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[Bug libc/16611] New: Inaccurate assumptions about sendmmsg availability


https://sourceware.org/bugzilla/show_bug.cgi?id=16611

            Bug ID: 16611
           Summary: Inaccurate assumptions about sendmmsg availability
           Product: glibc
           Version: 2.19
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
          Assignee: unassigned at sourceware dot org
          Reporter: jsm28 at gcc dot gnu.org
                CC: drepper.fsp at gmail dot com

Similar to bug 16609 about accept4 and bug 16610 about recvmmsg, glibc's
definition of __ASSUME_SENDMMSG is also inaccurate.  It is defined for 2.6.39
and above, but actually sendmmsg was only added in 3.0, or 3.1 and 3.2 for some
architectures (3.3 in the case of the syscall on MicroBlaze, which had the
socketcall support from 3.0).

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