2010-06-22  Vincent Celier  <celier@adacore.com>

	* clean.adb (Parse_Cmd_Line): Recognize switch
	--unchecked-shared-lib-imports.
	(Usage): Add line for switch --unchecked-shared-lib-imports
	* makeusg.adb: Add line for switch --unchecked-shared-lib-imports
	* makeutl.ads: (Unchecked_Shared_Lib_Imports): New constant string
	moved from GPR_Util.
	* switch-m.adb (Scan_Make_Switches): Recognize switch
	--unchecked-shared-lib-imports.
	* vms_data.ads: Add VMS qualifiers /UNCHECKED_SHARED_LIB_IMPORTS.
	* gnat_ugn.texi: Add documentation for new switch
	--unchecked-shared-lib-imports.  Add also documentation for --subdirs.

From-SVN: r161186