From 9606a31fbff78592352bcccf667ab0eb7a26ef5a Mon Sep 17 00:00:00 2001
From: fangxinyong <fangxinyong@xiaomi.com>
Date: Tue, 29 Aug 2023 19:03:51 +0800
Subject: [PATCH] ltp: fix build error

VELAPLATFO-8233

ltp/testcases/open_posix_testsuite/conformance/interfaces/pthread_sigmask/18-1.c:171: error: "NSIG" redefined [-Werror]
  171 | #define NSIG (sizeof(signals)/sizeof(int))
In file included from /home/work/ssd1/workspace/MiRTOS-CI/nuttx/include/pthread.h:35,
                 from ltp/testcases/open_posix_testsuite/conformance/interfaces/pthread_sigmask/18-1.c:31:
/home/work/ssd1/workspace/MiRTOS-CI/nuttx/include/signal.h:53: note: this is the location of the previous definition
   53 | #define NSIG            _NSIG           /* _NSIG variant commonly used */

Change-Id: I5a7d695612dd8f17ad735a369a9b904ee71f70ee
Signed-off-by: fangxinyong <fangxinyong@xiaomi.com>

diff --git a/testcases/open_posix_testsuite/conformance/interfaces/pthread_sigmask/18-1.c b/testcases/open_posix_testsuite/conformance/interfaces/pthread_sigmask/18-1.c
index 0617210bf..dda0c3a09 100644
--- a/testcases/open_posix_testsuite/conformance/interfaces/pthread_sigmask/18-1.c
+++ b/testcases/open_posix_testsuite/conformance/interfaces/pthread_sigmask/18-1.c
@@ -168,6 +168,7 @@ static void *test(void *arg LTP_ATTRIBUTE_UNUSED)
 	sigset_t set;
 	int i, j = 0;
 	int signals[] = { SIGBUS, SIGKILL, SIGABRT, SIGCHLD, SIGHUP };
+#undef NSIG
 #define NSIG (sizeof(signals)/sizeof(int))
 	int operation[] = { SIG_SETMASK, SIG_BLOCK, SIG_UNBLOCK };
 
-- 
2.45.1