marco@marco-pc:~/hadk$ make -j4 hybris-hal
============================================
PLATFORM_VERSION_CODENAME=REL
PLATFORM_VERSION=8.1.0
TARGET_PRODUCT=lineage_whyred
TARGET_BUILD_VARIANT=userdebug
TARGET_BUILD_TYPE=release
TARGET_ARCH=arm64
TARGET_ARCH_VARIANT=armv8-a
TARGET_CPU_VARIANT=kryo
TARGET_2ND_ARCH=arm
TARGET_2ND_ARCH_VARIANT=armv7-a-neon
TARGET_2ND_CPU_VARIANT=cortex-a53
HOST_ARCH=x86_64
HOST_2ND_ARCH=x86
HOST_OS=linux
HOST_OS_EXTRA=Linux-4.18.0-13-generic-x86_64-with-Ubuntu-18.10-cosmic
HOST_CROSS_OS=windows
HOST_CROSS_ARCH=x86
HOST_CROSS_2ND_ARCH=x86_64
HOST_BUILD_TYPE=release
BUILD_ID=OPM2.171019.029.B1
OUT_DIR=/home/marco/hadk/out
============================================
ninja: no work to do.
[1/2] glob external/*/Android.bp
ninja: no work to do.
$(shell build/tools/findleaves.py --prune=.repo --prune=.git --mindepth=2 --dir=. Android.mk) was changed, regenerating...
[265/499] including ./frameworks/rs/Android.mk ...
vendor/lineage/build/core/clear_vars.mk: warning: RSUnbundledTests: Unknown installed file for module RSTestBackward
vendor/lineage/build/core/clear_vars.mk: warning: RSUnbundledTests: Unknown installed file for module RSTest_Compat
vendor/lineage/build/core/clear_vars.mk: warning: RSUnbundledTests19: Unknown installed file for module RSTestBackward19
vendor/lineage/build/core/clear_vars.mk: warning: RSUnbundledTests19: Unknown installed file for module RSTest_Compat19
[394/499] including ./hybris/hybris-boot/Android.mk ...
./hybris/hybris-boot/Android.mk:71: warning: ********************* /boot appears to live on /dev/block/bootdevice/by-name/boot
./hybris/hybris-boot/Android.mk:72: warning: ********************* /data appears to live on /dev/block/bootdevice/by-name/userdata
[499/499] including ./vendor/xiaomi/whyred/Android.mk ...
./frameworks/base/Android.mk:1284: warning: overriding commands for target `/index.html'
./frameworks/base/Android.mk:1248: warning: ignoring old commands for target `/index.html'
build/core/Makefile:34: warning: overriding commands for target `/home/marco/hadk/out/target/product/whyred/system/framework/com.qti.snapdragon.sdk.display.jar'
build/core/base_rules.mk:391: warning: ignoring old commands for target `/home/marco/hadk/out/target/product/whyred/system/framework/com.qti.snapdragon.sdk.display.jar'
build/core/Makefile:34: warning: overriding commands for target `/home/marco/hadk/out/target/product/whyred/vendor/lib/hw/consumerir.default.so'
build/core/base_rules.mk:391: warning: ignoring old commands for target `/home/marco/hadk/out/target/product/whyred/vendor/lib/hw/consumerir.default.so'
build/core/Makefile:34: warning: overriding commands for target `/home/marco/hadk/out/target/product/whyred/vendor/lib64/hw/consumerir.default.so'
build/core/base_rules.mk:391: warning: ignoring old commands for target `/home/marco/hadk/out/target/product/whyred/vendor/lib64/hw/consumerir.default.so'
build/core/Makefile:34: warning: overriding commands for target `/home/marco/hadk/out/target/product/whyred/vendor/lib64/hw/fingerprint.default.so'
build/core/base_rules.mk:391: warning: ignoring old commands for target `/home/marco/hadk/out/target/product/whyred/vendor/lib64/hw/fingerprint.default.so'
[ 50% 1/2] glob external/*/Android.bp
ninja: error: 'libhwc2_compat_layer', needed by 'hybris-hal', missing and no known rule to make it
19:24:17 ninja failed with: exit status 1

#### failed to build some targets (01:25 (mm:ss)) ####