fix travis valgrind error

skip overlapping memccpy call there. locally is enough

Author: rurban

tests/test_memccpy_s.c

@@ -8,9 +8,12 @@
 
 #include "test_private.h"
 #include "test_expmem.h"
-#if !defined(__KERNEL__) && defined(HAVE_VALGRIND_VALGRIND_H)
+#ifndef __KERNEL__
+#include <stdlib.h>
+#ifdef HAVE_VALGRIND_VALGRIND_H
 #include <valgrind/valgrind.h>
 #endif
+#endif
 
 #define LEN (128)
 
@@ -127,12 +130,15 @@ int test_memccpy_s(void) {
     CHECK_SLACK(str1, nlen);
 #if !defined(__KERNEL__) && defined(HAVE_MEMCCPY) &&                           \
     (defined(__GLIBC__) || defined(_WIN32))
+    /* Ignore on smoker under valgrind */
+    if (!(getenv("TRAVIS") && getenv("VG")))
+      {
 #if defined(HAVE_VALGRIND_VALGRIND_H) &&                                       \
     (__VALGRIND_MAJOR__ > 3 ||                                                 \
      (__VALGRIND_MAJOR__ == 3 && __VALGRIND_MINOR__ >= 13))
-    if (!RUNNING_ON_VALGRIND)
+      if (!RUNNING_ON_VALGRIND)
 #endif
-    {
+      {
         /* with glibc/windows overlap allowed, &str[1] returned.
          * an darwin/bsd fails the __memccpy_chk().
          * fails also since valgrind 3.13, 3.12 was ok.
@@ -141,6 +147,7 @@ int test_memccpy_s(void) {
         char *sub = (char *)memccpy(str1, str1, 0, nlen);
         GCC_POP_WARN_RESTRICT
         printf("memccpy overlap: %p <=> %p\n", (void *)sub, (void *)str1);
+      }
     }
 #endif