* configure.ac: Check for glibc support for gnu_indirect_function

	* configure.ac: Check for glibc support for gnu_indirect_function
	support with static linking, setting automake conditional
	IFUNC_STATIC.
	* Makefile.in: Regenerate.
	* configure: Regenerate.

	* testsuite/Makefile.am (ifuncmain1static, ifuncmain2static)
	(ifuncmain4static, ifuncmain5static, ifuncmain7static): Add check
	for IFUNC_STATIC.
	* testsuite/Makefile.in: Regenerate.