this tmp1 is not required after r35538.
* addr2line.c: suppress warnings.
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because the index specifies the index of given included_directories
which is separated by NUL and its index is begun from 1.
Note that 0 specifies the current directory of the compilation.
see also http://www.dwarfstd.org/doc/dwarf-2.0.0.pdf
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A user of distribution provided ruby will see line
info if s/he has a debug package for ruby.
patched by Shinichiro Hamaji [ruby-dev:42655]
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To ignore, it needs to read a sigle unsigned LEB128 integer.
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functions in backtrace. [ruby-dev:42625]
a patch from shinichiro.h <shinichiro.hamaji AT gmail.com>
* addr2line.h: ditto.
* common.mk: add addr2line.$(OBJEXT).
* configure.in: check dl_iterate_phdr.
* vm_dump.c (rb_vm_bugreport): use rb_dump_backtrace_with_lines in
addr2line.c when the binary is ELF.
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