3 files changed, 4 insertions, 1 deletions
diff --git a/userland/libc/include/stdlib.h b/userland/libc/include/stdlib.h
index a389e8c..2dcd447 100644
--- a/userland/libc/include/stdlib.h
+++ b/userland/libc/include/stdlib.h
@@ -35,4 +35,5 @@ int atoi(const char *str);
 char *realpath(const char *filename, char *resolvedname);
 long atol(const char *nptr);
 long long atoll(const char *nptr);
+int setenv(const char *name, const char *value, int overwrite);
 #endif
diff --git a/userland/libc/include/tb/sv.h b/userland/libc/include/tb/sv.h
index 0ffe266..7062741 100644
--- a/userland/libc/include/tb/sv.h
+++ b/userland/libc/include/tb/sv.h
@@ -11,6 +11,8 @@
 #define C_TO_SV(_c_string)                                                     \
   ((struct sv){.length = strlen(_c_string), .s = (_c_string)})
 
+#define sv_length(a) ((a).length)
+
 struct sv {
   const char *s;
   size_t length;
diff --git a/userland/libc/include/unistd.h b/userland/libc/include/unistd.h
index 3f17df4..6905a18 100644
--- a/userland/libc/include/unistd.h
+++ b/userland/libc/include/unistd.h
@@ -13,7 +13,7 @@ extern char *optarg;
 
 int close(int fildes);
 int ftruncate(int fildes, size_t length);
-int execv(char *path, char **argv);
+int execv(const char *pathname, char *const argv[]);
 int pipe(int fd[2]);
 int dup(int fildes);
 int dup2(int org_fd, int new_fd);