re PR c/28768 (Preprocessor doesn't parse tokens correctly?)

re PR c/28768 (Preprocessor doesn't parse tokens correctly?)

libcpp:
	PR c/28768
	PR preprocessor/14634
	* lex.c (lex_string): Pedwarn for unterminated literals.

libgomp:
	* configure.ac (HAVE_CLOCK_GETTIME): Add missing second argument
	to AC_DEFINE.
	* configure: Regenerate.

gcc/testsuite:
	* gcc.dg/cpp/include2.c, gcc.dg/cpp/macspace1.c,
	gcc.dg/cpp/macspace2.c, gcc.dg/cpp/multiline.c,
	gcc.dg/cpp/trad/literals-2.c: Update expected diagnostics.

From-SVN: r116915