linking problem

linking problem

[Barry Cassidy]

Hi,
I am trying to compile and link a set of c files using gcc under cygwin..

I need to link the wsock32 library with my files but it doesn't seem to work
because I keep getting errors related to the wsock32 stuff.

Here are the error messages..

/cygdrive/c/WINNT/TEMP/ccRNnj43.o(.text+0x81):hprof_io.c: undefined
reference to `_ntohl@4'
/cygdrive/c/WINNT/TEMP/ccRNnj43.o(.text+0xab):hprof_io.c: undefined
reference to `_ntohs@4'
/cygdrive/c/WINNT/TEMP/ccRNnj43.o(.text+0x304):hprof_io.c: undefined
reference to `_htonl@4'
/cygdrive/c/WINNT/TEMP/ccRNnj43.o(.text+0x338):hprof_io.c: undefined
reference to `_htons@4'
/cygdrive/c/WINNT/TEMP/ccWLDw2Q.o(.text+0x69):hprof_listener.c: undefined
reference to `_recv@16'
/cygdrive/c/WINNT/TEMP/ccWLDw2Q.o(.text+0x119):hprof_listener.c: undefined
reference to `_ntohs@4'
/cygdrive/c/WINNT/TEMP/ccWLDw2Q.o(.text+0x14e):hprof_listener.c: undefined
reference to `_ntohl@4'
/cygdrive/c/WINNT/TEMP/ccyt4TGz.o(.text+0x1502):hprof_setup.c: undefined
reference to `_socket@12'
/cygdrive/c/WINNT/TEMP/ccyt4TGz.o(.text+0x1516):hprof_setup.c: undefined
reference to `_gethostbyname@4'
/cygdrive/c/WINNT/TEMP/ccyt4TGz.o(.text+0x1589):hprof_setup.c: undefined
reference to `_htons@4'
/cygdrive/c/WINNT/TEMP/ccyt4TGz.o(.text+0x15bc):hprof_setup.c: undefined
reference to `_connect@12'
/cygdrive/c/WINNT/TEMP/cc5OMmd1.o(.text+0x22):hprof_md.c: undefined
reference to `_send@16'
/cygdrive/c/WINNT/TEMP/cc5OMmd1.o(.text+0x53):hprof_md.c: undefined
reference to `_timeGetTime@0'
collect2: ld returned 1 exit status


My command line is as follows..

gcc -mno-cygwin -I$JAVA_HOME/include -I$JAVA_HOME/include/win32 -lwsock32
-Wl,--add-stdcall-alias -shared -o bcprofiler.dll file1.c file2.c

Is there something wrong with the way I am using the -l option to link?

Thanks,
Barry

Re: Linking problem

[Jonathan Wakely]

On 27 February 2012 23:18, rebelstar wrote:
>
> Hi,
>
> I am trying to build a piece of code on 64 bit linux machine gcc ( ++
> compiler ) on eclipse IDE
>
> In the linking stage,it throws an error
>
> Invoking: GCC C++ Linker
> g++ -L/home/a0133140/bcpmodel/bcptest/ -o"test"  ./main.o ./wrapper.o
> -lmylib64
> /usr/bin/ld: cannot find -lmylib64
> collect2: ld returned 1 exit status
>
> I have included the library in the workfolder and tried giving full path
> name,absolute path etc..no success..
> ( The name of the library is mylib64.a)

-lmylib64 makes the linker look for libmylib64.so or libmylib64.a, so
your library has the wrong name.

Linking problem

[rebelstar]

Hi,

I am trying to build a piece of code on 64 bit linux machine gcc ( ++
compiler ) on eclipse IDE

In the linking stage,it throws an error

Invoking: GCC C++ Linker
g++ -L/home/a0133140/bcpmodel/bcptest/ -o"test"  ./main.o ./wrapper.o  
-lmylib64
/usr/bin/ld: cannot find -lmylib64
collect2: ld returned 1 exit status

I have included the library in the workfolder and tried giving full path
name,absolute path etc..no success..
( The name of the library is mylib64.a)

Any suggestions?

Thanks.


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linking problem

[m.]

(Not sure if this is the right group to post to.)

I have trouble linking this simple program using gcc 3.3 on Solaris 9.
It links fine with gcc 3.3 on Linux.  What could be the problem?
Thanks.

#include <string>

int main(void) {
        std::string x="a";
        std::string y="b"+x;              // this does not work
        std::string z=std::string("b)"+x; // this works
        return 0;
}

g++ a.cc

The error is:

Undefined                       first referenced
 symbol                             in file
std::basic_string<char, std::char_traits<char>, std::allocator<char> >::replace(__gnu_cxx::__normal_iterator<char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, __gnu_cxx::__normal_iterator<char*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, char const*, char const*)/var/tmp//ccfVrSsO.o
ld: fatal: Symbol referencing errors. No output written to a.out
collect2: ld returned 1 exit status

Linking Problem

[sanal vk]

Hi,

I am getting following errors while linking a library, in which I don't have 
any control.

       Undefined reference to _xstat
       Undefined reference to _fxstat

I am using gcc 2.96 on Red Hat Linux release 7.0 (Kernel 2.2.16-22 on an 
i686). I tried installing glibc-2.2.1 and linking vga library but it didn't 
make any difference.

It will be of great help if you can throw some light on this problem.

Ps. Please send a copy of your reply to my personal id(sanalvk@hotmail.com) 
since I am not a member of this group.

Thanks and Regards,
Sanal Kumar V K


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