[mythtv] Building for Android, mariadb issue

[Mark Spieth]

On 07/08/18 12:25, David Engel wrote:
> On Mon, Aug 06, 2018 at 07:47:31PM -0600, John P Poet wrote:
>> On Mon, Aug 6, 2018 at 7:19 PM David Engel <david at istwok.net> wrote:
>>
>>> On Sun, Aug 05, 2018 at 05:44:01PM -0500, David Engel wrote:
>>>> On Sun, Aug 05, 2018 at 02:49:41PM -0600, John P Poet wrote:
>>>>>>>> which ndk?
>>>>>>>> I have validated 13b
>>>>>>>> 14 onwards has missing headers.
>>>>>>>> The other thing to check is your default environment. printenv.
>>>>>>>> Not sure otherwise.
>>>>>>> I vaguely remember some nl_langinfo problem, but not the solution.
>>>>>>> I'm searching my old emails.  I'll reply if find something.
>>>>>> My search didn't yield anything.  As Mark said, make sure you're
>>> using
>>>>>> the currently, preferred NDK.  Also, make sure you run "./makelibs.sh
>>>>>> all" instead of simply "./makelibs.sh".  I know that tripped me up at
>>>>>> first.
>>>>>>
>>>>> I downloaded and linked r13b.  That seems to mess up the toolchain.
>>> Even
>>>>> after re-running maketoolchain.sh, I got:
>>>>> *
>>> /home/john/android/android-ndk/my-android-toolchain64/bin/aarch64-linux-android-gcc:
>>>>> Command not found*
>>>> I'll try to do a full install and build from scratch, but it won't be
>>>> until at least tomorrow.
>>> John,
>>>
>>> I did a full install of Android Studio/SDK/NDK and build of libs and
>>> mythfrontend today.  I updated the Readme.md to specify NDK r13b
>>> instead of r15c and removed a couple of very minor things that weren't
>>> necessary.  I also fixed a bug in makelibs.sh related to the recent
>>> library changes.  It all built and runs fine.
>>>
>>> I think the main problem you're having is trying to use the NDK
>>> installed by Android Studio.  Be sure to install the r13b (or r15c if
>>> you really want to) version manually as directed and I think you
>>> should be fine.
>>>
>>> We should eventually try to get builds to use the NDK installed by
>>> Android Studio, but that's a job for another day.
>>>
>>> David
>>>
>> Hi David,
>>
>> The instructions say
>> "After Android Studio is installed, *use it* to install the Android SDK and
>> NDK."
>>
>> It also says
>> "Install the desired SDK Tools. CMake and the *NDK* are the main ones."
>>
>> It sounds like those statements needs to be changed.
> Point taken.  Those instructions predate my involvement and being
> someone who doesn't like writing documentaton nor is any good at
> writing it, I haven't changed any more than I really need to.
>
>> The instructions also say
>> "For the NDK Get android-ndk-r13b-linux-x86_64.bin and install it in
>> ~/android *too*."
>>
>> That "*too*" implies that r13b also needs installed in ~/Android/Sdk/ as
>> nkd-bundle?
> That definitely needs clarification.  I don't even know if the NDK
> installed by Studio is even needed.  The one installed manually
> absolutely is since those tools are the ones used by makelibs.sh and
> mythbuild.sh.
>
>> You are building it for Android version 26 (Oreo), right?
>>
>> Thank you for your help with this!
> I run on Oreo on my Shields.  The version on the Mecool I occasionally
> run on is Nougat and the FireTv I also occasionally run on is whatever
> custom version Amazon has.  The target API level defined in
> mythbuild.sh is the default 21 which is Lollipop.
>
>
For clarity

$ ll ~/android

drwxr-xr-x  12 mark mark    4096 Aug  4 11:18 .

drwxr-xr-x 178 mark mark   20480 Aug  7 12:34 ..

lrwxrwxrwx   1 mark mark      16 Feb 13 10:46 android-ndk -> android-ndk-r13b

drwxr-xr-x  10 mark mark    4096 Aug  8  2016 android-ndk-r12b

drwxr-xr-x  13 mark mark    4096 Feb 17 22:43 android-ndk-r13b

drwxr-xr-x  14 mark mark    4096 Feb  3  2018 android-ndk-r15c

drwxr-xr-x  18 mark mark    4096 Jan  4  2018 android-sdk-linux

drwxrwxr-x   8 mark mark    4096 Jan  4  2018 android-studio

-rw-r--r--   1 mark mark    3944 Feb 20  2015 digivation.keystore

-rw-r--r--   1 mark mark    3890 Feb 20  2015 digivation-release.keystore

-rwxr-xr-x   1 mark mark    1221 Feb 20 16:04 maketoolchain.sh

-rwxr-xr-x   1 mark mark     978 Jan  4  2018 setenv.sh

lrwxrwxrwx   1 mark mark      30 Feb 14  2015 studio.sh -> ./android-studio/bin/studio.sh

maketoolchain.sh use the defaults : sdk:21, stl:gnustl, gccversion:4.9

HTH

Mark