PR 24392
	* configure.ac: Invoke AC_CHECK_SIZEOF(int).
	* configure: Regenerate.
	* coffgen.c (coff_get_reloc_upper_bound): Replace gcc diagnostic
	workaround with SIZEOF_LONG vs. SIZEOF_INT check.
	* elf.c (_bfd_elf_get_reloc_upper_bound): Likewise.
	* elf64-sparc.c (elf64_sparc_get_reloc_upper_bound): Likewise.
	* mach-o.c (bfd_mach_o_get_reloc_upper_bound): Likewise.