[mythtv] Android build

[John P Poet]

On Tue, Apr 27, 2021 at 5:40 PM Mark Spieth <mark at digivation.com.au> wrote:

> On 28/04/2021 6:52 am, John P Poet wrote:
>
> Are the instructions @
> https://github.com/MythTV/packaging/blob/master/android/Readme.md up to
> date? I am trying to build latest master on a Fedora 34 machine.
>
> First error I got was that
>
> Android/android-ndk/toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android-clang
> did not exist. To fix that I soft linked the version specific file:
> $ ln -s aarch64-linux-android29-clang aarch64-linux-android-clang
>
> Then `make SDK=29 MODE=arm64 libs` produces:
>
> I have not used the command line variables in a long time. SDK=29 should
> not be necessary.
>
> In fact the SDK=XX mode may be broken. Not sure.
>
> Not sure about the override. shouldnt need to use the SDK=29 it should be
> the default. see setenv.sh.
>
> The NDK is still on 28. The layout changed and caused problems when I
> tried it.
>
> I have recently been trying QT5.15.2 but had some problems but there are a
> couple of fixes to the setenv script for detecting tool paths which I will
> attach for you to test. This is still on QT 5.14.1 but is sort of ready to
> go for qt 5.15.2 when I figure out the issue (some API change I think).
>
> Then all I do is run 'make libs' and then 'make' or 'make distclean
> everything'
>
> my buildrc will show you which NDK's Ive been trying. use android studio
> to install ndks with the correct version.
>
> Sorry Ive been lazy and havent commited some of these updates yet. Not
> happy yet with them and I dont want to break things.
>
> See how you go. But it does work for me.
>
> Mark
>

Hi Mark,

That got me a lot further. Unfortunately it is now failing trying to build
Qt 5.14.1 using build tools 29.0.3. Should I be using a different version?

Preparing build tree...
Creating qmake...
.....................................In file included from
/home/john/src/Myth/Android/packaging/android/libs64/qt-everywhere-src-5.14.1/qtbase/include/QtCore/qfloat16.h:1,
                 from
/home/john/src/Myth/Android/packaging/android/libs64/qt-everywhere-src-5.14.1/qtbase/include/QtCore/../../src/corelib/global/qendian.h:44,
                 from
/home/john/src/Myth/Android/packaging/android/libs64/qt-everywhere-src-5.14.1/qtbase/include/QtCore/qendian.h:1,
                 from
/home/john/src/Myth/Android/packaging/android/libs64/qt-everywhere-src-5.14.1/qtbase/src/corelib/codecs/qutfcodec.cpp:43:
/home/john/src/Myth/Android/packaging/android/libs64/qt-everywhere-src-5.14.1/qtbase/include/QtCore/../../src/corelib/global/qfloat16.h:295:7:
error: ‘numeric_limits’ is not a class template
  295 | class numeric_limits<QT_PREPEND_NAMESPACE(qfloat16)> : public
numeric_limits<float>
      |       ^~~~~~~~~~~~~~
/home/john/src/Myth/Android/packaging/android/libs64/qt-everywhere-src-5.14.1/qtbase/include/QtCore/../../src/corelib/global/qfloat16.h:295:77:
error: expected template-name before ‘<’ token
  295 | class numeric_limits<QT_PREPEND_NAMESPACE(qfloat16)> : public
numeric_limits<float>
      |
        ^
/home/john/src/Myth/Android/packaging/android/libs64/qt-everywhere-src-5.14.1/qtbase/include/QtCore/../../src/corelib/global/qfloat16.h:295:77:
error: expected ‘{’ before ‘<’ token
...

Thanks,

John
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