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Question on build flags for glibc...


I am attempting to understand the locking wrt the defines located
in nptl/sysdeps/pthread/bits/libc-lock.h as well as a few other
places. I am interested in the '-D_LIBC' which appears to only be
used for generating of system call headers and such. It does not
appear to be used anywhere else. Could someone explain the exact
usage/behavior that '-D_LIBC' is supposed to bring about? Thanks.

-Steve


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