This patch fixes the bus error by making sure the class structs in copy_classes are 8-byte aligned.
Index: libxi-1.4.3/src/XExtInt.c
===================================================================
--- libxi-1.4.3.orig/src/XExtInt.c 2011-08-07 02:46:36.164701285 +0200
+++ libxi-1.4.3/src/XExtInt.c 2011-08-07 02:37:50.808340152 +0200
@@ -1435,7 +1435,7 @@
break;
}
- len += l;
+ len = ((len + 7) & -8) + l;
ptr_wire += any_wire->length * 4;
}
@@ -1467,6 +1467,7 @@
for (i = 0; i < nclasses; i++)
{
+ ptr_lib = (void*)(((size_t)ptr_lib + 7) & -8);
any_lib = (XIAnyClassInfo*)ptr_lib;
any_wire = (xXIAnyInfo*)ptr_wire;
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