[Bug binutils/22348] New: Shared libraries on Mac OS fail when targeting crx and cr16

[marc at groundctl dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=22348

            Bug ID: 22348
           Summary: Shared libraries on Mac OS fail when targeting crx and
                    cr16
           Product: binutils
           Version: 2.29
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: binutils
          Assignee: unassigned at sourceware dot org
          Reporter: marc at groundctl dot com
  Target Milestone: ---

Both opcodes/crx-dis.c and opcodex/cr16-dis.c define the symbols "instruction",
"size_changed", and "processing_argument_number".  Normally, this isn't a
problem because those symbols are common and don't conflict when linking the
shared library.  However, on Mac OS libtool adds "-fno-common" to the compiler
flags, which causes the symbols to be non-common and so they end up conflicting
when the shared library is linked.  This is most easily reproduced by
configuring with "--disable-werror --enable-targets=crx,cr16 --enable-shared".

"size_changed" and "processing_argument_number" can both be made static since
they're never referenced outside their respective source files, but I'm not
sure if "instruction" needs to be addressable from other source files.

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