Can't build using 3rd party libraries

RingAndReed

I have a problem accessing a 3rd party library (SMS) in QT Creator.
I'm on Windows 10, 64 bit
Qt Creator 4.2.1 - Based on Qt 5.8.0 (MSVC 2015, 32 bit)
Using Visual Studio 2015 (Community and Enterprise) with update 3

In Visual Studio, I was able to correct the problem using Windows Environment Variables and by setting Character Set to Unicode. But I would really prefer to use Qt Creator for an IDE.

In Qt Creator, the simplest code referring to SMS produces the build error below. There are no *d.dll or *d.lib files (no debugging versions) but that does not seem to prevent debugging my own code in Visual Studio. I have tried release-mode building in Qt Creator, but that did not help. I have even tried modifying the *.pro file with an absolute path - no go.

Can anyone tell me how to buildling with these 3rd party libraries?
Thanks!

The build error:

	link /NOLOGO /DYNAMICBASE /NXCOMPAT /INCREMENTAL:NO /SUBSYSTEM:WINDOWS "/MANIFESTDEPENDENCY:type='win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' publicKeyToken='6595b64144ccf1df' language='*' processorArchitecture='*'" /MANIFEST:embed /OUT:release\legereModeler.exe @C:\Users\ROBIN_~1\AppData\Local\Temp\legereModeler.exe.4552.1922.jom
surfacesmoother.obj : error LNK2019: unresolved external symbol "void __cdecl iwos_WriteBuffer(char const *,char const *,char const *)" (?iwos_WriteBuffer@@YAXPEBD00@Z) referenced in function "public: virtual void __cdecl IwTArray<class IwVector3d>::Dump(void)const " (?Dump@?$IwTArray@VIwVector3d@@@@UEBAXXZ)
surfacesmoother.obj : error LNK2001: unresolved external symbol "public: virtual void __cdecl IwObject::Dump(char *)const " (?Dump@IwObject@@UEBAXPEAD@Z)
release\legereModeler.exe : fatal error LNK1120: 2 unresolved externals
jom: E:\sandbox\build-legereModeler-Desktop_Qt_5_8_0_MSVC2015_64bit-Release\Makefile.Release [release\legereModeler.exe] Error 1120
jom: E:\sandbox\build-legereModeler-Desktop_Qt_5_8_0_MSVC2015_64bit-Release\Makefile [release] Error 2
14:58:30: The process "C:\Qt\Qt5.8.0\Tools\QtCreator\bin\jom.exe" exited with code 2.

My *.pro file:

QT       += core gui

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

TARGET = legereModeler
TEMPLATE = app
DEFINES += QT_DEPRECATED_WARNINGS



SOURCES += main.cpp\
    control/surfacesmoother.cpp \
    display/mainwindow.cpp \
    handlers/mainwindowhandlers.cpp \
    model/fakedata.cpp \
    utils/coordinatesmanager.cpp

HEADERS += control/surfacesmoother.h \
    display/mainwindow.h \
    handlers/mainwindowhandlers.h \
    model/fakedata.h \
    utils/coordinatesmanager.h \
    GeneratedFiles/ui_mainwindow.h

FORMS    += mainwindow.ui

LIBS += -L$$PWD/../SMS/ -lNLib
#LIBS += -LC:\sandbox\SMS -lNLib
#LIBS += -L$$PWD/../SMS/ -lNLibd

LIBS += -L$$PWD/../SMS/ -lNMTLib
#LIBS += -LC:\sandbox\SMS -lNMTLib
#LIBS += -L$$PWD/../SMS/ -lNMTLibd

INCLUDEPATH += $$PWD/../SMS
DEPENDPATH += $$PWD/../SMS

SGaist

Hi,

Do you mean you are building your Qt project with Visual Studio successfully and only modify the source charset option ?

RingAndReed

@SGaist Yes, that's right.

SGaist

Then you should be able to do that through QMAKE_CXXFLAGS

RingAndReed

@SGaist said in Can't build using 3rd party libraries:

QMAKE_CXXFLAGS

Eeeeg, looks really cool (just looked it up) .... but I'm a Qt newbie ..... I was hoping that importing the *.lib and *.dll files should "just make it work". (As it does in MSVS.)

So I found this: http://doc.qt.io/qt-5/qmake-variable-reference.html#qmake-cxxflags but I haven't clue 1 where to start learning to use them..... could you point me in the right direction?

Thanks!

SGaist

Add it to your .pro file and then grab from Visual Studio the switch used to select the character.

QMAKE_CXXFLAGS += whatever_you_found