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-rw-r--r--tools/cpu/nios2/ptf.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/cpu/nios2/ptf.c b/tools/cpu/nios2/ptf.c
index 076c287222..7a31c11632 100644
--- a/tools/cpu/nios2/ptf.c
+++ b/tools/cpu/nios2/ptf.c
@@ -10,6 +10,7 @@
#include <string.h>
#include <stdlib.h>
#include <errno.h>
+#include <ctype.h>
#include "ptf.h"
#define PTFPARSER_MAXDEPTH 20