LibC: Fix compiler warnings

It can now compile with almost all compiler warnings turned on without
producing any warnings.

1 files changed, 1 insertions, 0 deletions

diff --git a/userland/libc/tb/sv.c b/userland/libc/tb/sv.c
index 9bffce3..500d041 100644
--- a/userland/libc/tb/sv.c
+++ b/userland/libc/tb/sv.c
@@ -2,6 +2,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <tb/sv.h>
+#include <math.h>
 
 char *SV_TO_C(struct sv s) {
   char *c_string = malloc(s.length + 1);