diff --git a/targets/_any/stdlib/include/stdio.h b/targets/_any/stdlib/include/stdio.h
index 2428723..529524b 100644
--- a/targets/_any/stdlib/include/stdio.h
+++ b/targets/_any/stdlib/include/stdio.h
@@ -12,6 +12,10 @@
 #define stderr __stderr
 #define stdin __stdin
 
+#define SEEK_SET 1
+#define SEEK_CUR 2
+#define SEEK_END 3
+
 BA_EXTERN_C_BEGIN
 
 typedef struct __file FILE;
diff --git a/targets/_any/stdlib/include/stdlib.h b/targets/_any/stdlib/include/stdlib.h
index fd8008b..da521e8 100644
--- a/targets/_any/stdlib/include/stdlib.h
+++ b/targets/_any/stdlib/include/stdlib.h
@@ -11,6 +11,7 @@ BA_EXTERN_C_BEGIN
 
 BA_CXX_NORETURN void abort();
 int atexit(void (*func)()) BA_CXX_NOEXCEPT;
+BA_CXX_NORETURN void exit(int exitCode) BA_CXX_NOEXCEPT;
 BA_CXX_NODISCARD char* getenv(const char* name) BA_CXX_NOEXCEPT;
 
 BA_CXX_NODISCARD int abs(int n) BA_CXX_NOEXCEPT;