Android。mk，包括所有cpp文件

I'm trying to build an Android project using the ndk, but I have run into some troubles.

我正在尝试使用ndk构建一个Android项目，但是遇到了一些麻烦。

Here's the Android.mk file that works:

这是Android。可工作的文件:

LOCAL_PATH:= $(call my-dir)

include $(CLEAR_VARS)

LOCAL_MODULE    := mylib
LOCAL_CFLAGS    := -Werror
LOCAL_SRC_FILES := main.cpp, Screen.cpp, ScreenManager.cpp  
LOCAL_LDLIBS    := -llog

include $(BUILD_SHARED_LIBRARY)

Is there a way that allows me to specify all the *.cpp files in the directory, without listing them manually under LOCAL_SRC_FILES?

有没有一种方法可以让我指定所有的*。目录中的cpp文件，没有在LOCAL_SRC_FILES下手动列出它们吗?

So far I tried using LOCAL_SRC_FILES = $(wildcard *.cpp), but it did now work, it seems that no files get selected.

到目前为止，我尝试使用LOCAL_SRC_FILES = $(通配符*.cpp)，但它现在确实有效，似乎没有文件被选中。

3 个解决方案

#1

You could try something like this...

你可以试试这个……

FILE_LIST := $(wildcard $(LOCAL_PATH)/[DIRECTORY]/*.cpp)
LOCAL_SRC_FILES := $(FILE_LIST:$(LOCAL_PATH)/%=%)

... Change [DIRECTORY] to the actual directory of the files. If they are in the same directory as your .mk file then remove that part. Create the FILE_LIST variable to find all of the .cpp files under the [DIRECTORY] directory. Then use it in the file listing. The LOCAL_SRC_FILES line will then remove the LOCAL_PATH from the listing.

…将[目录]更改为文件的实际目录。如果它们位于与.mk文件相同的目录中，则删除该部分。创建FILE_LIST变量来查找[目录]目录下的所有.cpp文件。然后在文件列表中使用它。然后，LOCAL_SRC_FILES行将从清单中删除LOCAL_PATH。

#2

I've been using this script for my Android.mk saved me so much time!

我一直在为我的Android使用这个脚本。mk帮了我很多时间!

#traverse all the directory and subdirectory
define walk
  $(wildcard $(1)) $(foreach e, $(wildcard $(1)/*), $(call walk, $(e)))
endef

#find all the file recursively under jni/
ALLFILES = $(call walk, $(LOCAL_PATH))
FILE_LIST := $(filter %.cpp, $(ALLFILES))

LOCAL_SRC_FILES := $(FILE_LIST:$(LOCAL_PATH)/%=%)

Here is the gist

这是要点

#3

How about like this:

如何是这样的:

LOCAL_SRC_FILES := $(subst $(LOCAL_PATH)/,,$(wildcard $(LOCAL_PATH)/*.cpp))

If you'd be afraid that expansion of * contains $(LOCAL_PATH)/, it might be OK:

如果您担心*的扩展包含$(LOCAL_PATH)/，那么可以:

LOCAL_SRC_FILES := $(subst $(LOCAL_PATH)/./,,$(wildcard $(LOCAL_PATH)/./*.cpp))

#1