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Permission to use, copy, modify, distribute, and sell this software and its

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documentation for any purpose is hereby granted without fee, provided that

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the above copyright notice appear in all copies and that both that

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documentation.

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The above copyright notice and this permission notice shall be included in

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all copies or substantial portions of the Software.

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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN

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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN

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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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Except as contained in this notice, the name of The Open Group shall not be

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used in advertising or otherwise to promote the sale, use or other dealings

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in this Software without prior written authorization from The Open Group.

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* The X Window System is a Trademark of The Open Group.

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/* This is a collection of things to try and minimize system dependencies

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* in a "significant" number of source files.

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#ifndef _XOS_H_

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# define _XOS_H_

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# include <X11/Xosdefs.h>

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* Get major data types (esp. caddr_t)

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# include <sys/types.h>

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# if defined(__SCO__) || defined(__UNIXWARE__)

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# include <stdint.h>

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# endif

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* Just about everyone needs the strings routines. We provide both forms here,

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* index/rindex and strchr/strrchr, so any systems that don't provide them all

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* need to have #defines here.

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* These macros are defined this way, rather than, e.g.:

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* #defined index(s,c) strchr(s,c)

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* because someone might be using them as function pointers, and such

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* a change would break compatibility for anyone who's relying on them

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* being the way they currently are. So we're stuck with them this way,

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* which can be really inconvenient. :-(

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# include <string.h>

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# if defined(__SCO__) || defined(__UNIXWARE__) || defined(__sun) || defined(__CYGWIN__) || defined(_AIX) || defined(__APPLE__)

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# include <strings.h>

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# else

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# ifndef index

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# define index(s,c) (strchr((s),(c)))

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# endif

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# ifndef rindex

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# define rindex(s,c) (strrchr((s),(c)))

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# endif

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# endif

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* Get open(2) constants

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# if defined(X_NOT_POSIX)

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# include <fcntl.h>

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# if defined(USL) || defined(__i386__) && (defined(SYSV) || defined(SVR4))

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# include <unistd.h>

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# endif

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# ifdef WIN32

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# include <X11/Xw32defs.h>

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# else

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# include <sys/file.h>

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# endif

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# else /* X_NOT_POSIX */

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# include <fcntl.h>

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# include <unistd.h>

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# endif /* X_NOT_POSIX else */

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* Get struct timeval and struct tm

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# if defined(_POSIX_SOURCE) && defined(SVR4)

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/* need to omit _POSIX_SOURCE in order to get what we want in SVR4 */

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# undef _POSIX_SOURCE

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# include <sys/time.h>

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# define _POSIX_SOURCE

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# elif defined(WIN32)

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# include <time.h>

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# if !defined(_WINSOCKAPI_) && !defined(_WILLWINSOCK_) && !defined(_TIMEVAL_DEFINED) && !defined(_STRUCT_TIMEVAL)

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struct timeval {

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long tv_sec; /* seconds */

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long tv_usec; /* and microseconds */

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};

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# define _TIMEVAL_DEFINED

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# endif

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# include <sys/timeb.h>

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# define gettimeofday(t) \

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{ \

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struct _timeb _gtodtmp; \

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_ftime (&_gtodtmp); \

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(t)->tv_sec = _gtodtmp.time; \

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(t)->tv_usec = _gtodtmp.millitm * 1000; \

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}

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# else

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# include <sys/time.h>

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# include <time.h>

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# endif /* defined(_POSIX_SOURCE) && defined(SVR4) */

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/* define X_GETTIMEOFDAY macro, a portable gettimeofday() */

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# if defined(_XOPEN_XPG4) || defined(_XOPEN_UNIX) /* _XOPEN_UNIX is XPG4.2 */

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# define X_GETTIMEOFDAY(t) gettimeofday(t, (struct timezone*)0)

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# else

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# if defined(SVR4) || defined(__SVR4) || defined(WIN32)

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# define X_GETTIMEOFDAY(t) gettimeofday(t)

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# else

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# define X_GETTIMEOFDAY(t) gettimeofday(t, (struct timezone*)0)

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# endif

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# endif /* XPG4 else */

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# ifdef __GNU__

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# define PATH_MAX 4096

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# define MAXPATHLEN 4096

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# define OPEN_MAX 256 /* We define a reasonable limit. */

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# endif

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/* use POSIX name for signal */

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# if defined(X_NOT_POSIX) && defined(SYSV) && !defined(SIGCHLD)

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# define SIGCHLD SIGCLD

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# endif

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# include <X11/Xarch.h>

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#endif /* _XOS_H_ */

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