Я вспомнил, что пробовал сэмплы fastcv и описал работающую технику. Поэтому я просмотрел его и нашел еще один make-файл в корне проекта. Я добавил его в образец QCAR, и теперь, похоже, он работает.
Я новичок в makefiles, но я думаю, что ключ в определении 'all' как 'ndk-build':
#
# Determine host system and architecture from the environment
# (Borrowed from NDK makefile "init.mk"
#
HOST_OS := $(strip $(HOST_OS))
ifndef HOST_OS
# On all modern variants of Windows (including Cygwin and Wine)
# the OS environment variable is defined to 'Windows_NT'
#
# The value of PROCESSOR_ARCHITECTURE will be x86 or AMD64
#
ifeq ($(OS),Windows_NT)
HOST_OS := windows
else
# For other systems, use the `uname` output
UNAME := $(shell uname -s)
ifneq (,$(findstring Linux,$(UNAME)))
HOST_OS := linux
endif
ifneq (,$(findstring Darwin,$(UNAME)))
HOST_OS := darwin
endif
# We should not be there, but just in case !
ifneq (,$(findstring CYGWIN,$(UNAME)))
HOST_OS := windows
endif
ifeq ($(HOST_OS),)
$(error Unable to determine HOST_OS from uname -s: $(UNAME))
$(error Please define HOST_OS in your environment.)
endif
endif
$(info Host OS was auto-detected: $(HOST_OS))
else
$(info Host OS from environment: $(HOST_OS))
endif
#
# Define function to fix path names to work with Make
#
ifeq ($(HOST_OS),windows)
fixpath = $(shell cygpath $(subst \,/,$(1)))
else
fixpath = $(1)
endif
# Fix working directory path for NDK tools
PWD := $(call fixpath,$(PWD))
# Fix Android NDK root path
ANDROID_NDK_ROOT := $(call fixpath,$(ANDROID_NDK_ROOT))
all:
@$(ANDROID_NDK_ROOT)ndk-build
clean:
@$(ANDROID_NDK_ROOT)ndk-build clean