PR target/10663
	* configure.in (HAVE_LD_RO_RW_SECTION_MIXING): Redirect
	assembler and linker output to /dev/null.
	Use a 'sed' construct instead of 'grep -A1'.
	* configure: Regenerate.

Co-Authored-By: Paolo Bonzini <bonzini@gnu.org>

From-SVN: r67479