Building from Source - std::atomic issue with VS2015

aha_1980

Also, make sure you install all updates to your Visual Studio.

So true

Surly

@sierdzio Thank you for reminding me about the updates... It was compiling BEFORE running updates on VS2015, afterwards, not so lucky :( When I get back to the system I will go through install of VS2015 again and make sure I have everything C++ related installed.

Any idea what exactly std::atomic is and why there might be issues with it? I am wondering if there is something in particular I should be looking for ;)

sierdzio

@Surly said in Building from Source - std::atomic issue with VS2015:

Any idea what exactly std::atomic is and why there might be issues with it? I am wondering if there is something in particular I should be looking for ;)

Simplifying: atomic operations are things that are guaranteed to be done in single CPU cycle - it can be used to synchronize threads without using mutexes. See, for example the docs for QAtomicInteger.

The problem with MSVC is that their implementation of std:atomic is missing/ buggy. Qt has a fallback implementation for compilers which do not support std::atomic, thought I don't remember how to turn it back on. You can as on Qt interest mailing list, Qt devs often discuss atomics there and should be able to help.

Surly

I uninstalled VS2015 and reinstalled and got things building! Now I am getting the following error regarding compiling what looks to be bluetooth libraries, which I do NOT need. What is the configuration option to turn them off?

The options I used are:

Command line: -debug-and-release -opensource -confirm-license -platform win32-msvc2015 -skip qtwebengine

	cl -c -FIQtBluetoothDepends -YuQtBluetoothDepends -Fp.pch\debug\Qt5Bluetoothd_pch.pch -nologo -Zc:wchar_t -FS -Zc:rvalueCast -Zc:inline -Zc:strictStrings -Zc:throwingNew -Zi -MDd -utf-8 /wd4530 /wd4577 -W3 -w34100 -w34189 -w44996 -w44456 -w44457 -w44458 -wd4577 -wd4467 /Fd.obj\debug\Qt5Bluetoothd.vc.pdb -DUNICODE -D_UNICODE -DWIN32 -DQT_WINRT_BLUETOOTH -DCLASSIC_APP_BUILD -DQT_WINRT_LIMITED_SERVICEDISCOVERY -DQT_UCRTVERSION=10240 -DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT -DQT_BUILD_BLUETOOTH_LIB -DQT_BUILDING_QT -D_CRT_SECURE_NO_WARNINGS -D_USE_MATH_DEFINES -DQT_NO_CAST_TO_ASCII -DQT_ASCII_CAST_WARNINGS -DQT_MOC_COMPAT -DQT_USE_QSTRINGBUILDER -DQT_DEPRECATED_WARNINGS -DQT_DISABLE_DEPRECATED_BEFORE=0x040800 -DQT_NO_EXCEPTIONS -DQT_CORE_LIB -D_WINDLL -I. -I..\..\include -I..\..\include\QtBluetooth -I..\..\include\QtBluetooth\5.11.0 -I..\..\include\QtBluetooth\5.11.0\QtBluetooth -Itmp -IC:\Qt\5.11.0\qtbase\include\QtCore\5.11.0 -IC:\Qt\5.11.0\qtbase\include\QtCore\5.11.0\QtCore -IC:\Qt\5.11.0\qtbase\include -IC:\Qt\5.11.0\qtbase\include\QtCore -I.moc\debug -IC:\Qt\5.11.0\qtbase\mkspecs\win32-msvc -Fo.obj\debug\ @C:\Users\sam\AppData\Local\Temp\nmDB77.tmp
qbluetoothdevicediscoveryagent_winrt.cpp
.\qbluetoothdevicediscoveryagent_winrt.cpp(457): error C2065: 'IBluetoothLEDevice2': undeclared identifier
.\qbluetoothdevicediscoveryagent_winrt.cpp(457): error C2923: 'Microsoft::WRL::ComPtr': 'IBluetoothLEDevice2' is not a valid template type argument for parameter 'T'
.\qbluetoothdevicediscoveryagent_winrt.cpp(457): error C2133: 'device2': unknown size
.\qbluetoothdevicediscoveryagent_winrt.cpp(457): error C2512: 'Microsoft::WRL::ComPtr': no appropriate default constructor available
C:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\winrt\wrl\client.h(172): note: see declaration of 'Microsoft::WRL::ComPtr'
.\qbluetoothdevicediscoveryagent_winrt.cpp(458): error C2672: 'Microsoft::WRL::ComPtr<ABI::Windows::Devices::Bluetooth::IBluetoothLEDevice>::As': no matching overloaded function found
.\qbluetoothdevicediscoveryagent_winrt.cpp(458): error C2784: 'HRESULT Microsoft::WRL::ComPtr<ABI::Windows::Devices::Bluetooth::IBluetoothLEDevice>::As(Microsoft::WRL::ComPtr<U> *) throw() const': could not deduce template argument for 'Microsoft::WRL::ComPtr<U> *' from 'Microsoft::WRL::ComPtr *'
C:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\winrt\wrl\client.h(439): note: see declaration of 'Microsoft::WRL::ComPtr<ABI::Windows::Devices::Bluetooth::IBluetoothLEDevice>::As'
.\qbluetoothdevicediscoveryagent_winrt.cpp(458): error C2784: 'HRESULT Microsoft::WRL::ComPtr<ABI::Windows::Devices::Bluetooth::IBluetoothLEDevice>::As(Microsoft::WRL::Details::ComPtrRef<Microsoft::WRL::ComPtr<U>>) throw() const': could not deduce template argument for 'Microsoft::WRL::Details::ComPtrRef<Microsoft::WRL::ComPtr<U>>' from 'Microsoft::WRL::ComPtr *'
C:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\winrt\wrl\client.h(432): note: see declaration of 'Microsoft::WRL::ComPtr<ABI::Windows::Devices::Bluetooth::IBluetoothLEDevice>::As'
.\qbluetoothdevicediscoveryagent_winrt.cpp(461): error C2678: binary '->': no operator found which takes a left-hand operand of type 'Microsoft::WRL::ComPtr' (or there is no acceptable conversion)
C:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\winrt\wrl\client.h(335): note: could be 'Details::RemoveIUnknown<T>::ReturnType *Microsoft::WRL::ComPtr<T>::operator ->(void) throw() const'
.\qbluetoothdevicediscoveryagent_winrt.cpp(461): note: while trying to match the argument list '(Microsoft::WRL::ComPtr)'
.\qbluetoothdevicediscoveryagent_winrt.cpp(461): error C2039: 'get_DeviceInformation': is not a member of 'Microsoft::WRL::ComPtr'
C:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\winrt\wrl\client.h(172): note: see declaration of 'Microsoft::WRL::ComPtr'
NMAKE : fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\BIN\cl.EXE"' : return code '0x2'
Stop.
NMAKE : fatal error U1077: '"C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\BIN\nmake.exe"' : return code '0x2'
Stop.
NMAKE : fatal error U1077: 'cd' : return code '0x2'
Stop.
NMAKE : fatal error U1077: 'cd' : return code '0x2'
Stop.
NMAKE : fatal error U1077: 'cd' : return code '0x2'
Stop.

jsulm

@Surly I would assume

./configure -skip qtbluetooth

http://doc.qt.io/qt-5/configure-options.html

sierdzio

@Surly said in Building from Source - std::atomic issue with VS2015:

What is the configuration option to turn them off?

-skip qtconnectivity

Surly

thank you everyone, I got it built!!!

sierdzio

Nice! Happy coding :-)

Surly

Turns out there is one more question... I am upgrading from 4.8.4 to 5.11.0. Both live in C:\Qt\4.8.4 and C:\Qt\5.11.0. Upon compiling 4.8.4 there is a C:\Qt\4.8.4\bin, but with 5.11.0 the only bin directory is within qtbase: C:\Qt\5.11.0\qtbase\bin.

The VS2015 Addon was looking for the bin directory the same place it was for 4.8.4. Did I get a configuration option wrong that prevented the top level bin directory from being created?

sierdzio

I wonder... why not use the pre-built Qt from installers? They do support VS2015, too.

Anyway, back to the topic: I have not worked on Windows for several years now, so I can't say with certainty. But on Linux, after configure, make and make install is run, the directory is still <prefix>/bin, same as in Qt 4.8. Perhaps you forgot to install? Depending on whether you are using -prefix or not, that step may be required or unnecessary. Check last lines of configure output, it usually says if install needs to be run or not.

Surly

I did forget the install, it has been a while since I did this:)

Why not the precompiled source? Good question, all I know is that I have always compiled the source myself and old habits are hard to break;)