test if possible

[Roland McGrath]

> make[2]: *** [/home/test/glibc-build/iconvdata/utf16-utf32-z9.os] Error 1
> ../iconv/loop.c: Assembler messages:
> ../iconv/loop.c:332: Error: unknown pseudo-op: `.machine'
> ../iconv/loop.c:333: Error: unknown pseudo-op: `.machine'
> [...]
> make[2]: *** [/home/test/glibc-build/iconvdata/utf8-utf16-z9.os] Error 1
> ../iconv/loop.c: Assembler messages:
> ../iconv/loop.c:332: Error: unknown pseudo-op: `.machine'
> ../iconv/loop.c:333: Error: unknown pseudo-op: `.machine'

The relevant issue there is your assembler (i.e. binutils) version.
Andreas should send changes either to make the code compatible with more
versions, or to add an s390 configure check for the minimum required
assembler version.


Thanks,
Roland