2010-07-15  Magnus Granberg  <zorry@gentoo.org>
	    Kevin F. Quinn  <kevquinn@gentoo.org>

        * builtins.c (expand_builtin_init_trampoline): If
	-Wtrampolines make a warning.
	* common.opt:   Add -Wtrampolines.
        * doc/invoke.texi:      Add -Wtrampolines.
testsuite/
        * gcc.dg/Wtrampolines.c: New.

Co-Authored-By: Kevin F. Quinn <kevquinn@gentoo.org>

From-SVN: r162205