Merge "libbacktrace: enable -fno-omit-frame-pointer for host build."

ifeq ($(build_type),host)

  # Only build if host builds are supported.

  ifeq ($(build_host),true)

    LOCAL_CFLAGS += -Wno-extern-c-compat -fno-omit-frame-pointer

    include $(LLVM_HOST_BUILD_MK)

    # -fno-omit-frame-pointer should be set for host build. Because currently

    # libunwind can't recognize .debug_frame using dwarf version 4, and it relies

    # on stack frame pointer to do unwinding on x86.

    # $(LLVM_HOST_BUILD_MK) overwrites -fno-omit-frame-pointer. so the below line

    # must be after the include.

    LOCAL_CFLAGS += -Wno-extern-c-compat -fno-omit-frame-pointer

    include $(BUILD_HOST_$(build_target))

  endif

endif