Avoid constructing a library name with variables without
proper escaping when SHLIBNAME is '$LIBNAME'

Found by: philip

* SConstruct
  Handle special case that should have been caught by scons.

git-svn-id: https://svn.apache.org/repos/asf/serf/trunk@1727295 13f79535-47bb-0310-9956-ffa450edef68
1 file changed