node: ast::MetaItemKind::Word,
span: DUMMY_SP,
});
- if !allow_unstable_cfg && gated_cfg.is_some() {
- continue;
+
+ // Note that crt-static is a specially recognized cfg
+ // directive that's printed out here as part of
+ // rust-lang/rust#37406, but in general the
+ // `target_feature` cfg is gated under
+ // rust-lang/rust#29717. For now this is just
+ // specifically allowing the crt-static cfg and that's
+ // it, this is intended to get into Cargo and then go
+ // through to build scripts.
+ let value = value.as_ref().map(|s| s.as_str());
+ let value = value.as_ref().map(|s| s.as_ref());
+ if name != "target_feature" || value != Some("crt-static") {
+ if !allow_unstable_cfg && gated_cfg.is_some() {
+ continue;
+ }
}
- cfgs.push(if let &Some(ref value) = value {
+ cfgs.push(if let Some(value) = value {
format!("{}=\"{}\"", name, value)
} else {
format!("{}", name)
use llvm::LLVMRustHasFeature;
use rustc::session::Session;
use rustc_trans::back::write::create_target_machine;
-use syntax::feature_gate::UnstableFeatures;
use syntax::symbol::Symbol;
use libc::c_char;
}
let requested_features = sess.opts.cg.target_feature.split(',');
- let unstable_options = sess.opts.debugging_opts.unstable_options;
- let is_nightly = UnstableFeatures::from_environment().is_nightly_build();
let found_negative = requested_features.clone().any(|r| r == "-crt-static");
let found_positive = requested_features.clone().any(|r| r == "+crt-static");
found_positive
};
- // If we switched from the default then that's only allowed on nightly, so
- // gate that here.
- if (found_positive || found_negative) && (!is_nightly || !unstable_options) {
- sess.fatal("specifying the `crt-static` target feature is only allowed \
- on the nightly channel with `-Z unstable-options` passed \
- as well");
- }
-
if crt_static {
cfg.insert((tf, Some(Symbol::intern("crt-static"))));
}
+++ /dev/null
-// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-// compile-flags:-C target-feature=+crt-static
-// error-pattern: specifying the `crt-static` target feature is only allowed
-
-fn main() {}