no libc, start on socket x11

Common/std.h

@@ -3,13 +3,16 @@
    even memory mnagement.
 */
 
+#ifndef COM_STD_H
+#define COM_STD_H
+
 #include <stdbool.h>
 #include <stddef.h>
 
-extern void *com_std_realloc(void *ptr, size_t size);
-extern void com_std_free(void *ptr);
+/* Note: Freeing is done by passing 0 size to pointer. */
+extern void *com_std_alloc(void *ptr, size_t size);
 
-/* Note: Functions listed below are only available for test builds. */
+/* Note: Functions listed below are only available for dev builds. */
 /* Trigonometry functions are for reference testing of our own fixed point
  * implementations. Do not use otherwise. */
 extern void com_std_assert(bool holds);
@@ -18,3 +21,5 @@ extern double com_std_sqrt(double v);
 extern double com_std_fabs(double v);
 extern double com_std_sin(double v);
 extern double com_std_cos(double v);
+
+#endif