LIBRARIES
+LOCAL_MODULE_PATH := $(TARGET_ROOT_OUT)
+include $(BUILD_PREBUILT)
diff --git a/target/board/generic_x86/BoardConfig.mk b/target/board/generic_x86/BoardConfig.mk
new file mode 100644
index 0000000..cdc48f3
--- /dev/null
+++ b/target/board/generic_x86/BoardConfig.mk
@@ -0,0 +1,20 @@
+TARGET_COMPRESS_MODULE_SYMBOLS := false
+TARGET_PRELINK_MODULE := false
+TARGET_NO_RECOVERY := true
+TARGET_HARDWARE_3D := false
+BOARD_USES_GENERIC_AUDIO := true
+USE_CAMERA_STUB := true
+TARGET_PROVIDES_INIT_RC := true
+USE_CUSTOM_RUNTIME_HEAP_MAX := "32M"
+TARGET_CPU_ABI := x86
+TARGET_USERIMAGES_USE_EXT2 := true
+TARGET_BOOTIMAGE_USE_EXT2 := true
+TARGET_USE_DISKINSTALLER := false
+
+# For KVM
+# BOARD_KERNEL_CMDLINE := console=tty0 console=ttyS1,115200n8 console=tty0 androidboot.hardware=generic_x86 vga=788
+
+# For mrst_ref
+BOARD_KERNEL_CMDLINE := init=/init pci=noearly console=ttyS0 console=ttyS1,115200n8 console=tty0 earlyprintk=mrst loglevel=8 notsc no_percpu_apbt androidboot.hardware=generic_x86 s0ix_latency=160
+
+BOARD_BOOTIMAGE_MAX_SIZE := 8388608
diff --git a/target/board/generic_x86/README.txt b/target/board/generic_x86/README.txt
new file mode 100644
index 0000000..3b88b44
--- /dev/null
+++ b/target/board/generic_x86/README.txt
@@ -0,0 +1,26 @@
+The generic_x86 board target provides basic services on
+very basic hardware. To build with generic_x86, you will
+need an appropriate kernel for your device (or emulation).
+
+A1. Create a new top level directory and pull the AOSP repository
+        mkdir $HOME/AOSP
+        cd $HOME/AOSP
+        repo init -u git://android.git.kernel.org/platform/manifest.git
+        repo sync
+
+A2. Copy in the buildspeck.mk
+        cd $HOME/AOSP
+        cp build/target/board/generic_x86/buildspec-generic_x86.mk buildspec.mk
+
+A3. Copy in the kernel
+        cd $HOME/AOSP
+        cp ~/bzImage.your_device $HOME/AOSP/prebuilt/android-x86/kernel/kernel
+
+A4. Build
+        cd $HOME/AOSP
+        source build/envsetup.sh
+        lunch generic_x86-eng
+        make -j8
+
+The build will generate some image files whose format may or may not be correct for your
+device.
diff --git a/target/board/generic_x86/buildspec-generic_x86.mk b/target/board/generic_x86/buildspec-generic_x86.mk
new file mode 100644
index 0000000..5c4e6a5
--- /dev/null
+++ b/target/board/generic_x86/buildspec-generic_x86.mk
@@ -0,0 +1,3 @@
+BUILD_ENV_SEQUENCE_NUMBER := 9
+DISABLE_DEXPREOPT := true
+TARGET_ARCH := x86
diff --git a/target/board/generic_x86/init.rc b/target/board/generic_x86/init.rc
new file mode 100644
index 0000000..2a6f665
--- /dev/null
+++ b/target/board/generic_x86/init.rc
@@ -0,0 +1,243 @@
+
+on init
+
+sysclktz 0
+
+loglevel 3
+
+# setup the global environment
+    export PATH /sbin:/system/sbin:/system/bin:/system/xbin
+    export LD_LIBRARY_PATH /system/lib
+    export ANDROID_BOOTLOGO 1
+    export ANDROID_ROOT /system
+    export ANDROID_ASSETS /system/app
+    export ANDROID_DATA /data
+    export EXTERNAL_STORAGE /sdcard
+    export BOOTCLASSPATH /system/framework/core.jar:/system/framework/ext.jar:/system/framework/framework.jar:/system/framework/android.policy.jar:/system/framework/services.jar
+
+# Backward compatibility
+    symlink /system/etc /etc
+
+# create mountpoints and mount tmpfs on sqlite_stmt_journals and debugfs on d
+    mkdir /d
+    mkdir /sdcard 0000 system system
+    mkdir /system
+    mkdir /data 0771 system system
+    mkdir /cache 0770 system cache
+    mkdir /sqlite_stmt_journals 01777 root root
+    mount tmpfs tmpfs /sqlite_stmt_journals
+    mount debugfs debugfs /d
+
+    mount rootfs rootfs / rw remount
+
+    write /proc/sys/kernel/panic_on_oops 1
+    write /proc/sys/kernel/hung_task_timeout_secs 0
+    write /proc/cpu/alignment 4
+    write /proc/sys/kernel/sched_latency_ns 10000000
+    write /proc/sys/kernel/sched_wakeup_granularity_ns 2000000
+
+# mount mtd partitions
+    # Hack...
+    #   We'll attempt to mount both as sdcard and harddisk...
+    #   Only one or the other will actually work... this way, we can
+    #   use the same init.rc for both
+    mount ext3 /dev/block/mmcblk0p6 /system
+    mount ext3 /dev/block/mmcblk0p6 /system rw remount
+    mount ext3 /dev/block/mmcblk0p2 /data nosuid nodev
+    mount ext3 /dev/block/mmcblk0p7 /cache nosuid nodev
+    mount ext3 /dev/block/sda6 /system
+    mount ext3 /dev/block/sda6 /system rw remount
+    mount ext3 /dev/block/sda8 /data
+
+    # We chown/chmod /data again so because mount is run as root + defaults
+    chown system system /data
+    chmod 0771 /data
+
+    # Same reason as /data above
+    chown system cache /cache
+    chmod 0770 /cache
+
+    # This may have been created by the recovery system with odd permissions
+    chown system system /cache/recovery
+    chmod 0770 /cache/recovery
+
+# create basic filesystem structure
+    mkdir /data/misc 01771 system misc
+    mkdir /data/misc/hcid 0770 bluetooth bluetooth
+    mkdir /data/local 0771 shell shell
+    mkdir /data/local/tmp 0771 shell shell
+    mkdir /data/data 0771 system system
+    mkdir /data/app-private 0771 system system
+    mkdir /data/app 0771 system system
+    mkdir /data/property 0700 root root
+
+    # create dalvik-cache and double-check the perms
+    mkdir /data/dalvik-cache 0771 system system
+    chown system system /data/dalvik-cache
+    chmod 0771 /data/dalvik-cache
+
+    # create the lost+found directories, so as to enforce our permissions
+    mkdir /system/lost+found 0770
+    mkdir /data/lost+found 0770
+    mkdir /cache/lost+found 0770
+
+    # double check the perms, in case lost+found already exists, and set owner
+    chown root root /data/lost+found
+    chmod 0770 /data/lost+found
+    chown root root /cache/lost+found
+    chmod 0770 /cache/lost+found
+
+on boot
+
+### Load some modules
+
+# basic network init
+    ifup lo
+    hostname localhost
+    domainname localdomain
+
+
+# set RLIMIT_NICE to allow priorities from 19 to -20
+    setrlimit 13 40 40
+    mkdir /data/core 0777
+    write /proc/sys/kernel/core_pattern /data/core/%e.%p
+    setrlimit 4 -1 -1
+
+# Define the oom_adj values for the classes of processes that can be
+# killed by the kernel.  These are used in ActivityManagerService.
+    setprop ro.FOREGROUND_APP_ADJ 0
+    setprop ro.VISIBLE_APP_ADJ 1
+    setprop ro.SECONDARY_SERVER_ADJ 2
+    setprop ro.HIDDEN_APP_MIN_ADJ 7
+    setprop ro.CONTENT_PROVIDER_ADJ 14
+    setprop ro.EMPTY_APP_ADJ 15
+    setprop ro.BACKUP_APP_ADJ 2
+    setprop ro.HOME_APP_ADJ 4
+
+
+# Define the memory thresholds at which the above process classes will
+# be killed.  These numbers are in pages (4k).
+    setprop ro.FOREGROUND_APP_MEM 1536
+    setprop ro.VISIBLE_APP_MEM 2048
+    setprop ro.SECONDARY_SERVER_MEM 4096
+    setprop ro.BACKUP_APP_MEM 4096
+    setprop ro.HOME_APP_MEM 4096
+    setprop ro.HIDDEN_APP_MEM 5120
+    setprop ro.CONTENT_PROVIDER_MEM 5632
+    setprop ro.EMPTY_APP_MEM 6144
+
+
+# Write value must be consistent with the above properties.
+    write /sys/module/lowmemorykiller/parameters/adj 0,1,2,7,14,15
+
+    write /proc/sys/vm/overcommit_memory 1
+    write /sys/module/lowmemorykiller/parameters/minfree 1536,2048,4096,8192,16384
+
+    # Set init its forked children's oom_adj.
+    write /proc/1/oom_adj -16
+
+    # Permissions for System Server and daemons.
+    chown radio system /sys/android_power/state
+    chown radio system /sys/android_power/request_state
+    chown radio system /sys/android_power/acquire_full_wake_lock
+    chown radio system /sys/android_power/acquire_partial_wake_lock
+    chown radio system /sys/android_power/release_wake_lock
+    chown radio system /sys/power/state
+    chown radio system /sys/power/wake_lock
+    chown radio system /sys/power/wake_unlock
+    chmod 0660 /sys/power/state
+    chmod 0660 /sys/power/wake_lock
+    chmod 0660 /sys/power/wake_unlock
+
+    chown system system /sys/class/timed_output/vibrator/enable
+    chown system system /sys/class/leds/keyboard-backlight/brightness
+    chown system system /sys/class/leds/lcd-backlight/brightness
+    chown system system /sys/class/leds/button-backlight/brightness
+    chown system system /sys/class/leds/red/brightness
+    chown system system /sys/class/leds/green/brightness
+    chown system system /sys/class/leds/blue/brightness
+    chown system system /sys/class/leds/red/device/grpfreq
+    chown system system /sys/class/leds/red/device/grppwm
+    chown system system /sys/class/leds/red/device/blink
+    chown system system /sys/class/leds/red/brightness
+    chown system system /sys/class/leds/green/brightness
+    chown system system /sys/class/leds/blue/brightness
+    chown system system /sys/class/leds/red/device/grpfreq
+    chown system system /sys/class/leds/red/device/grppwm
+    chown system system /sys/class/leds/red/device/blink
+    chown system system /sys/class/timed_output/vibrator/enable
+    chown bluetooth bluetooth /sys/module/board_trout/parameters/bluetooth_power_on
+    chown system system /sys/module/sco/parameters/disable_esco
+    chmod 0660 /sys/module/board_trout/parameters/bluetooth_power_on
+    chown radio audio /system/etc/AudioPara4.csv
+    chown system system /sys/kernel/ipv4/tcp_wmem_min
+    chown system system /sys/kernel/ipv4/tcp_wmem_def
+    chown system system /sys/kernel/ipv4/tcp_wmem_max
+    chown system system /sys/kernel/ipv4/tcp_rmem_min
+    chown system system /sys/kernel/ipv4/tcp_rmem_def
+    chown system system /sys/kernel/ipv4/tcp_rmem_max
+    chown root radio /proc/cmdline
+
+# Enable audio based on existing /dev/dsp
+    chmod 0666 /dev/snd/dsp
+
+# Define TCP buffer sizes for various networks
+#   ReadMin, ReadInitial, ReadMax, WriteMin, WriteInitial, WriteMax,
+    setprop net.tcp.buffersize.default 4096,87380,110208,4096,16384,110208
+    setprop net.tcp.buffersize.wifi    4095,87380,110208,4096,16384,110208
+    setprop net.tcp.buffersize.umts    4094,87380,110208,4096,16384,110208
+    setprop net.tcp.buffersize.edge    4093,26280,35040,4096,16384,35040
+    setprop net.tcp.buffersize.gprs    4092,8760,11680,4096,8760,11680
+
+    class_start default
+
+## Daemon processes to be run by init.
+##
+service console /system/bin/sh
+    console
+
+# adbd is controlled by the persist.service.adb.enable system property
+service adbd /sbin/adbd
+#    disabled
+
+# adbd on at boot in emulator
+on property:ro.kernel.qemu=1
+    start adbd
+
+# adbd on at boot in insecure builds
+on property:ro.secure=0
+    start adbd
+
+on property:persist.service.adb.enable=1
+    start adbd
+
+on property:persist.service.adb.enable=0
+    stop adbd
+
+service servicemanager /system/bin/servicemanager
+    user system
+    critical
+    onrestart restart zygote
+    onrestart restart media
+
+service vold /system/bin/vold
+    socket vold stream 0660 root mount
+
+service zygote /system/bin/app_process -Xzygote -Xint:fast /system/bin --zygote --start-system-server
+    socket zygote stream 666
+    onrestart write /sys/android_power/request_state wake
+
+service media /system/bin/mediaserver
+    user media
+    group system audio camera graphics inet net_bt net_bt_admin
+
+service dbus /system/bin/dbus-daemon --system --nofork
+    socket dbus stream 660 bluetooth bluetooth
+    user bluetooth
+    group bluetooth net_bt_admin
+
+service brick /system/bin/wipe nuke
+    disabled
+
+service installd /system/bin/installd
+    socket installd stream 600 system system
diff --git a/target/product/AndroidProducts.mk b/target/product/AndroidProducts.mk
index c51b064..60b4c9b 100644
--- a/target/product/AndroidProducts.mk
+++ b/target/product/AndroidProducts.mk
@@ -28,6 +28,7 @@
 PRODUCT_MAKEFILES := \
     $(LOCAL_DIR)/core.mk \
     $(LOCAL_DIR)/generic.mk \
+    $(LOCAL_DIR)/generic_x86.mk \
     $(LOCAL_DIR)/full.mk \
     $(LOCAL_DIR)/sdk.mk \
     $(LOCAL_DIR)/sim.mk \
diff --git a/target/product/generic_x86.mk b/target/product/generic_x86.mk
new file mode 100644
index 0000000..00f2822
--- /dev/null
+++ b/target/product/generic_x86.mk
@@ -0,0 +1,27 @@
+# This is a generic product that isn't specialized for a specific device.
+# It includes the base Android platform. If you need Google-specific features,
+# you should derive from generic_with_google.mk
+
+PRODUCT_PACKAGES := \
+    AlarmClock \
+    AlarmProvider \
+    Calendar \
+    Camera \
+    DrmProvider \
+    LatinIME \
+    Mms \
+    Music \
+    Settings \
+    Sync \
+    Updater \
+    CalendarProvider \
+    SubscribedFeedsProvider \
+    SyncProvider
+
+$(call inherit-product, $(SRC_TARGET_DIR)/product/core.mk)
+
+# Overrides
+PRODUCT_BRAND := generic_x86
+PRODUCT_DEVICE := generic_x86
+PRODUCT_NAME := generic_x86
+PRODUCT_POLICY := android.policy_phone
diff --git a/tools/apicheck/etc/apicheck b/tools/apicheck/etc/apicheck
index 9c00e25..5d0480c 100644
--- a/tools/apicheck/etc/apicheck
+++ b/tools/apicheck/etc/apicheck
@@ -38,7 +38,7 @@
 
 javaOpts=""
 while expr "x$1" : 'x-J' >/dev/null; do
-    opt=`expr "$1" : '-J\(.*\)'`
+    opt=`expr "x$1" : 'x-J\(.*\)'`
     javaOpts="${javaOpts} -${opt}"
     shift
 done