Cross compile QT5.8 on windows for Rpi

[tiagojanz]

Hi,

 

I followed  the tutorial at https://visualgdb.com/tutorials/raspberry/qt/embedded/ but  when I try to configure it gives this error

 

TVale@DEVRPK01 /c/Users/TVale/downloads
$ mkdir qt-build

TVale@DEVRPK01 /c/Users/TVale/downloads
$ cd qt-build

TVale@DEVRPK01 /c/Users/TVale/downloads/qt-build
$ ../qt-everywhere-opensource-src-5.8.0/configure -platform win32-g++ -xplatform linux-arm-gnueabi-
g++ -release -opengl es2 -device linux-rasp-pi2-g++ -sysroot C:/SysGCC/RaspberryQT57/arm-linux-gnue
abihf/sysroot -prefix /usr/local/qt5
+ cd qtbase
+ /c/Users/TVale/downloads/qt-everywhere-opensource-src-5.8.0/qtbase/configure -top-level -platform win32-g++ -xplatform linux-arm-gnueabi-g++ -release -opengl es2 -device linux-rasp-pi2-g++ -sysroot C:/SysGCC/RaspberryQT57/arm-linux-gnueabihf/sysroot -prefix /usr/local/qt5
Which edition of Qt do you want to use ?

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o
This is the Qt Open Source Edition.

You are licensed to use this software under the terms of
the GNU Lesser General Public License (LGPL) version 3.
You are also licensed to use this software under the terms of
the GNU General Public License (GPL) version 2.

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Do you accept the terms of either license? yes

Preparing build tree…
Creating qmake…
………………………………………………………..c:/Users/TVale/downloads/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/io/qsettings.cpp:954:40: error: ‘KNOWNFOLDERID’ does not name a type
static QString windowsConfigPath(const KNOWNFOLDERID &type)
^
c:/Users/TVale/downloads/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/io/qsettings.cpp:954:55: error: ISO C++ forbids declaration of ‘type’ with no type [-fpermissive]
static QString windowsConfigPath(const KNOWNFOLDERID &type)
^
c:/Users/TVale/downloads/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/io/qsettings.cpp: In function ‘QString windowsConfigPath(const int&)’:
c:/Users/TVale/downloads/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/io/qsettings.cpp:959:36: error: ‘KF_FLAG_DONT_VERIFY’ was not declared in this scope
if (SHGetKnownFolderPath(type, KF_FLAG_DONT_VERIFY, NULL, &path) == S_OK) {
^
c:/Users/TVale/downloads/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/io/qsettings.cpp:959:68: error: ‘SHGetKnownFolderPath’ was not declared in this scope
if (SHGetKnownFolderPath(type, KF_FLAG_DONT_VERIFY, NULL, &path) == S_OK) {
^
c:/Users/TVale/downloads/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/io/qsettings.cpp:965:21: error: ‘FOLDERID_ProgramData’ was not declared in this scope
if (type == FOLDERID_ProgramData) {
^
c:/Users/TVale/downloads/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/io/qsettings.cpp:967:28: error: ‘FOLDERID_RoamingAppData’ was not declared in this scope
} else if (type == FOLDERID_RoamingAppData) {
^
c:/Users/TVale/downloads/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/io/qsettings.cpp: In function ‘void initDefaultPaths(QMutexLocker*)’:
c:/Users/TVale/downloads/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/io/qsettings.cpp:1069:64: error: ‘FOLDERID_RoamingAppData’ was not declared in this scope
const QString roamingAppDataFolder = windowsConfigPath(FOLDERID_RoamingAppData);
^
c:/Users/TVale/downloads/qt-everywhere-opensource-src-5.8.0/qtbase/src/corelib/io/qsettings.cpp:1070:61: error: ‘FOLDERID_ProgramData’ was not declared in this scope
const QString programDataFolder = windowsConfigPath(FOLDERID_ProgramData);
^
make.exe: *** [qsettings.o] Error 1

TVale@DEVRPK01 /c/Users/TVale/downloads/qt-build

 

 

 

 

thank you

[grrizzly]

Getting the exact same issue, any tips?

[axeljaeger]

I am having exactly the same issue. What I found out so far:

qsettings.cpp was changed between 5.7 and 5.8 to use KNOWNFOLDERID:

https://bugreports.qt.io/browse/QTBUG-50570

http://code.qt.io/cgit/qt/qtbase.git/commit/src/corelib/io/qsettings.cpp?id=60054b5940b19f4dd9780e63da1e2dce45baf131

I do not see that qsettings.cpp includes Knownfolders.h that contains that typedef:

https://msdn.microsoft.com/en-us/library/windows/desktop/dd378457(v=vs.85).aspx 

Things to try out:

• Try compiling Qt 5.7 and report whether this works and report any other issues because they will very likely also occur with 5.8 and we can find solutions for them in the meantime.
• Find Knownfolders.h. I was not able to find it using the windows search in the includepaths of my MinGW installation. Shouldn’t it be there and just including it in qsettings.cpp should solve the issue?

Best regars

Axel

 

[axeljaeger]

It looks like the mingw that sysprogs offers for download and that we use to try to compile qmake on windows does not come with knownfolders.h.

I manually copied knownfolders.h and winapifamily.h from the Qt mingw to the include dir of the sysprogs mingw and added #include “Knownfolders.h” to qsettings.cpp. It went a bit further but ultimately failed again during compiling so I guess a bit more is missing.

To me it looks like sysprogs needs to include more header files to be able to compile 5.8 out of the box.

[Landolfi]

Hi all.

I’m stuck at the same point. Any advice?

Thank you

[deod]

+1 getting stuck

Any update on this issue?

@axeljaeger any luck with adding more headers?

[Author]

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