[Solved]Linking to some functions of windows sockets api

swhweng

Hello,
I have a Qt project with libmodbus in it.
On Linux it compiles and links ok , but on Windows there are linking errors that I try to resolve and ask here perhaps somebody
get the same problem:
I defined
@
#define WINVER = 0x0501@

There is a C code that uses some functions for tcp/ip communication
I included: <Ws2tcpip.h> <winsock.h><winsock2.h><w32api.h><winnetwk.h><ws2spi.h><wtsapi32.h>
also
and also added to Qt .pro file next library
@win32:LIBS += -lsetupapi
-Ws_2_32.lib@

The compiler is mingw32

I get next linking errors:

./release\modbus-tcp.o:modbus-tcp.c:(.text+0x128): undefined reference to setsockopt@20' ./release\modbus-tcp.o:modbus-tcp.c:(.text+0x160): undefined reference to setsockopt@20'
./release\modbus-tcp.o:modbus-tcp.c:(.text+0x1b7): undefined reference to getaddrinfo@16' ./release\modbus-tcp.o:modbus-tcp.c:(.text+0x1ec): undefined reference to socket@12'
./release\modbus-tcp.o:modbus-tcp.c:(.text+0x214): undefined reference to connect@12' ./release\modbus-tcp.o:modbus-tcp.c:(.text+0x22c): undefined reference to freeaddrinfo@4'
./release\modbus-tcp.o:modbus-tcp.c:(.text+0x244): undefined reference to closesocket@4' ./release\modbus-tcp.o:modbus-tcp.c:(.text+0x28b): undefined reference to socket@12'
./release\modbus-tcp.o:modbus-tcp.c:(.text+0x2b9): undefined reference to htons@4' ./release\modbus-tcp.o:modbus-tcp.c:(.text+0x2c6): undefined reference to inet_addr@4'
./release\modbus-tcp.o:modbus-tcp.c:(.text+0x2e4): undefined reference to connect@12' ./release\modbus-tcp.o:modbus-tcp.c:(.text+0x314): undefined reference to closesocket@4'
./release\modbus-tcp.o:modbus-tcp.c:(.text+0x5e0): undefined reference to select@20' ./release\modbus-tcp.o:modbus-tcp.c:(.text+0x673): undefined reference to accept@12'
./release\modbus-tcp.o:modbus-tcp.c:(.text+0x6a6): undefined reference to closesocket@4' ./release\modbus-tcp.o:modbus-tcp.c:(.text+0x6de): undefined reference to accept@12'
./release\modbus-tcp.o:modbus-tcp.c:(.text+0x707): undefined reference to inet_ntoa@4' ./release\modbus-tcp.o:modbus-tcp.c:(.text+0x72f): undefined reference to closesocket@4'
./release\modbus-tcp.o:modbus-tcp.c:(.text+0x7b0): undefined reference to getaddrinfo@16' ./release\modbus-tcp.o:modbus-tcp.c:(.text+0x813): undefined reference to setsockopt@20'
./release\modbus-tcp.o:modbus-tcp.c:(.text+0x822): undefined reference to closesocket@4' ./release\modbus-tcp.o:modbus-tcp.c:(.text+0x855): undefined reference to socket@12'
./release\modbus-tcp.o:modbus-tcp.c:(.text+0x88e): undefined reference to bind@12' ./release\modbus-tcp.o:modbus-tcp.c:(.text+0x89d): undefined reference to closesocket@4'
./release\modbus-tcp.o:modbus-tcp.c:(.text+0x8cb): undefined reference to listen@8' ./release\modbus-tcp.o:modbus-tcp.c:(.text+0x8dd): undefined reference to freeaddrinfo@4'
./release\modbus-tcp.o:modbus-tcp.c:(.text+0x907): undefined reference to freeaddrinfo@4' ./release\modbus-tcp.o:modbus-tcp.c:(.text+0x918): undefined reference to closesocket@4'
./release\modbus-tcp.o:modbus-tcp.c:(.text+0x966): undefined reference to socket@12' ./release\modbus-tcp.o:modbus-tcp.c:(.text+0x9a2): undefined reference to setsockopt@20'
./release\modbus-tcp.o:modbus-tcp.c:(.text+0x9ca): undefined reference to htons@4' ./release\modbus-tcp.o:modbus-tcp.c:(.text+0x9ea): undefined reference to bind@12'
./release\modbus-tcp.o:modbus-tcp.c:(.text+0x9ff): undefined reference to listen@8' ./release\modbus-tcp.o:modbus-tcp.c:(.text+0xa18): undefined reference to closesocket@4'
./release\modbus-tcp.o:modbus-tcp.c:(.text+0xa57): undefined reference to recv@16' ./release\modbus-tcp.o:modbus-tcp.c:(.text+0xa9e): undefined reference to recv@16'
./release\modbus-tcp.o:modbus-tcp.c:(.text+0xac1): undefined reference to shutdown@8' ./release\modbus-tcp.o:modbus-tcp.c:(.text+0xacf): undefined reference to closesocket@4'
./release\modbus-tcp.o:modbus-tcp.c:(.text+0xb92): undefined reference to `send@16'
It seems mingw could not link to windows socket functions that are in the list.
What header to include, what library to add to .pro file so as the linking will succeed?
Thank you very much
Awaiting for your help.

giesbert

mingw can't link .lib files.
you should try :

@
win32:LIBS += -lsetupapi
-lWs_2_32
@

goetz

Also, please not that the lib is named "ws2_32", so you have to add to your .pro file:

@
LIBS += -lws2_32
@

swhweng

yes,
there should be added -lws2_32 and not -Ws_2_32.lib to project file LIBS section.
Thank you. It links. Solved!