Data corruption bugfix

Detail:
  The code was continuing to reference a couple of data blocks after they
  had been freed, leading to corrupted output files that failed with
  undefined instruction errors. Potentially could have affected RISC OS,
  but this was first noticed on Linux where the failure seems to happen
  every time.
Admin:
  Verified that it now produces correct executables.

Version 5.10. Tagged as 'squeeze-5_10'

VersionNum

-/* (5.09)
+/* (5.10)
  *
  * This file is automatically maintained by srccommit, do not edit manually.
  * Last processed by srccommit version: 1.1.
  *
  */
-#define Module_MajorVersion_CMHG        5.09
+#define Module_MajorVersion_CMHG        5.10
 #define Module_MinorVersion_CMHG        
-#define Module_Date_CMHG                19 May 2010
+#define Module_Date_CMHG                18 Oct 2010
 
-#define Module_MajorVersion             "5.09"
-#define Module_Version                  509
+#define Module_MajorVersion             "5.10"
+#define Module_Version                  510
 #define Module_MinorVersion             ""
-#define Module_Date                     "19 May 2010"
+#define Module_Date                     "18 Oct 2010"
 
-#define Module_ApplicationDate          "19-May-10"
+#define Module_ApplicationDate          "18-Oct-10"
 
 #define Module_ComponentName            "squeeze"
 #define Module_ComponentPath            "castle/RiscOS/Tools/Sources/squeeze"
 
-#define Module_FullVersion              "5.09"
-#define Module_HelpVersion              "5.09 (19 May 2010)"
-#define Module_LibraryVersionInfo       "5:9"
+#define Module_FullVersion              "5.10"
+#define Module_HelpVersion              "5.10 (18 Oct 2010)"
+#define Module_LibraryVersionInfo       "5:10"

c/squeeze

@@ -715,10 +715,12 @@ static char *compresscode(word *code, int size, int execoffset)
   if (verbose > 1)
     fprintf(stderr, "-- encode gives %d in %d csec\n", header.encodedsize, ticks());
   tabstart = pos;
-  pos = encodetable(shorts, 0, pos); xfree(shorts);
-  pos = encodetable(longs,  1, pos); xfree(longs);
+  pos = encodetable(shorts, 0, pos);
+  pos = encodetable(longs,  1, pos);
   header.nshorts = shorts->size;
+  xfree(shorts);
   header.nlongs  = longs->size;
+  xfree(longs);
   /* now word-align before the header words */
   while (((int)pos & 3) != 0) *pos++ = 0;
   header.encodedtabs = (pos - tabstart);