pascal e7f261aa15 Update to gcc 4.6.3.
Also, sync a bit with base gcc:
- disable unsafe builtins
- disable -Wpointer-sign in -Wall
- move -fstrict-aliasing to -O3, disable -fstrict-overflow and
  -fdelete-null-pointer-checks
- enable -Wsystem-headers
- default to march=i486 on i386
- fix crtsavres on powerpc
- sync sparc64 config
- implement -Wvariable-decl, -Wstack-larger-than-N (alpha, amd64, i386, sparc,
  sparc64), -Wtrampolines, -ftrampolines
- default to -fno-ident
- fix -rdynamic by passing -export-dynamic to ld(1)

some bits from Brad, others from me.

tested by myself and jsg@, adastrap now hosted by sthen@ (thanks).

ok jsg@ sthen@
2012-03-31 20:02:03 +00:00

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$OpenBSD: patch-gcc_c-decl_c,v 1.1 2012/03/31 20:02:03 pascal Exp $
--- gcc/c-decl.c.orig Thu Feb 23 18:38:13 2012
+++ gcc/c-decl.c Mon Mar 12 08:42:51 2012
@@ -4788,6 +4788,8 @@ warn_variable_length_array (tree name, tree size)
"variable length array is used");
}
}
+ if (warn_variable_decl)
+ warning (OPT_Wvariable_decl, "variable-sized array %qE", name);
}
/* Given a size SIZE that may not be a constant, return a SAVE_EXPR to