[BFD PATCH] Removing warning on clang

[Luca Pizzamiglio]

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Hi all,

compiling gdb on FreeBSD using clang with all-targets activated, I
modified some bfd files to remove some warnings.
This first patch trivially adds explicit void castings when a
bfd_set_section_* macro returns a value that is ignored.

Best regards,
Luca

2013-04-15 Luca Pizzamiglio <luca.pizzamiglio@gmail.com>

bfd/
    * coffcode.h: Added a cast to void when a bfd_set_section_*()
      macro's return value is ignored.
    * elf32-hppa.c: Likewise.
    * elf32-m32r.c: Likewise.
    * elf32-tic6x.c: Likewise.
    * elfnn-ia64.c: Likewise.
    * elfxx-mips.c: Likewise.
    * mach-o.c: Likewise.
    * mmo.c: Likewise.
    * opncls.c: Likewise.
    * peicode.h: Likewise.
    * vms-alpha.c: Likewise.
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