changed ZSTD_NANOSLEEP_SUPPORT definition

to please `-Wexpansion-to-defined`

programs/platform.h

@@ -181,8 +181,12 @@ static __inline int IS_CONSOLE(FILE* stdStream) {
 
 #ifndef ZSTD_NANOSLEEP_SUPPORT
    /* mandates support of nanosleep() within <time.h> : http://man7.org/linux/man-pages/man2/nanosleep.2.html */
-#  define ZSTD_NANOSLEEP_SUPPORT (defined(__linux__) && (PLATFORM_POSIX_VERSION >= 199309L)) \
+#  if (defined(__linux__) && (PLATFORM_POSIX_VERSION >= 199309L)) \
    || (PLATFORM_POSIX_VERSION >= 200112L)
+#     define ZSTD_NANOSLEEP_SUPPORT 1
+#  else
+#     define ZSTD_NANOSLEEP_SUPPORT 0
+#  endif
 #endif
 
 

programs/util.h

@@ -20,7 +20,7 @@ extern "C" {
 /*-****************************************
 *  Dependencies
 ******************************************/
-#include "platform.h"     /* PLATFORM_POSIX_VERSION */
+#include "platform.h"     /* PLATFORM_POSIX_VERSION, ZSTD_NANOSLEEP_SUPPORT, ZSTD_SETPRIORITY_SUPPORT */
 #include <stdlib.h>       /* malloc */
 #include <stddef.h>       /* size_t, ptrdiff_t */
 #include <stdio.h>        /* fprintf */
@@ -65,7 +65,7 @@ extern "C" {
 #elif PLATFORM_POSIX_VERSION > 0 /* Unix-like operating system */
 #  include <unistd.h>   /* sleep */
 #  define UTIL_sleep(s) sleep(s)
-#  if ZSTD_NANOSLEEP_SUPPORT
+#  if ZSTD_NANOSLEEP_SUPPORT   /* necessarily defined in platform.h */
 #      define UTIL_sleepMilli(milli) { struct timespec t; t.tv_sec=0; t.tv_nsec=milli*1000000ULL; nanosleep(&t, NULL); }
 #  else
 #      define UTIL_sleepMilli(milli) /* disabled */