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-rw-r--r--mdk-stage1/dietlibc/liblatin1/latin1-isgraph.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/mdk-stage1/dietlibc/liblatin1/latin1-isgraph.c b/mdk-stage1/dietlibc/liblatin1/latin1-isgraph.c
index c8d4a5df0..e79a19e52 100644
--- a/mdk-stage1/dietlibc/liblatin1/latin1-isgraph.c
+++ b/mdk-stage1/dietlibc/liblatin1/latin1-isgraph.c
@@ -1,4 +1,7 @@
-int isgraph(int c) {
+#include <ctype.h>
+
+int isgraph(int x) {
+ unsigned char c=x&0xff;
return (c>=33 && c<=126) || (c>=161 && c<=255);
}