Variable in the Android.mk file can point the build system at the appropriateįor example, assume that your project contains two versions of library You must make sure to select the right version of your prebuilt shared libraryįor your targeted ABI. Library that it installs into $PROJECT/libs//, but you can use the debug The NDK build system always strips the symbols from the version of the We recommend that you provide prebuilt shared libraries containing debug This operation allows the build system to find the necessary headers. Path onto the value of the LOCAL_C_INCLUDES for the module dependent on it. The LOCAL_EXPORT_C_INCLUDES definition here ensures that the build systemĮxports the path to the prebuilt library's include directory, prepending that LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH)/include Prebuilt module, you can declare it as follows: include $(CLEAR_VARS) For example, as longĪs header foo.h is located under the include directory associated with the Task is to use exports in the prebuilt module definition. In such a case, you need to provide the header and its include path to theĬompiler when you build the foo-user module. ForĮxample, foo-user.c might have a line like the following: #include In a header file, such as foo.h, distributed with the prebuilt library. The code in foo-user.c depends on specific declarations that normally reside LOCAL_SHARED_LIBRARIES is the name of the prebuilt, itself. Here, LOCAL_MODULE is the name of the module referring to the prebuilt The Android.mk files associated with those other modules.įor example, the description of a module using libfoo.so might be as follows: include $(CLEAR_VARS) Value of the LOCAL_STATIC_LIBRARIES or LOCAL_SHARED_LIBRARIES variable in To reference a prebuilt library from other modules, specify its name as the Reference the prebuilt library from other modules Here, $PROJECT is the root directory of your project. $PROJECT/obj/local, and another copy, stripped of debug information, into The build system places a copy of your prebuilt shared library into In this example, the name of the module is the same as that of the prebuilt In the same directory as the Android.mk file that describes it. Here is a trivial example that assumes the prebuilt library libfoo.so resides Include PREBUILT_SHARED_LIBRARY or PREBUILT_STATIC_LIBRARY, depending on Support for ABIs, see Select ABIs for prebuilt libraries. Note: You must make sure to select the version of your prebuilt libraryĪppropriate to your target ABI. In the module's Android.mk file, assign to LOCAL_SRC_FILES the path to This name does not need to be the same as that of the prebuilt You must declare each prebuilt library you use as an independent module. This page explains how to use prebuilt libraries. Using a prebuilt version of your own libraries to speed up your build.Distributing your own libraries to third-party NDK developers without.ThereĪre two principal use cases for this functionality: It seems to that I'm missing one or few environment variables, or some comiler flags.The NDK supports the use of prebuilt libraries, both static and shared. I have iostream file in android ndk folder (NDK_ROOT\sources\cxx-stl\gnu-libstdc++\include) but I don't have any idea how to tell compiler to look for iotream (and other standart header files) in that folder. LOCAL_C_INCLUDES := $(LOCAL_PATH)/include-all _android_log_print(ANDROID_LOG_DEBUG, DEBUG_TAG, "NDK:LC: ", szLogThis) Įnv->ReleaseStringUTFChars(logThis, szLogThis) Īnd here is my Android.mk file: LOCAL_PATH := $(call my-dir) Void Java_com_test_ndk_SampleActivity_helloLog(JNIEnv* env, jobject thisobj, jstring logThis)Ĭonst char * szLogThis = env->GetStringUTFChars(logThis, &isCopy) #define LOGE(.) _android_log_print(ANDROID_LOG_ERROR,LOG_TAG,_VA_ARGS_) #define LOGI(.) _android_log_print(ANDROID_LOG_INFO,LOG_TAG,_VA_ARGS_) I'm having problem with compiling cpp file using ndk-build tool (windows 7 with cygwin)Įrror appears when I try to compile cpp file with #include: jni/native.cpp:5:20: error: iostream: No such file or directory
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