undefined reference to `__imp_ WSASend / WSARec / WSASocketW

AxelVienna

Hi all,

I am trying to port a Qt widgets project from Linux (where it compiles flawlessly) to Windows (MinGW, installed with Qt installer) where my experience is fairly limited.
I am stuck with the error undefined reference to `_imp WSASend'.
.pro file and compiler output are below.
Help is highly appreciated, thanks in advance.
Brgds
Axel

QT += core gui 
QT += quickcontrols2

greaterThan(QT_MAJOR_VERSION, 4): QT += widgets

CONFIG += c++11
CONFIG += c++17

WIN64 {
       INCLUDEPATH += ../../../Win64/include
       LIBS += -L../../../Win64/libs -lcurl
       LIBS += -lwsock32
#       LIBS += -L../../../Win64/libs -ljsoncpp
#       LIBS += -L$$PWD../../../Win64/libs/jsoncpp.lib
#       LIBS += -L C:/Users/User/Documents/Win64/libs -ljsoncpp
#       LIBS += -lstdc++fs
#       LIBS += -L ../../../Win64/libs -lboost_date_time
#       LIBS += -L ../../../Win64/libs -lboost_system
       LIBS += -L../../../Win64/libs -lQXlsx
       CONFIG += static
       SOURCES += \
                ../../../Win64/src/json/json_reader.cpp \
                ../../../Win64/src/json/json_value.cpp \
                ../../../Win64/src/json/json_writer.cpp
       HEADERS += \
                ../../../Win64/src/json/json_tool.h \
                ../../../Win64/src/json/json_valueiterator.inl

}else{

LIBS += -lcurl
LIBS += -L/usr/local/lib64 -ljsoncpp
LIBS += -lstdc++fs
LIBS += -lboost_date_time
LIBS += -lboost_system
LIBS += -L/usr/local/lib64/QXlsx -lQXlsx
INCLUDEPATH += /usr/include/glibc-2.0
INCLUDEPATH += /usr/local/include
}
# Compile defs for WhiteAPI class
DEFINES -= WHITEAPI
DEFINES += WHITEGUI

RESOURCES +=resources.qrc \
    ../../../Frontend/BreezeStyleSheets-master/breeze.qrc

# You can make your code fail to compile if it uses deprecated APIs.
# In order to do so, uncomment the following line.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0

SOURCES += \
    ../WhiteEngine/whiteapi.cpp \
    ../WhiteEngine/whitedata.cpp \
    ../WhiteEngine/whitefile.cpp \
    ../WhiteEngine/whitejson.cpp \
    ../WhiteEngine/whitelog.cpp \
    ../WhiteEngine/whiterequest.cpp \
    ../WhiteEngine/whitestatus.cpp \
    ../WhiteEngine/whitetimer.cpp \
    ../WhiteEngine/whitetools.cpp \
    ../WhiteEngine/whitetranslator.cpp \
    ../WhiteEngine/apikey.cpp \
    apiwizard.cpp \
    detailam.cpp \
    detailar.cpp \
    detailrender.cpp \
    importfile.cpp \
    main.cpp \
    models.cpp \
    notyfier.cpp \
    whitebar.cpp \
    whitebox.cpp \
    whiteclient.cpp \
    whiteconfig.cpp \
    whitegui.cpp \
    whitelistpopup.cpp \
    whitelogin.cpp \
    whitetimerpopup.cpp \
    whiteview.cpp

HEADERS += \
    ../WhiteEngine/WhiteDefs.h \
    ../WhiteEngine/WhiteIncludes.h \
    ../WhiteEngine/apikey.h \
    ../WhiteEngine/whiteapi.h \
    ../WhiteEngine/whitedata.h \
    ../WhiteEngine/whitefile.h \
    ../WhiteEngine/whitejson.h \
    ../WhiteEngine/whitelog.h \
    ../WhiteEngine/whiterequest.h \
    ../WhiteEngine/whitestatus.h \
    ../WhiteEngine/whitetimer.h \
    ../WhiteEngine/whitetools.h \
    ../WhiteEngine/whitetranslator.h \
    apiwizard.h \
    detailam.h \
    detailar.h \
    detailrender.h \
    importfile.h \
    models.h \
    notyfier.h \
    whitebar.h \
    whitebox.h \
    whiteclient.h \
    whiteconfig.h \
    whitegui.h \
    whitelistpopup.h \
    whitelogin.h \
    whitetimerpopup.h \
    whiteview.h

FORMS += \
    apiwizard.ui \
    detailam.ui \
    detailar.ui \
    detailrender.ui \
    importfile.ui \
    models.ui \
    whiteconfig.ui \
    whitegui.ui \
    whitelistpopup.ui \
    whitelogin.ui \
    whitetimerpopup.ui \
    whiteview.ui

INCLUDEPATH += ../WhiteEngine

# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target


FORMS += \
    APIKeyGUI.ui

INCLUDEPATH += ../WhiteEngine

# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target

DISTFILES +=


FORMS += \
    APIKeyGUI.ui \
    models.ui

INCLUDEPATH += ../WhiteEngine

# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target


FORMS += \
    APIKeyGUI.ui

INCLUDEPATH += ../WhiteEngine

# Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target

DISTFILES +=

And here is the compiler output:

g++ -Wl,-s -Wl,-subsystem,windows -mthreads -o release\WhiteGUI.exe @object_script.WhiteGUI.Release  -L..\..\..\Win64\libs -lcurl -lwsock32 -lQXlsx C:\Qt\6.1.2\mingw81_64\lib\libQt6Widgets.a C:\Qt\6.1.2\mingw81_64\lib\libQt6QuickControls2.a C:\Qt\6.1.2\mingw81_64\lib\libQt6Quick.a C:\Qt\6.1.2\mingw81_64\lib\libQt6OpenGL.a C:\Qt\6.1.2\mingw81_64\lib\libQt6Gui.a C:\Qt\6.1.2\mingw81_64\lib\libQt6QmlModels.a C:\Qt\6.1.2\mingw81_64\lib\libQt6Qml.a C:\Qt\6.1.2\mingw81_64\lib\libQt6Network.a C:\Qt\6.1.2\mingw81_64\lib\libQt6Core.a -lmingw32 C:\Qt\6.1.2\mingw81_64\lib\libQt6EntryPoint.a -lshell32  
release/whitetools.o:whitetools.cpp:(.text+0x9131): undefined reference to `__imp_WSASocketW'

JonB

@AxelVienna
Hi. I certainly did not mean to remove linking with wsock! That would make it worse :) Rather it was just my observation that these functions are supposed to be provided (and needed) for Windows sockets, but something is not found/has gone wrong in trying to link with them, as a pointer to you for what to investigate :)

I have never done MinGW, nor Qt on Windows, so sadly I'm not the right person to ask. However, I think you should start by Googling mingw wsock32 or mingw winsock. I think you'll see there are quite a lot links to get you into whatever is necessary for Windows sockets with MinGW. Be careful, though, as some of them are real old, like 2004! I have a feeling you'll want something like libws2_32.a. Maybe nowadays it's 64-bit and you done want 32, I don't know. You could maybe just give a go at replacing lwsock32 by -lws2_32, but don't blame me if this is nonsense :)

Alternatively, your -lwsock32 is itself fine after all, and there is a further problem. Go back to using that as you started out, but can you copy & paste the actual text of whatever errors you get exactly for us to look at?

JonB

@AxelVienna
I can only offer a hint as to what I think is the issue. Please don't read too much into what I suggest, I may be mistaken, but it might point you in the right direction.

Your "undefined reference to __imp_ WSASend / WSARec / WSASocketW" all refer to Windows sockets functions, the -lwsock32. That bit I'm sure of!

Then I have a feeling that the __imp_... prefix is what one sees when compiling/linking against MSVC .lib files. But you are using MinGW. And I don't think you can mix MSVC libraries with MinGW ones. Are you sure that what you have for the -lwsock32 is good for MinGW linking?

AxelVienna

@JonB Hi Jon, thanks for your reply. When I comment out the link command to wsock32, I get even more errors of the same kind. So you are probably right. I got the hint to use this library from another forum. However, in my mingw path there isn’t anything similar to wsock32.dll. Do you have any idea where to get it? Or how to configure an MSVC compile kit?

JonB

@AxelVienna
Hi. I certainly did not mean to remove linking with wsock! That would make it worse :) Rather it was just my observation that these functions are supposed to be provided (and needed) for Windows sockets, but something is not found/has gone wrong in trying to link with them, as a pointer to you for what to investigate :)

I have never done MinGW, nor Qt on Windows, so sadly I'm not the right person to ask. However, I think you should start by Googling mingw wsock32 or mingw winsock. I think you'll see there are quite a lot links to get you into whatever is necessary for Windows sockets with MinGW. Be careful, though, as some of them are real old, like 2004! I have a feeling you'll want something like libws2_32.a. Maybe nowadays it's 64-bit and you done want 32, I don't know. You could maybe just give a go at replacing lwsock32 by -lws2_32, but don't blame me if this is nonsense :)

Alternatively, your -lwsock32 is itself fine after all, and there is a further problem. Go back to using that as you started out, but can you copy & paste the actual text of whatever errors you get exactly for us to look at?

AxelVienna

@JonB said Hi Jon, thank you so much! -lws2_32 did the trick and the whole show is now compiling and running. You get wiser by the day.