[Development] Time to switch to android-clang
sergio.martins at kdab.com
Tue Dec 19 12:25:17 CET 2017
We need to start offering pre-built android binaries built with
android-clang and bump our minimum supported NDK version.
gcc on android is pretty much dead since 2016:
"GCC is no longer supported. It will be removed in NDK r18.
libc++ is now the default STL for CMake and standalone toolchains. If
you manually selected a different STL, we strongly encourage you to move
gnustl and stlport are deprecated and will be removed in NDK r18.  "
And the latest shipped gcc (4.9.2) is crashy , forcing gcc users to
stay on ndk r10.
The problem of clang generating bigger binaries was much improved with
-Oz, now size increase is only 10%.
Many users are already switching to android-clang due to the shipped gnu
libstdc++ having incomplete C++11 and then complaining the pre-built
binaries not being able to compile for clang+libc++.
Furthermore, supporting both android and android-clang is a maintenance
burden: the mkspecs are often broken, either because of a new Qt version
or because of a new NDK version. Then you have to test not only gcc and
clang, but also test builds with the older NDKs.
So we should also bump the NDK.
 - https://developer.android.com/ndk/downloads/revision_history.html
Sérgio Martins | sergio.martins at kdab.com | Senior Software Engineer
Klarälvdalens Datakonsult AB, a KDAB Group company
Tel: Sweden (HQ) +46-563-540090, USA +1-866-777-KDAB(5322)
KDAB - The Qt, C++ and OpenGL Experts
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