vchoi_fork

[svn-r3060] 
Purpose:
    Bugfix
Description:
    The gcc linker couldn't resolve any socket routine symbols
    if the Stream VFD was configure.
Solution:
    Add the socket library to the LIBS makefile variable not just
    when compiling with the native cc compiler
    but also if using GNU tools (such as on Solaris x86 systems).
Platforms tested:
    SunOS 5.5 with GNU cc (hatteras),
    SunOS 5.6 with native cc (thor.sistec.kp.dlr.de)