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[libpng16] Only define usleep() in gregbook/rpng2-x.c if not already defined.

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Glenn Randers-Pehrson
2014-09-14 14:53:09 -05:00
parent 3fe1616c45
commit e4489f1db2
3 changed files with 9 additions and 3 deletions
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8
contrib/gregbook/rpng2-x.c
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@@ -103,9 +103,6 @@
#define RESNAME "rpng2" /* our X resource application name */
#define RESCLASS "Rpng" /* our X resource class name */
/* This is temporary until the code is rewritten to use nanosleep(). */
#define usleep(x) sleep(((x)+499999)/1000000)
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
@@ -118,6 +115,11 @@
#include <X11/Xos.h>
#include <X11/keysym.h> /* defines XK_* macros */
/* This is temporary until the code is rewritten to use nanosleep(). */
#ifndef usleep
# define usleep(x) sleep(((x)+499999)/1000000)
#endif
#ifdef VMS
# include <unistd.h>
#endif