Building necessitas alpha4

[Peter Saunderson]

Hi Ray,

I thought that I would have a go building the tools with your script so 
that I begin to understand the changes but I ran into a couple of problems:

1/  python build fails because /usr/bin/x86_64-linux-gnu-ar does not 
exist on my system - not an issue for me because I already have python 
on my system so I removed the python build and got further.

2/  now I am stuck "Building armeabi,armeabi-v7a gabi++ binaries..." and 
get an error
/tmp/necessitas/android-qt-ndk/ndk/build/tools/build-gabi++.sh: 93: 
local: -mthumb: bad variable name
ERROR: Could not build gabi++!

In parallel I am building with your released ndk and making some 
progress.. but it would be nice to know why I cant build the tools myself.

Peter.

On 29/08/12 18:53, Peter Saunderson wrote:
> Thanks for that, it will save me time.  By the way I noticed when I 
> pulled the QtCreator from git the .gitignore seems to have ignore of 
> lib/* and in lib/qtcomponents there seem to be a few files that are 
> not created in the build process..  Perhaps the .gitignore is not 
> correct forgit://anongit.kde.org/android-qt-creator.git 
> <git://anongit.kde.org/android-qt-creator.git> ?
>
> Peter
>
>
>
>   On 29/08/12 18:00, Ray Donnelly wrote:
>> Oh we also use Gold 2.22.52 by default which is very up to date and much faster.
>>
>> On Wed, Aug 29, 2012 at 5:57 PM, Ray Donnelly<mingw.android at gmail.com>  wrote:
>>> As I said, using Google's NDK will not work for building android qt (
>>> relocations error and libgnustl_static error -
>>> http://code.google.com/p/android/issues/detail?id=36472  ).
>>>
>>> Rather than building your own NDK from Google's code (and thus ending
>>> up with the same bugs) you should either use mine (it's the one we
>>> supply and use with Necessitas):
>>>
>>> http://mingw-and-ndk.googlecode.com/files/android-ndk-r8b-ma-windows.7z
>>> http://mingw-and-ndk.googlecode.com/files/android-ndk-r8b-ma-linux-x86.7z
>>> http://mingw-and-ndk.googlecode.com/files/android-ndk-r8b-ma-darwin-x86.7z
>>>
>>> ...or else build mine using the script we use:
>>>
>>> git at git.kde.org:necessitas-tools.git  (master branch)
>>>
>>> look at build_ndk.sh in that repo.
>>>
>>> for building android qt, look at build_sdk.sh which calls
>>> android/androidconfigbuild.sh
>>>
>>> On Wed, Aug 29, 2012 at 5:44 PM, Peter Saunderson<peteasa at gmail.com>  wrote:
>>>> Hi Ray,
>>>>
>>>> Thanks for the warnings!
>>>>
>>>> I am using Googles android-ndk-r8b NDK, with the latest compilers (v4.6)
>>>> because I wanted to use the same NDK I used for OpenCV that I also am using
>>>> on the same project - in theory it should keep things simple.  Thanks for
>>>> the answers also about using "android:" to selective configure stuff.  I
>>>> will look out for the failures that you mention.. I might end up building
>>>> the Google compiler and linker at this rate..
>>>>
>>>> Peter.
>>>>
>>>>
>>>> On 29/08/12 17:33, Ray Donnelly wrote:
>>>>> Hi Peter,
>>>>>
>>>>> Which NDK are you using? Ours or Google's? Google's won't work for 2
>>>>> reasons, their libgnustl_static.a has it's symbols invisible and also
>>>>> their linker has a bug in it to do with a specific relocation type.
>>>>>
>>>>> Also are you using the unstable branch of the Qt sources?
>>>>>
>>>>> Only libQtCore4.so gets linked to libgnustl_static.a:
>>>>>
>>>>> from qt-src\src\corelib\corelib.pro
>>>>>
>>>>> android: {
>>>>>       #add whole gnu_stl library to QtCore
>>>>>       LIBS_PRIVATE += -Wl,--whole-archive
>>>>> $$ANDROID_SOURCES_CXX_STL_LIBDIR/libgnustl_static.a
>>>>> -Wl,--no-whole-archive
>>>>> }
>>>>>
>>>>> On android libstdc++ is just a few small support functions for C++.
>>>>>
>>>>> On Wed, Aug 29, 2012 at 4:14 PM, Peter Saunderson<peteasa at gmail.com>
>>>>> wrote:
>>>>>> Hi,
>>>>>>
>>>>>> I am building from source and plan to run on an android 4.1.1.  I am
>>>>>> using
>>>>>> Ubuntu 64bit machine for the build and am using android-ndk-r8b.
>>>>>>
>>>>>> I find errors such as
>>>>>> obj/release/JSBase.o:(.ARM.extab.text.JSReportExtraMemoryCost+0x0):
>>>>>> undefined reference to `__gxx_personality_v0'
>>>>>>
>>>>>> that are fixed by adding to the .pro file
>>>>>> QMAKE_LIBS += -lgnustl_shared
>>>>>>
>>>>>> because in android the shared library file is named "libgnustl_shared.so"
>>>>>> instead of "libstdc++.so" as on other platforms (see
>>>>>> CPLUSPLUS-SUPPORT.html).
>>>>>>
>>>>>> I tried to make this change in mkspecs/android-g++/qmake.conf but had
>>>>>> other
>>>>>> errors.  Is there a construct that I can use in the .pro files such as
>>>>>> neon:*-g++* { ... }
>>>>>> that will make this change for just android builds of Qt? Is there a
>>>>>> better
>>>>>> way to fix this linker problem in necessitas?
>>>>>>
>>>>>> Thanks
>>>>>>
>>>>>> Peter.
>>>>>> _______________________________________________
>>>>>> Necessitas-devel mailing list
>>>>>> Necessitas-devel at kde.org
>>>>>> https://mail.kde.org/mailman/listinfo/necessitas-devel
>

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