egcs configure with Solaris/Intel

[Jeffrey A Law]

  In message < x71zzr6qca.fsf@4b.org >you write:
  > Any reason why configure isn't choosing `config/mh-solaris' over
  > `config/mh-sysv4' ?  It probably should.
I don't think so.

mh-solaris assumes that the target defaults to stabs debug symbols
(true for sparc-solaris).

However, x86-solaris defaults to dwarf debug symbols, which needs
some special handling found in mh-sysv4.

jeff