在 Eclipse 中设置环境变量以与 Android NDK 一起使用

Setting environment variables in Eclipse to use with Android NDK

提问by Igor Filippov

I use Android NDK with cygwin with Eclipse on Windows. In my makefile I want to set path of prebuild library using environment variable in eclipse. So I do the following:

我在 Windows 上将 Android NDK 与 cygwin 与 Eclipse 一起使用。在我的 makefile 中，我想在 eclipse 中使用环境变量设置预构建库的路径。所以我执行以下操作：

And in makefile:

在makefile中：

LOCAL_SRC_FILES = $(QCAR_SDK_ROOT)build/lib/$(TARGET_ARCH_ABI)/libQCAR.so
LOCAL_EXPORT_C_INCLUDES := $(QCAR_SDK_ROOT)build/include

But I get error:

但我得到错误：

Android NDK: ERROR:jni/Android.mk:QCAR-prebuilt: LOCAL_SRC_FILES points to a missing file    
/cygdrive/d/Development/Android/android-ndk-r7/build/core/prebuilt-library.mk:43: *** Android NDK: Aborting    .  Stop.
make: *** [all] Error 2
Android NDK: Check that jni//cygdrive/D/Development/Android/qcar-android-1-5-4-beta1/build/lib/armeabi/libQCAR.so exists  or that its path is correct   

Tried defining variable in makefile directly, got the same result.

尝试直接在 makefile 中定义变量，得到相同的结果。

So, obviously, that path is not what I wanted. How do I set the proper path?

所以，很明显，这条路不是我想要的。如何设置正确的路径？

回答by Rene

Why not just specify the paths in the make file? (N.B Just noticed you tried that.)

为什么不只在 make 文件中指定路径？（注意刚刚注意到你试过了。）

Using Cygwin with Android NDK

在 Android NDK 中使用 Cygwin

This site seems to indicate that the make file won't run correctly within Eclipse and you should run in via Windows Explorer. Are you running this within Eclipse? Try this and see if you still get the issues.

该站点似乎表明 make 文件无法在 Eclipse 中正确运行，您应该通过 Windows 资源管理器运行。你是在 Eclipse 中运行这个吗？试试这个，看看你是否仍然遇到问题。

回答by eozgonul

That's a problem of the previous NDK builds that Google fixed with NDK-9. "Updated ndk-build to support absolute paths in LOCAL_SRC_FILES."

这是 Google 使用 NDK-9 修复的先前 NDK 构建的问题。“更新了 ndk-build 以支持 LOCAL_SRC_FILES 中的绝对路径。”

See the release notes here:http://developer.android.com/tools/sdk/ndk/index.html

请参阅此处的发行说明：http: //developer.android.com/tools/sdk/ndk/index.html

回答by Alex Cohn

Recent NDK releases on Windows do not need cygwin. Worse, they do not recognize the cygdrive notation. You can simply use

Windows 上的最新 NDK 版本不需要 cygwin。更糟糕的是，它们无法识别 cygdrive 符号。你可以简单地使用

QCAR_SDK_ROOT = D:/Development/Android/qcar-android-1-5-4-beta1

correctionabsolute paths for LOCAL_SRC_FILES do not work for ndk.r7, and even for r9 the ANDROID-MK.doc does not encourage using absolute paths there.

更正LOCAL_SRC_FILES 的绝对路径对 ndk.r7 不起作用，即使对于 r9，ANDROID-MK.doc 也不鼓励在那里使用绝对路径。

回答by Eldar Abusalimov

Try to play with LOCAL_PATHvariable. As documentation (docs/ANDROID-MK.htmlin Android NDK package, or here) states:

尝试使用LOCAL_PATH变量。正如文档（docs/ANDROID-MK.html在 Android NDK 包中或此处）所述：

LOCAL_SRC_FILES

This is a list of source files that will be built for your module. Only list the files that will be passed to a compiler, since the build system automatically computes dependencies for you.

Note that source files names are all relative to LOCAL_PATHand you can use path components

LOCAL_SRC_FILES

这是将为您的模块构建的源文件列表。只列出将传递给编译器的文件，因为构建系统会自动为您计算依赖项。

请注意，源文件名称都是相对的LOCAL_PATH，您可以使用路径组件

Also, NDK hints you to Check that jni//cygdrive/D/Development/Android/qcar-android-1-5-4-beta1/build/lib/armeabi/libQCAR.so exists or that its path is correct.

此外，NDK 提示您使用Check that jni//cygdrive/D/Development/Android/qcar-android-1-5-4-beta1/build/lib/armeabi/libQCAR.so exists or that its path is correct.

Thus, I would try the following:

因此，我会尝试以下操作：

LOCAL_PATH := /

...or to reset it at all:

...或者完全重置它：

LOCAL_PATH :=

回答by German Attanasio

You can edit eclipse.inifile and add it there.

您可以编辑eclipse.ini文件并将其添加到那里。

e.g. -DLOCAL_SRC_FILES=/home/user/.../

例如 -DLOCAL_SRC_FILES=/home/user/.../

Or declare a path variable. It is a convenient way of sharing a common location among multiple projects within a workspace.

或者声明一个路径变量。这是在工作空间内的多个项目之间共享公共位置的便捷方式。

Hope that help you!

希望能帮到你！