Semaphores (sys/sem.h) in sane-backends

From: Henning Meier-Geinitz (
Date: Mon Jun 04 2001 - 11:49:59 PDT

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    backend/snapscan-usb.c uses semaphores. Is there any system (besides
    OS/2) that doesn't support them? In this case we would need to write
    some #ifdef stuff. At least Linux, FreeBSD, AIX, Solaris and Irix
    seem to work.


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