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Editorial Team
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Asked: 2026-05-28T00:37:05+00:00

I am trying to write a simple Android application using the NDK and C++.

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I am trying to write a simple Android application using the NDK and C++. Specifically, I’d like to use the gnustdc++ included with the newest version of the NDK (r7). The JNI library has compiled and worked perfectly fine as C, but now that I’m trying to introduce C++, I’ve run into some issues.

I have added ${NDK_ROOT}/sources/cxx-stl/gnu-libstdc++/include/ to my project’s include paths, and the #includes inline are resolved. However, attempting to actually use any STL class (such as vector) results in Symbol 'vector' could not be resolved.

All of the standard C symbols imported from <stdlib.h> and such work as well, until I try to replace the #include with <cstdlib>. Then it fails with Function 'malloc' could not be resolved and so forth.

Oddly enough, adding the stlport headers (in ${NDK_ROOT}/sources/cxx-stl/stlport/stlport) fixes all of my issues. However I am linking in GNU C++, not STLPort, so this is an inconvenient and improper “solution” at best. It seems odd that these headers would work but the others would not. Is Eclipse failing to index or resolve the GNU C++ headers?

Android.mk

LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)

LOCAL_MODULE := libfoobar-jni
LOCAL_SRC_FILES := foobar.cpp
LOCAL_LDLIBS := -llog -lGLESv2

LOCAL_C_INCLUDES := sources/cxx-stl/gnu-libstdc++/include/
LOCAL_CFLAGS := -g -std=c99

include $(BUILD_SHARED_LIBRARY)

Application.mk

APP_STL := gnustl_shared

Edit: I set up my project based on:

http://mhandroid.wordpress.com/2011/01/23/using-eclipse-for-android-cc-development/

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1 Answer

  1. Editorial Team

    Read this, it has the solution:

    http://comments.gmane.org/gmane.comp.handhelds.android.ndk/14371

    The summary, in case the link dies some day is this:

    It’s a bug in the gnustl_shared module declaration. Sorry about that, it will be fixed in the next release.
    In the meantime, you can manually change $NDK/sources/cxx-stl/gnu-libstdc++/Android.mk and replace the line that says:

    LOCAL_EXPORT_LDLIBS := $(LOCAL_PATH)/libs/$(TARGET_ARCH_ABI)/libsupc++.a

    with:

    LOCAL_EXPORT_LDLIBS := $(call host-path,$(LOCAL_PATH)/libs/$(TARGET_ARCH_ABI)/libsupc++.a)
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