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POInclude Boost C++ library in android
 

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    <p>I have been trying to marry Boost and android on windows for long time and tried lot of approaches but still no luck. I want to make a sample program using Boost library in android. I am following this tutorial <a href="http://www.codexperiments.com/android/2011/05/tips-tricks-building-boost-with-ndk-r5/" rel="noreferrer">here.</a> </p> <p>As this tutorial suggested i have kept my Boost lib in ****(Android NDK)\sources\boost_1_44_0**** compiled it successfully.</p> <p>Then i made an <strong>Android.mk</strong> file inside <strong>sources/boost_1_44_0</strong> and made the entry of each library which i want to use. In this case lib. file is <strong>libboost_date_time-gcc-mt-s-1_44.a</strong> available in <strong>boost_1_44_0/android/lib/</strong><br> Here is the content of <strong>Android.mk</strong> file. </p> <pre><code>LOCAL_PATH:= $(call my-dir) include $(CLEAR_VARS) LOCAL_MODULE:= boost_date LOCAL_SRC_FILES:= boost_1_44_0/android/lib/libboost_date_time-gcc-mt-s-1_44.a LOCAL_EXPORT_C_INCLUDES := $(LOCAL_PATH) include $(PREBUILT_STATIC_LIBRARY) </code></pre> <p>Now the next step is to make an <strong>Android.mk</strong> file in my project directory, inside <strong>jni</strong> folder.(this is to create a shared library.). Here are its contents. </p> <pre><code>LOCAL_PATH := $(call my-dir) include $(call all-subdir-makefiles) include $(CLEAR_VARS) # Here we give our module name and source file(s) LOCAL_LDLIBS := -llog -ldl LOCAL_MODULE := ndkfoo LOCAL_SRC_FILES := ndkfoo.cpp LOCAL_STATIC_LIBRARIES := boost_date include $(BUILD_SHARED_LIBRARY) $(call import-module,boost_1_44_0) </code></pre> <p>Here is the Application.mk file placed on the same location, inside <strong>jni</strong> folder. Contents of Application.mk file are as follows: </p> <pre><code>APP_STL = gnustl_static #(or APP_STL = stlport_static as required) APP_CPPFLAGS = -fexceptions </code></pre> <p>And finally here is my <strong>ndkfoo.cpp</strong> file</p> <pre><code>#include &lt;string.h&gt; #include &lt;jni.h&gt; #include &lt;stdio.h&gt; #include &lt;boost/date_time.hpp&gt; using namespace boost::gregorian; void Java_com_ndkfoo_NdkfooActivity_invokeNativeFunction(JNIEnv* env, jobject javaThis) { date weekstart(2002,Feb,1); } </code></pre> <p>this program might be incorrect but the problem is that it does not recognize any boost headers or function. and i always get compilation error. </p> <p>Is there something i am missing or doing incorrectly? Any help would be really appreciated. </p> <p><strong>EDIT:</strong> <em>This question contains everything you would need to include Boost library in android. For more tips look at my answer below. Hopefully this would also work for you.</em></p> <p>Thanks.</p>
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    1. COFor one thing: your path is slightly different: in the tutorial the author has extracted to $ANDROID_NDK/sources/boost. Not sure if that makes a difference. The author's path to the lib begins with *android/..*, yours with *boost_1_44_0/android/..*. I would first try follow the tutorial exactly and see if that resolves your issues.
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    2. COya true, but i think it might not make any difference.
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    3. COknock knock anybody's there? please help me.....
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