/usr/lib/X11/config/bsd.cf is in xutils-dev 1:7.7+3ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 | XCOMM platform: $Xorg: bsd.cf,v 1.3 2000/08/17 19:41:47 cpqbld Exp $
XCOMM $XFree86: xc/config/cf/bsd.cf,v 1.2 1998/09/06 04:46:50 dawes Exp $
#ifndef OSName
#define OSName 4.3bsd
#endif
XCOMM operating system: OSName
#ifndef OSMajorVersion
#define OSMajorVersion 4
#endif
#ifndef OSMinorVersion
#define OSMinorVersion 3
#endif
#define BootstrapCFlags -DNOSTDHDRS
#define StandardDefines -DNOSTDHDRS -DCSRG_BASED
#define HasVoidSignalReturn NO
#define HasBsearch NO
#define DirFailPrefix -
#define AvoidNullMakeCommand YES
#define BuildServer NO
#ifdef VaxArchitecture
#define UnalignedReferencesAllowed YES /* if arbitrary deref is okay */
#endif
#if OSMajorVersion >= 4 && OSMinorVersion >= 3
#define SetTtyGroup YES
#endif
#if OSMajorVersion==4 && OSMinorVersion>=2
#define HasUsableFileMmap YES
#endif
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