Cannot ndk-build a static library with gnustl_shared

Asked Mar 07 '17 at 11:05

Active Mar 13 '17 at 06:02

Viewed 384 times

I want to build a static library, say libstatic.a, linking with gnustl_shared

static.hpp

namespace Static {
  void func();
}

static.cpp

#include "static.hpp"
#include <iostream>

namespace Static {
  void func() {
    std::cout << "Static::func()." << std::endl;
  }
}

Android.mk

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
LOCAL_MODULE := libstatic
LOCAL_SRC_FILES := static.cpp
include $(BUILD_STATIC_LIBRARY)

Application.mk

NDK_TOOLCHAIN_VERSION := 4.9
APP_ABI := x86_64
APP_STL := gnustl_shared
APP_PLATFORM := android-21
APP_CPPFLAGS := -std=c++11 -frtti -fexceptions
APP_OPTIM := debug

I run ndk-build and only libgnustl_shared.so is copied. No static library is generated.

[x86_64] Prebuilt       : libgnustl_shared.so <= <NDK>/sources/cxx-stl/gnu-libstdc++/4.9/libs/x86_64/
[x86_64] Install        : libgnustl_shared.so => libs/x86_64/libgnustl_shared.so

Directory structure

├── jni
│   ├── Android.mk
│   ├── Application.mk
│   ├── static.cpp
│   └── static.hpp

Anyone has any idea what could be wrong?

edited Mar 13 '17 at 06:02

asked Mar 07 '17 at 11:05

cck

Have you checked the `obj/local` subdirectories? What if you insert something in `static.cpp` that isn't valid C++? Do you get a compilation error then? – Michael Mar 08 '17 at 09:23
Is that the full output of the ndk-build command? If not, will you edit the post to show the full output? – Martin Mar 09 '17 at 17:18
@Michael No compilation error. Looks like ndk not trying to compile static.cpp! – cck Mar 10 '17 at 07:08
@MartinK.Brown Yes, that's the full output. – cck Mar 10 '17 at 07:08
What does your directory structure look like, and what files are in the directories? – Martin Mar 10 '17 at 13:28
@MartinK.Brown Updated. Actually I think the directory structure is OK because if I used BUILD_SHARED_LIBRARY everything is fine. – cck Mar 13 '17 at 06:03
@cck Try this http://stackoverflow.com/a/22172651/1445466 – Martin Mar 13 '17 at 12:38
@MartinK.Brown Thanks a lot! It works! – cck Mar 16 '17 at 02:10
@cck You're welcome. How about saying thanks with an upvote on that comment as well? – Martin Mar 16 '17 at 10:39
@MartinK.Brown I'd love to, but my reputation... – cck Mar 17 '17 at 05:01

Cannot ndk-build a static library with gnustl_shared

0 Answers0