Fix windows compile issues

ulong seems to be defined somewhere on Linux, thus I missed that, and of
course there's the fun with aligned memory allocation :/

libs/gamecode/convert.py

@@ -110,7 +110,7 @@ for width in range(4):
                 elif width == 2:
                     print(f"{case} VectorCompUop(&{dst},{cast},&{src}); break;")
                 else:
-                    expand = expand_str(width, src, f"({types[dst_type]})")
+                    expand = expand_str(width, src, f"(pr_{types[dst_type]}_t)")
                     print(f"{case} {dst} = {cast} {expand}; break;")
             elif mode == 2:
                 one = one_str(width, src_type)

tools/qfcc/source/value.c

@@ -59,6 +59,12 @@
 #include "tools/qfcc/include/type.h"
 #include "tools/qfcc/include/value.h"
 
+//FIXME I don't like this being here (or aligned_alloc being necessary in
+//the first place, but not at all sure what to do about that)
+#ifdef _WIN32
+#define aligned_alloc(al, sz) _aligned_malloc(sz, al)
+#endif
+
 typedef struct {
 	def_t      *def;
 	union {