[MacPorts] #38279: rust @0.5: multiple issues

[MacPorts]

#38279: rust @0.5: multiple issues
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  Reporter:  egall@…  |      Owner:  g5pw@…
      Type:  defect   |     Status:  assigned
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.1.3
Resolution:           |   Keywords:
      Port:  rust     |
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Changes (by larryv@…):

 * cc: g5pw@… (removed)


Comment:

 Replying to [ticket:38279 egall@…]:
 > ``1. Rust currently doesn't work on 10.5 and lower:
 > https://github.com/mozilla/rust/issues/4232

 Does that mean it doesn’t work on 10.5, or that it doesn’t work with
 10.5’s compilers? There’s a difference.

 > ``2. Rust does not support universal binaries:
 > https://github.com/mozilla/rust/issues/2024
 >
 > Something like the following could be added to fix this:
 > {{{
 > supported_archs i386 x86_64
 > universal_variant   no
 > }}}

 This doesn’t “fix” anything; it just codifies the restriction. And does
 Rust not support being built on PowerPC?

 > ``3. Rust's configure script doesn't recognize the
 > `--disable-dependency-tracking` flag. This could be solve by either
 > removing the universal variant as per !#2 above, or by adding
 > something like this to the portfile:
 > {{{
 > configure.universal_args-delete --disable-dependency-tracking
 > }}}

 If Rust doesn’t support being build universal, this is a moot point.

 > ``4. Seeing as Rust basically builds its own copy of llvm, it should use
 > the same dependencies as llvm (i.e. `libffi`, `llvm_select`, and
 > `perl5`).

 It builds its own copy of LLVM? Why? Can we make it use ours?

 > ``5. Besides the dependencies listed in !#4 above, it should also
 > include the dependencies listed in the
 > [http://static.rust-lang.org/doc/0.5/tutorial.html#getting-started Rust
 Language Tutorial],
 > i.e. it should:
 >
 > - blacklist gcc versions lower than 4.4, and clang versions lower than 3
 > - depend on either python26 or python27 (maybe just python_select as a
 placeholder)

 No. Pick one or the other.

 > - use `build.type gnu` and depend on gmake

 A dependency is not necessary; OS X comes with GNU Make.

 > - depend on curl

 Why? Does the build process download something? It should not be doing
 that.

-- 
Ticket URL: <https://trac.macports.org/ticket/38279#comment:3>
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