re PR c++/17242 (Testsuite fails due to duplicate symbols)

re PR c++/17242 (Testsuite fails due to duplicate symbols)

	PR c++/17242
	* configure.ac: Add GAS check for HP-UX .nsubspa comdat.
	* configure, config.in: Rebuilt.
	* config/pa/pa-hpux10.h (SUPPORTS_ONE_ONLY, MAKE_DECL_ONE_ONLY): Delete
	defines.
	* config/pa/pa.c (pa_select_section): Allow uninitialized variables in
	one-only (comdat) subspaces.
	* config/pa/som.h (SUPPORTS_SOM_COMDAT): New define.
	(SUPPORTS_ONE_ONLY): True if SUPPORTS_WEAK or SUPPORTS_SOM_COMDAT are
	true.
	(MAKE_DECL_ONE_ONLY): Place uninitialized variables in common.

From-SVN: r92177