Я портировал SHRP для Android 5.1 устройств, и все прошло нормально, когда я получил эту ошибку:
/home/ricky/twrp/twrp-5.1/out/target/product/PB1770M/obj/STATIC_LIBRARIES/libguitwrp_intermediates/libguitwrp.a(action.o): In function `GUIAction::sig(std::string)':
/home/ricky/twrp/twrp-5.1/bootable/recovery/gui/action.cpp:2646: undefined reference to `TWFunc::process_space(int, int, int, int)'
/home/ricky/twrp/twrp-5.1/bootable/recovery/gui/action.cpp:2612: undefined reference to `TWFunc::process_space(int, int, int, int)'
/home/ricky/twrp/twrp-5.1/bootable/recovery/gui/action.cpp:2629: undefined reference to `TWFunc::process_space(int, int, int, int)'
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [build/core/executable_internal.mk:69: /home/ricky/twrp/twrp-5.1/out/target/product/PB1770M/obj/EXECUTABLES/recovery_intermediates/LINKED/recovery] Error 1
Вот action.ccp: https://github.com/SKYHAWK-Recovery-Project/shrp_bootable_recovery/blob/android-9.0/gui/action.cpp
Спасибо.