Cleans up mac projects, and builds everything 64 bit

src/common/mac/dump_syms.h

Index: src/common/mac/dump_syms.h
===================================================================
--- src/common/mac/dump_syms.h	(revision 623)
+++ src/common/mac/dump_syms.h	(working copy)
@@ -83,7 +83,17 @@
   // object file, then the dumper will dump the object file whose
   // architecture matches that of this dumper program.
   bool SetArchitecture(cpu_type_t cpu_type, cpu_subtype_t cpu_subtype);
-
+  
+  // If this dumper's file includes an object file for |arch_name|, then select 
+  // that object file for dumping, and return true. Otherwise, return false, 
+  // and leave this dumper's selected architecture unchanged.
+  //
+  // By default, if this dumper's file contains only one object file, then
+  // the dumper will dump those symbols; and if it contains more than one
+  // object file, then the dumper will dump the object file whose
+  // architecture matches that of this dumper program.
+  bool SetArchitecture(const std::string &arch_name);

[jimb, 2010/07/19 22:35:50]

I didn't see where this got used. Is it?

+  
   // Return a pointer to an array of 'struct fat_arch' structures,
   // describing the object files contained in this dumper's file. Set
   // *|count| to the number of elements in the array. The returned array is