How to get GCC for Qt 5.9.5?

[hslee_6560]

@SGaist I think the 6.3.0 is mingw version, not qt version. I realized mingw53_32 is in qt 5.9.5 already. But still working on it. why mingw53_32 is separated in two directories? There are C:\Qt\5.9.5\Tools\mingw530_32 and C:\Qt\5.9.5\mingw53_32. As the contents inside, former looks like MinGW side, and Latter looks like Qt side.

[SGaist]

C:\Qt\5.9.5\mingw53_32

This means that you have a 32 bit Qt version built with MinGW5.3. The subfolder name indicates which compiler was used as well as the architecture of the build.

The compiler is located under Tools.

[hslee_6560]

@SGaist I see, I think the mingw53_32 is missed something. So I want to get mingw 5.3.0 separately. is there MinGW archive something for each version of mingw? I could not find it.

[jsulm]

@hslee_6560 How did you install Qt? The Qt installer and Qt maintenance tool both give you the possibility to install MinGW.

[Jleon]

Is this problem solved? I've met the same problem. My gstreamer android version:gstreamer-1.0-android-universal-1.18.6. However windows version work perfect.

[jsulm]

@Jleon said in How to get GCC for Qt 5.9.5?:

I've met the same problem

Not really. Problem in this thread was witn MinGW build on Windows.
You have a problem with Android.
Please explain exactly what you're doing and what the problem you have.

GStreamer on Android: https://doc.qt.io/qt-5/platform-notes-gstreamer-on-android.html

[Jleon]

I build a qgc project on the windows with qt version 5.15.2 , Android setting:jdk-11,sdk version 9.0 and ndk-verison 21.3.6528147. Before importing gstreamer, it work well. After downloading gstreamer-1.0-android-universal-1.18.6, and change the GST_ROOT at VideoReceiver.pri. I run the program in the abi of arm64-v8a, I get the following error.

:/MinGW/lib/gcc/mingw32/6.3.0/include/c++/mingw32/bits/c++config.:223: Parse error at "__cxx11"
make: *** [Makefile:128648: arm64-v8a\moc_gstqsgtexture.cpp] Error 1
make: *** Waiting for unfinished jobs....
:/MinGW/lib/gcc/mingw32/6.3.0/include/c++/mingw32/bits/c++config.:223: Parse error at "__cxx11"
make: *** [Makefile:129061: arm64-v8a\moc_qtwindow.cpp] Error 1
:/MinGW/lib/gcc/mingw32/6.3.0/include/c++/mingw32/bits/c++config.:223: Parse error at "__cxx11"
make: *** [Makefile:129457: arm64-v8a\moc_qtitem.cpp] Error 1
10:21:56: The process "D:\Android\sdk\ndk\21.3.6528147\prebuilt\windows-x86_64\bin\make.exe" exited with code 2.
Error while building/deploying project qgroundcontrol (kit: Android Qt 5.15.2 Clang Multi-Abi)
When executing step "Make"

Should I modify the document of gradle?

[jsulm]

@Jleon I don't understand what you are doing: if you're building for Android then why there is mingw32 stuff in the build log?!
And you always should post the very first error.

[Jleon]

Alright the first error is AVD start error, but I thought it's irrelevant. Well my setting is the belowing:

else : android-clang {
        CONFIG += AndroidBuild MobileBuild
        DEFINES += __android__
        DEFINES += __STDC_LIMIT_MACROS
        DEFINES += QGC_ENABLE_BLUETOOTH
        DEFINES += QGC_GST_TAISYNC_ENABLED
        DEFINES += QGC_GST_MICROHARD_ENABLED
        QMAKE_CXXFLAGS_WARN_ON += -Werror \
            -Wno-unused-parameter \             # gst_plugins-good has these errors
            -Wno-implicit-fallthrough \         # gst_plugins-good has these errors
            -Wno-unused-command-line-argument \ # from somewhere in Qt generated build files
            -Wno-parentheses-equality           # android gstreamer header files
        }

I was not sure why did mingw32 in there.

[Jleon]

I found the answer.
Go to the file:C:\MinGW\lib\gcc\mingw32\6.3.0\include\c++\mingw32\bits\c++config.h
And modify the code

#define _GLIBCXX_USE_CXX11_ABI 0

from 1 to 0
But I don't think it is the best solution, it might destroy some structure.
What flags should I use in .pro to make sure the file got to know it defines to zero?

[jsulm]

@Jleon I still fail to understand what MinGW stuff has to do with Android build.
For Android the Clang compiler from NDK is used.
It seems that your environment is broken.