PR c++/5089
	* doc/invoke.texi (-Wold-style-cast): Only warn about non-void casts.
cp:
	PR c++/5089
	* decl2.c (reparse_absdcl_as_casts): Don't warn about casts to void.
testsuite:
	* g++.dg/warn/oldcast1.C: New test.

From-SVN: r48472