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[cc1] Allow non constant initializers in scalar vars

They aren't a problem, aggregate variables are the problem

--- a/cc1/init.c

+++ b/cc1/init.c

@@ -296,12 +296,12 @@

 	Type *tp = sym->type;

 	size_t n; /* FIXME: It should be SIZET */

-	if (!(np->flags & NCONST))

-		abort(); /* TODO: Implement not constant initializers */

 repeat:

 	switch (tp->op) {

 	case UNION:

+		if (!(np->flags & NCONST))

+			abort(); /* TODO */

 		n = tp->n.elem-1;

 		tp = tp->p.fields[n]->type;

 		np = np->sym->u.init[n];

@@ -308,6 +308,8 @@

 		goto repeat;

 	case ARY:

 	case STRUCT:

+		if (!(np->flags & NCONST))

+			abort(); /* TODO */

 		hidden = newsym(NS_IDEN, NULL);

 		hidden->type = sym->type;

 		hidden->flags |= SLOCAL | SHASINIT;