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-rw-r--r--sys/include/libc.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/include/libc.h b/sys/include/libc.h
index 833a3f50b..a16ab4ef4 100644
--- a/sys/include/libc.h
+++ b/sys/include/libc.h
@@ -328,6 +328,8 @@ extern double cputime(void);
extern long times(long*);
extern long tm2sec(Tm*);
extern vlong nsec(void);
+extern char* isotime(Tm*);
+extern char* isodate(Tm*);
extern void cycles(uvlong*); /* 64-bit value of the cycle counter if there is one, 0 if there isn't */