RE: [Mingw-users] undefined reference to `WSASocketA@24'

[Wu Y. <ad...@ne...>]

When do the .lib files come from? I suppose you should try removing them 
all and replace "x.lib" with "-lx" at the end.

MinGW does not ship with a libwpcap.a, but the download page has a 
Cygwin-compatible libwpcap.a that is compatible with MinGW. I have used it 
personally. But this seems not quite relevant. I doubt that something in 
"ws2_32.lib" (MinGW has not such a thing) had some bad effects.

Best regards,

Yongwei





"Hughes, John" <Joh...@at...>

 
        To:     <min...@li...>
        CC: 
        Subject:        RE: [Mingw-users] undefined reference to `WSASocketA@24'

I still get the same error.  I have:

$(DLLWRAP) -o $(DLL_NAME) -v \
                                 $(DLL_OBJS) --def (DLL_DEF) $(DLL_LDLIBS) 
$(DLL_WINLIBS)
--lws2_32 


The output with verbose is:


dllwrap -o jpcap.dll -v \
                 Jpcap.o Jpcap_ipaddr.o JpcapSender.o JpcapWriter.o 
packet_arp.o
packet_datalink.o packet_icmp.o packet_ip.o packet_ipv6.o packet_tcp.o
packet_udp.o --def (DLL_DEF)
D:\eclipse\workspace\Jpcap_dll\wpdpack\lib\wpcap.lib
D:\eclipse\workspace\Jpcap_dll\lib\kernel32.lib
D:\eclipse\workspace\Jpcap_dll\lib\ws2_32.lib             --lws2_32 
Reading specs from c:/minGW/bin/../lib/gcc/mingw32/3.4.2/specs
Configured with: ../gcc/configure --with-gcc --with-gnu-ld --with-gnu-as
--host=mingw32 --target=mingw32 --prefix=/mingw --enable-threads
--disable-nls --enable-languages=c,c++,f77,ada,objc,java
--disable-win32-registry --disable-shared --enable-sjlj-exceptions
--enable-libgcj --disable-java-awt --without-x --enable-java-gc=boehm
--disable-libgcj-debug --enable-interpreter
--enable-hash-synchronization --enable-libstdcxx-debug
Thread model: win32
gcc version 3.4.2 (mingw-special)
 c:/minGW/bin/../libexec/gcc/mingw32/3.4.2/collect2.exe --dll -Bdynamic
-e _DllMainCRTStartup@12 -o jpcap.dll
c:/minGW/bin/../lib/gcc/mingw32/3.4.2/../../../dllcrt2.o
c:/minGW/bin/../lib/gcc/mingw32/3.4.2/crtbegin.o
-Lc:/minGW/bin/../lib/gcc/mingw32/3.4.2 -Lc:/minGW/bin/../lib/gcc
-Lc:/minGW/bin/../lib/gcc/mingw32/3.4.2/../../../../mingw32/lib
-Lc:/minGW/bin/../lib/gcc/mingw32/3.4.2/../../.. --base-file
c:\temp/cca02820.base -e _DllMainCRTStartup@12 --image-base 0x6D3C0000
Jpcap.o Jpcap_ipaddr.o JpcapSender.o JpcapWriter.o packet_arp.o
packet_datalink.o packet_icmp.o packet_ip.o packet_ipv6.o packet_tcp.o
packet_udp.o D:\eclipse\workspace\Jpcap_dll\wpdpack\lib\wpcap.lib
D:\eclipse\workspace\Jpcap_dll\lib\kernel32.lib
D:\eclipse\workspace\Jpcap_dll\lib\ws2_32.lib -lmingw32 -lgcc -lmoldname
-lmingwex -lmsvcrt -luser32 -lkernel32 -ladvapi32 -lshell32 -lmingw32
-lgcc -lmoldname -lmingwex -lmsvcrt
c:/minGW/bin/../lib/gcc/mingw32/3.4.2/crtend.o
JpcapSender.o(.text+0x129): In function
`Java_jpcap_JpcapSender_openRawSocket':
D:/eclipse/workspace/Jpcap_dll/JpcapSender.c:90: undefined reference to
`WSASocketA@24'
collect2: ld returned 1 exit status
DLLTOOL name    : dlltool
DLLTOOL options :  -v --dllname jpcap.dll
--exclude-symbol=DllMainCRTStartup@12 --def (DLL_DEF)
DRIVER name     : gcc
DRIVER options  : -mdll -o jpcap.dll -Wl,-e,_DllMainCRTStartup@12
-Wl,--image-base,0x6D3C0000 -v Jpcap.o Jpcap_ipaddr.o JpcapSender.o
JpcapWriter.o packet_arp.o packet_datalink.o packet_icmp.o packet_ip.o
packet_ipv6.o packet_tcp.o packet_udp.o
D:\eclipse\workspace\Jpcap_dll\wpdpack\lib\wpcap.lib
D:\eclipse\workspace\Jpcap_dll\lib\kernel32.lib
D:\eclipse\workspace\Jpcap_dll\lib\ws2_32.lib --lws2_32
gcc -Wl,--base-file,c:\temp/cca02820.base -mdll -o jpcap.dll
-Wl,-e,_DllMainCRTStartup@12 -Wl,--image-base,0x6D3C0000 -v Jpcap.o
Jpcap_ipaddr.o JpcapSender.o JpcapWriter.o packet_arp.o
packet_datalink.o packet_icmp.o packet_ip.o packet_ipv6.o packet_tcp.o
packet_udp.o D:\eclipse\workspace\Jpcap_dll\wpdpack\lib\wpcap.lib
D:\eclipse\workspace\Jpcap_dll\lib\kernel32.lib
D:\eclipse\workspace\Jpcap_dll\lib\ws2_32.lib --lws2_32
dllwrap: gcc exited with status 1
dllwrap: Deleting temporary base file c:\temp/cca02820.base
mingw32-make: *** [jpcap.dll] Error 1

 

> -----Original Message-----
> From: Wu Yongwei [mailto:ad...@ne...] 
> Sent: 04 February 2005 10:40
> To: min...@li...
> Subject: Re: [Mingw-users] undefined reference to `WSASocketA@24'
> 
> Try putting "-lws2_32" at the *end* of your command line.