PR c++/25294

	* directives.c (do_pragma): If pragma line ends with multi-line
	block comment, end the saved deferred pragma string before that
	comment.  Handle embedded '\0' chars on the pragma line.

	* gcc.dg/pragma-pack-3.c: New test.
	* g++.dg/parse/pragma3.C: New test.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@109201 138bc75d-0d04-0410-961f-82ee72b054a4