LibC: Fix compiler warnings

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

2 files changed, 2 insertions, 1 deletions

diff --git a/userland/libc/tb/sb.c b/userland/libc/tb/sb.c
index 0d0ec52..c3fbc64 100644
--- a/userland/libc/tb/sb.c
+++ b/userland/libc/tb/sb.c
@@ -33,7 +33,7 @@ void sb_append_char(struct sb *ctx, char c) {
   ctx->length++;
 }
 
-int sb_delete_right(struct sb *ctx, int n) {
+int sb_delete_right(struct sb *ctx, size_t n) {
   n = min(n, ctx->length);
   ctx->length -= n;
   return n;
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);