#endif /* defined PERL_EMERGENCY_SBRK */
/* Don't use PerlIO buffered writes as they allocate memory. */
-#define MYMALLOC_WRITE2STDERR(s) PerlLIO_write(PerlIO_fileno(PerlIO_stderr()),s,strlen(s))
+#define MYMALLOC_WRITE2STDERR(s) PERL_UNUSED_RESULT(PerlLIO_write(PerlIO_fileno(PerlIO_stderr()),s,strlen(s)))
#ifdef DEBUGGING
#undef ASSERT