[newlib-cygwin] sched.h: add CPU_EQUAL() for better compatibility with Linux

[newlib-cygwin] sched.h: add CPU_EQUAL() for better compatibility with Linux

[Sebastian Huber]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=4ac3ee88c7fbb3ceded25c2f341351f2776f316e

commit 4ac3ee88c7fbb3ceded25c2f341351f2776f316e
Author: Konstantin Belousov <kib@FreeBSD.org>
Date:   Sat Oct 30 10:36:24 2021 +0300

    sched.h: add CPU_EQUAL() for better compatibility with Linux
    
    Reviewed by:    jhb
    Sponsored by:   The FreeBSD Foundation
    MFC after:      1 week
    Differential revision:  https://reviews.freebsd.org/D32901

Diff:
---
 newlib/libc/sys/rtems/include/sys/cpuset.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/newlib/libc/sys/rtems/include/sys/cpuset.h b/newlib/libc/sys/rtems/include/sys/cpuset.h
index 7779f0639..e46090b8a 100644
--- a/newlib/libc/sys/rtems/include/sys/cpuset.h
+++ b/newlib/libc/sys/rtems/include/sys/cpuset.h
@@ -205,7 +205,7 @@ static __inline int CPU_COUNT(const cpu_set_t *set)
 static __inline int CPU_EQUAL_S(size_t setsize, const cpu_set_t *set1,
   const cpu_set_t *set2)
 {
-  return !BIT_CMP(_cpu_set_bits(setsize), set1, set2);
+  return BIT_CMP(_cpu_set_bits(setsize), set1, set2) == 0;
 }
 
 static __inline int CPU_EQUAL(const cpu_set_t *set1, const cpu_set_t *set2)