[mythtv-users] android compiling - gcc missing

[David Hampton]

On Sun, 2020-01-12 at 14:30 +0000, Tim Draper wrote:
> I've encountered a number of issues with the apk's that Peter Bennett
> has created and i'm looking at compiling myself to ensure things
> havent been fixed. Nothing obviously fixed in the commits but worth a
> go, even if it's just to gain some experience cross compiling.
> 
> specifically, issues with the APK on a Shield TV Pro as follows:
> mythfrontend-20190625-arm64-v30.0-60-gb9c1b41a6c0.apk  < does not
> provide surround AudioTrack sound, so limited to OpenSLES (stereo
> only)
> mythfrontend-20190724-arm64-v31-Pre-539-gff6bd41e0c0.apk < OpenSLES
> enabled but has font rendering issues in some themes (videos section
> in mythbuntu theme). also getting very occasional dropped frames
> during playback that i've not yet seen on the above v30 apk or my
> other FE's.
> 
> 
> since both of these are as good as 6months old now i figured i'd
> compile myself to test further but i keep hitting c++/gcc missing
> error when running the './makelibs.sh all' step from git instructions
> (https://github.com/MythTV/packaging/tree/master/android, step4)
> 
> exact error is 
> # ./makelibs.sh all
> ...
> checking if we have a C++ compiler... no
> configure: error: C++ compiler g++ does not work or no compiler found
> ~/git/mythtv-packaging/android/libs64/icu ~/git/mythtv-
> packaging/android/libs64 ~/git/mythtv-packaging/android
> 
> What am i missing to get it to see gcc?
> 
> I'm on Fedora31, gcc is installed at /usr/bin/gcc, and i've also
> symlinked it to ~/git/mythtv-packaging/android/gcc but still no go (i
> assume that path is listed because it's where the script is looking
> for it).

You need a cross compiler that runs on x86_64 and outputs instructions
for ARM.  I don't remember building mine, but it must have been in the
instructions for setting up android compiles.  For me its in 
.../android-ndk/my-android-toolchain64/bin/aarch64-linux-android-gcc

David