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Bug#335434: SEMVMX is the lesser evil

block 335434 by 336577
block 335435 by 336577

Unfortunately, sysconf(_SC_SEM_VALUE_MAX) is currently unimplemented.

We could use semctl(..., SEM_INFO, arg) and inspect arg.__buf->semvmx,
but this is as unportable as SEMVMX -- semun.__buf is Linux-specific
-- and even less elegant -- thanks to POSIX.1-2001, we'd have to
include our own definition of union semun.

In short, let's fix this in linux-kernel-headers (Bug#336577).



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