mainline bootstrap failure in bitmap.c on sparcv9-sun-solaris2.8

[Joern Rennecke]

>> You suddenly have a HOST_BITS_PER_WIDE_INT > 64?
>> (Note, not equal to 64, it's a strict greater than test).
>
>No, it is 64 on that platform. This also happens on sparc-*-linux-gnu
>where it is 32.

Well, obviously something in or used by cpplib gets miscompiled.

Do my two libcall related patches from yesterday make any difference
on this?

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