diff options
Diffstat (limited to 'libbuild2/parser.cxx')
| -rw-r--r-- | libbuild2/parser.cxx | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/libbuild2/parser.cxx b/libbuild2/parser.cxx index d5514b7..f0eafb3 100644 --- a/libbuild2/parser.cxx +++ b/libbuild2/parser.cxx @@ -2515,25 +2515,25 @@ namespace build2 o.dir.normalize (); // Note: don't collapse current to empty. - // Make sure out and src are parallel. - // - // See similar code for targets in scope::find_target_type(). + // Make sure out and src are parallel unless both were specified as + // absolute. We make an exception for this case because out may be + // used to "tag" imported targets (see cc::search_library()). So it's + // sort of the "I know what I am doing" escape hatch (it would have + // been even better to verify such a target is outside any project + // but that won't be cheap). // // For now we require that both are either relative or absolute. // - if (n.dir.empty () && o.dir.current ()) + // See similar code for targets in scope::find_target_type(). + // + if (n.dir.absolute () && o.dir.absolute ()) + ; + else if (n.dir.empty () && o.dir.current ()) ; else if (o.dir.relative () && n.dir.relative () && o.dir == n.dir) ; - else if (o.dir.absolute () && - n.dir.absolute () && - o.dir.sub (root_->out_path ()) && - n.dir.sub (root_->src_path ()) && - o.dir.leaf (root_->out_path ()) == - n.dir.leaf (root_->src_path ())) - ; else fail (ploc) << "prerequisite output directory " << o.dir << " must be parallel to source directory " << n.dir; |