Perl script has misspelled variable name

[charlesstaats]

In the perl script runtime.pl, there are two very similarly named variables: $base_source_line and $basesource_line. I'm fairly sure these were intended to be the same variable; the first is never modified after being set, while the second is modified but never used.

If you unify them, the result is a correction for certain #line directives on certain generated files. For instance, starting on line 21 of runarray.cc, the former text

#line 1 "./runtimebase.in"
#include "stack.h"
#include "types.h"
#include "builtin.h"

becomes

#line 23 "./runtimebase.in"
#include "stack.h"
#include "types.h"
#include "builtin.h"

Since #include "stack.h" is in fact line 23 of runtimebase.in (and not line 1), I think the changed version is correct.