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https://github.com/MidnightCommander/mc
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37 lines
1.1 KiB
C
37 lines
1.1 KiB
C
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/** \file unixcompat.h
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* \brief Header: collects differences between the various Unix
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*
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* This header file collects differences between the various Unix
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* variants that are supported by the Midnight Commander and provides
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* replacement routines if they are not natively available.
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* The major/minor macros are not specified in SUSv3, so we can only hope
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* they are provided by the operating system or emulate it.
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*/
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#ifndef MC_UNIXCOMPAT_H
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#define MC_UNIXCOMPAT_H
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#include <sys/types.h> /* BSD */
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#ifdef HAVE_SYS_MKDEV_H
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# include <sys/mkdev.h> /* Solaris 9 */
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#endif
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#if defined(_AIX) && defined(HAVE_SYS_SYSMACROS_H)
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# include <sys/sysmacros.h> /* AIX */
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#endif
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#ifndef major
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# warning major() is undefined. Device numbers will not be shown correctly.
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# define major(devnum) (((devnum) >> 8) & 0xff)
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#endif
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#ifndef minor
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# warning minor() is undefined. Device numbers will not be shown correctly.
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# define minor(devnum) (((devnum) & 0xff))
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#endif
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#ifndef makedev
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# warning makedev() is undefined. Device numbers will not be shown correctly.
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# define makedev(major,minor) ((((major) & 0xff) << 8) | ((minor) & 0xff))
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#endif
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#endif
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