linker error => LNK2005: "void * __cdecl process(void *)" (?process@@YAPEAXPEAX@Z) already defined in fconvblas.obj

i m using this command

           mex -O fconvblas.cc -lmwblas -O fconv.cc

and got these errors

   fconv.obj : error LNK2005: "void * __cdecl process(void *)" (?process@@YAPEAXPEAX@Z) already defined in fconvblas.obj 
   fconv.obj : error LNK2005: mexFunction already defined in fconvblas.obj 

Creating library C:\Users\hassan\AppData\Local\Temp\mex_TlKrc0\templib.x and object        C:\Users\hassan\AppData\Local\Temp\mex_TlKrc0\templib.exp 
fconvblas.obj : error LNK2019: unresolved external symbol __imp_pthread_exit referenced in         function "void * __cdecl process(void *)" (?process@@YAPEAXPEAX@Z) 
 fconvblas.obj : error LNK2019: unresolved external symbol __imp_pthread_join referenced in   function mexFunction 
 fconvblas.obj : error LNK2019: unresolved external symbol __imp_pthread_create referenced in function mexFunction 
 fconvblas.mexw64 : fatal error LNK1120: 3 unresolved externals 

C:\PROGRA~1\MATLAB\R2013A\BIN\MEX.PL: Error: Link of 'fconvblas.mexw64' failed.

Answer 1

[hassan mahmood]

still remain 2 errors

   fconv.obj : error LNK2005: "void * __cdecl process(void *)" (?process@@YAPEAXPEAX@Z) already defined in fconvblas.obj 
    fconv.obj : error LNK2005: mexFunction already defined in fconvblas.obj
with the help of this thread

remaining 3 errors errors are removed

 fconvblas.obj : error LNK2019: unresolved external symbol __imp_pthread_exit referenced in function "void * __cdecl process(void *)" (?process@@YAPEAXPEAX@Z) 
 fconvblas.obj : error LNK2019: unresolved external symbol __imp_pthread_join referenced in function mexFunction 
 fconvblas.obj : error LNK2019: unresolved external symbol __imp_pthread_create referenced in function mexFunction 
 fconvblas.mexw64 : fatal error LNK1120: 3 unresolved externals 

http://www.mathworks.com/matlabcentral/answers/107106-error-lnk2019-unresolved-external-symbol-when-compiling-mex

I gave path of library folder, lib file name, header folder location

    mex -O -I"C:\Users\hassan\Desktop\Pthread\include" -lpthreadVC2 -L"C:\Users\hassan\Desktop\Pthread\lib\x64" fconvblas.cc -lmwblas -O fconv.c

Any idea to remove other 2 remaaing errors? what is meant by mexFunction already defined in fconvblas.obj