tjh.dev
1diff --git a/dos/string.h b/dos/string.h
2index f648de2..a502132 100644
3--- a/dos/string.h
4+++ b/dos/string.h
5@@ -5,12 +5,13 @@
6 #ifndef _STRING_H
7 #define _STRING_H
8
9+#include <stddef.h>
10+
11 /* Standard routines */
12 #define memcpy(a,b,c) __builtin_memcpy(a,b,c)
13 #define memmove(a,b,c) __builtin_memmove(a,b,c)
14 #define memset(a,b,c) __builtin_memset(a,b,c)
15 #define strcpy(a,b) __builtin_strcpy(a,b)
16-#define strlen(a) __builtin_strlen(a)
17
18 /* This only returns true or false */
19 static inline int memcmp(const void *__m1, const void *__m2, unsigned int __n)
20@@ -21,6 +22,13 @@ static inline int memcmp(const void *__m1, const void *__m2, unsigned int __n)
21 return rv;
22 }
23
24+static inline size_t strlen(const char *s)
25+{
26+ size_t len = 0;
27+ while (*s++) len++;
28+ return len;
29+}
30+
31 extern char *strchr(const char *s, int c);
32
33 #endif /* _STRING_H */