nftw: fix thread cancellation support

_STDIO_WITH_THREAD_CANCELLATION_SUPPORT was never defined.
Include ../stdio/local.h to get the right definition per target.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>

newlib/libc/posix/nftw.c

@@ -29,6 +29,8 @@
 #include <string.h>
 #include <limits.h>
 #include <pthread.h>
+/* Pull in _STDIO_WITH_THREAD_CANCELLATION_SUPPORT */
+#include "../stdio/local.h"
 
 struct history
 {
@@ -141,7 +143,7 @@ int nftw(const char *path, int (*fn)(const char *, const struct stat *, int, str
 		return -1;
 	}
 	memcpy(pathbuf, path, l+1);
-	
+
 #ifdef _STDIO_WITH_THREAD_CANCELLATION_SUPPORT
 	pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
 #endif