Boost for Android
Boost for android is a set of tools to compile the main part of the Boost C++ Libraries for the Android platform.
Currently supported boost versions are 1.45.0, 1.48.0, 1.49.0 and 1.53.0. Boost 1.54.0 and 1.55.0 shall be considered experimental.
To compile Boost for Android you may use one of the following NDKs:
|NDK / boost||1.45||1.48||1.49||1.53|
|r4 customized by Dmitry Moskalchuk aka CrystaX.||x|
|r5 from the official android repository.||x|
|r5 customized by CrystaX.||x|
|r7 customized by CrystaX.||x||x||x|
|r8 from the official android repository.||x||x||x|
|r8b from the official android repository.||x||x|
|r8c from the official android repository.||x|
|r8d from the official android repository.||x||x|
|r8e from the official android repository.||x||x|
|r10 from the official android repository.||x||x|
NOTE: Do not forget to replace backslash with slashes in $(NDK_ROOT). For example set $(NDK_ROOT) to D:/android-ndk-r8e instead of D:\android-ndk-r8e
On windows you will need MSYS to be able to launch the corresponding bat files (http://www.mingw.org/wiki/MSYS).
This command will download and build boost against the NDK specified and output the final headers and libs in the
build folder. Make sure to provide an absolute path the the NDK folder!
For more info about usage and available commands use
Now that you got Boost compiled you must add it to your
Android.mk file. Locate the
build folder and copy the
lib folders over to your project's
jni folder. A recommended path inside your project is
Add the following to your
Android.mk (note that here we're using Boost 1.48 and have assumed that Boost resides inside
LOCAL_CFLAGS += -I$(LOCAL_PATH)/boost/include/boost-1_48 LOCAL_LDLIBS += -L$(LOCAL_PATH)/boost/lib/ -lboost_system -lboost_... LOCAL_CPPFLAGS += -fexceptions LOCAL_CPPFLAGS += -frtti
ndk-build to build and have fun with it!
Note that you should build your project and Boost with the same version of NDK as the C++ STL inside NDK r4 and NDK r5 are not compatible in some subtle details.
The projects is split into two main branches, the master and devel. The master branch is where the current stable version lies and which should be used in most of the cases, the devel branch in turn is where development occurs. To contribute to the project make sure to use the devel branch which will make it easier to test changes and to merge incoming pull requests (PR).
In case you encounter bunch of linker errors when building your app with boost, this might help:
Building from a 64 bit machine (Linux)
Make sure you have installed the 32 bit libraries. Those are required to be able to use the NDK.
To install them just use the following
$ sudo apt-get install ia32-libs
NDK 7 (CrystaX)
-lgnustl_static AFTER all boost libraries to the LOCAL_LDLIBS line in
LOCAL_LDLIBS += lboost_system-gcc-md lboost_thread-gcc-md -lgnustl_static
NDK 8 (official)
Do everything that is in the NDK 7 Crystax section, but also add full path to the gnustl_static library to the link paths. Example:
LOCAL_LDLIBS += lboost_system-gcc-md lboost_thread-gcc-md \ -L$(NDK_ROOT)/sources/cxx-stl/gnu-libstdc++/libs/armeabi \ -lgnustl_static