Work around the unpredictible mangling of int64_t and uint64_t

src/mars.h

@@ -270,13 +270,22 @@ extern Global global;
 
 #include "complex_t.h"
 
+// Because int64_t and friends may be any integral type of the
+// correct size, we have to explicitly ask for the correct
+// integer type to get the correct mangling with ddmd
+#if __LP64__
 // Be careful not to care about sign when using dinteger_t
-typedef uint64_t dinteger_t;    // use this instead of integer_t to
-                                // avoid conflicts with system #include's
-
+// use this instead of integer_t to
+// avoid conflicts with system #include's
+typedef unsigned long dinteger_t;
 // Signed and unsigned variants
-typedef int64_t sinteger_t;
-typedef uint64_t uinteger_t;
+typedef long sinteger_t;
+typedef unsigned long uinteger_t;
+#else
+typedef unsigned long long dinteger_t;
+typedef long long sinteger_t;
+typedef unsigned long long uinteger_t;
+#endif
 
 typedef int8_t                  d_int8;
 typedef uint8_t                 d_uns8;