Hi,
i was compiling ncbi toolkit, in the file ncbimsg.c  gave a compile-time 
error as <sys/types.h> does not
include definitions for fd_set . I included the  header file <sys/types.h>, 
and still give the compilation error as

" 'fd_set' undeclared (  first use in this function )"

Need help in fixing this bug.
Thankx in advance.

-Mahesh.

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