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[PATCH]: For x86_64 mingw32 the dwarf2 default unwind does not work


64-bit target should uses DWARF2 unwind by default. If 32-bit target 
configured with --disable-sjlj-exceptions, use DWARF2, else default to 
Reasoned by a bug in DWARF2 unwind for x86_64-mingw by default sjlj 
exceptions  needs to be enabled as for 32-bit target.


2007-12-06  Kai Tietz  <>

        * gcc/config/i386/cygming.h: Set DWARF2_UNWIND_INFO for 
x86_64-mingw32 target
        by default to zero as done for 32-bit mingw.

 i.A. Kai Tietz

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Attachment: x86_64-sjlj.txt
Description: Text document

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