[Bug other/61257] configure should check if sys/sdt.h is usable, not just checking the existance of the header

[egallager at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61257

Eric Gallager <egallager at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |tromey at gcc dot gnu.org

--- Comment #5 from Eric Gallager <egallager at gcc dot gnu.org> ---
svn blame says Tom Tromey added the original check for <sys/sdt.h>; cc-ing him