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	* lto-wrapper.c (lto_wrapper_exit): Rename to ...
	(lto_wrapper_cleanup): ... this.  Do not exit.
	(fatal): Adjust.  Exit here.
	(fatal_perror): Likewise.
	(fatal_signal): New function.
	(main): Set up signal handlers to cleanup temporary files.
	* Makefile.in (lto-wrapper.o): Adjust dependencies.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@160153 138bc75d-0d04-0410-961f-82ee72b054a4