diff --git a/testsuites/unittest/extended/signal/full/signal_test_001.cpp b/testsuites/unittest/extended/signal/full/signal_test_001.cpp
index cc7d2510cdd5e4d49564a9626ce9c642ce6b4a15..71e777bcff94f0c795bcd1777d416d4e2701be97 100644
--- a/testsuites/unittest/extended/signal/full/signal_test_001.cpp
+++ b/testsuites/unittest/extended/signal/full/signal_test_001.cpp
@@ -162,8 +162,8 @@ static int TestCase(void)
             exit(-1);
         }
 
-        printf("1 pending=%d\n", pending.__bits[0]);
-        printf("1 oldmask=%d\n", oldmask.__bits[0]);
+        printf("1 pending=%lu\n", pending.__bits[0]);
+        printf("1 oldmask=%lu\n", oldmask.__bits[0]);
         printf("before raise\n");
         raise(SIGALRM);
         printf("after raise\n");
@@ -172,7 +172,7 @@ static int TestCase(void)
             printf("errline  = %d\n", __LINE__);
             exit(-1);
         }
-        printf("pending=%d,sigismem = %d\n", pending.__bits[0], sigismember(&pending, SIGALRM));
+        printf("pending=%d,sigismem = %lu\n", pending.__bits[0], sigismember(&pending, SIGALRM));
         exit(0);
     }
     sleep(1);
diff --git a/testsuites/unittest/libc/sys/smoke/sys_test_004.cpp b/testsuites/unittest/libc/sys/smoke/sys_test_004.cpp
index a35864445fd65041bb1c2755341ff5b68aa12f63..cd13455d03ef6784739c2d70b4cc16c557cba51e 100644
--- a/testsuites/unittest/libc/sys/smoke/sys_test_004.cpp
+++ b/testsuites/unittest/libc/sys/smoke/sys_test_004.cpp
@@ -39,7 +39,7 @@ static UINT32 TestCase(VOID)
 
     x = nrand48(seed);
     if ((x < 0) || (x > MAX_NRAND48)) {
-        printf("[IN %s][line %d] x = %d\n", __FUNCTION__, __LINE__, x);
+        printf("[IN %s][line %d] x = %ld\n", __FUNCTION__, __LINE__, x);
         goto EXIT;
     }
 
diff --git a/testsuites/unittest/libc/sys/smoke/sys_test_005.cpp b/testsuites/unittest/libc/sys/smoke/sys_test_005.cpp
index ae47e8b461a915e99f5ff142bf9b4e9790d0b16c..d56cf2c3d09b58bda65342b73edd1037469a0d0c 100644
--- a/testsuites/unittest/libc/sys/smoke/sys_test_005.cpp
+++ b/testsuites/unittest/libc/sys/smoke/sys_test_005.cpp
@@ -38,7 +38,7 @@ static UINT32 TestCase(VOID)
 
     x = random();
     if (x > labs(MAX_RANDOM - 1)) {
-        printf("[IN %s][line %d] x = %d\n", __FUNCTION__, __LINE__, x);
+        printf("[IN %s][line %d] x = %ld\n", __FUNCTION__, __LINE__, x);
         goto EXIT;
     }
 
diff --git a/testsuites/unittest/libc/util/smoke/util_test_004.cpp b/testsuites/unittest/libc/util/smoke/util_test_004.cpp
index b9874ee3015d01ec8a5655c134589f4bb18cfa0a..9bb0b38c0b965a5f8c10969dfbef1541004f246c 100644
--- a/testsuites/unittest/libc/util/smoke/util_test_004.cpp
+++ b/testsuites/unittest/libc/util/smoke/util_test_004.cpp
@@ -39,7 +39,7 @@ static UINT32 TestCase(VOID)
 
     x = jrand48(seed);
     if ((x < -JRAND48_NUM) || (x > JRAND48_NUM)) {
-        printf("[IN %s][line %d] x = %d\n", __FUNCTION__, __LINE__, x);
+        printf("[IN %s][line %d] x = %ld\n", __FUNCTION__, __LINE__, x);
         goto EXIT;
     }