diff -ru icu.orig/source/common/unames.c icu/source/common/unames.c
--- icu.orig/source/common/unames.c	2007-10-27 11:51:32.000000000 +0100
+++ icu/source/common/unames.c	2007-10-27 11:52:09.000000000 +0100
@@ -37,10 +37,16 @@
 #define LINES_PER_GROUP (1UL<<GROUP_SHIFT)
 #define GROUP_MASK (LINES_PER_GROUP-1)
 
+#ifdef __GNUC__
+#define PACKED __attribute__ ((packed))
+#else
+#define PACKED 
+#endif
+
 typedef struct {
     uint16_t groupMSB,
              offsetHigh, offsetLow; /* avoid padding */
-} Group;
+} PACKED Group;
 
 typedef struct {
     uint32_t start, end;