target/7156: Should not attempt to build 32/64 bi-arch compiler on sparc-*-solaris2.[789] if unsupported, bootstrap will fail

[davem@gcc.gnu.org]

Synopsis: Should not attempt to build 32/64 bi-arch compiler on sparc-*-solaris2.[789] if unsupported, bootstrap will fail

State-Changed-From-To: open->closed
State-Changed-By: davem
State-Changed-When: Fri Jun 28 08:26:08 2002
State-Changed-Why:
    The build instructions are very precise in telling the user
    that they must "--disable-multilib" on the configure command
    line if their system does not support generation of 64-bit
    binaries.
    
    Several attempts were made close to the 3.1 release to automate this but none of them proved to be reliable and
    do the right thing in cross-compilation scenerios.

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