Fwd: [99297] trunk/dports/science/mpich2/Portfile

[Jeremy Huddleston Sequoia]

What's the radar number for this clang bug?

Begin forwarded message:

> From: eborisch at macports.org
> Subject: [99297] trunk/dports/science/mpich2/Portfile
> Date: October 31, 2012 9:28:19 AM PDT
> To: macports-changes at lists.macosforge.org
> Reply-To: macports-dev at lists.macosforge.org, eborisch at macports.org
> 
> Revision: 99297
>          http://trac.macports.org//changeset/99297
> Author:   eborisch at macports.org
> Date:     2012-10-31 09:28:19 -0700 (Wed, 31 Oct 2012)
> Log Message:
> -----------
> mpich2: blacklist clang for Xcode 4.5.1 and above. Fixes #36654.
> 
> Modified Paths:
> --------------
>    trunk/dports/science/mpich2/Portfile
> 
> Modified: trunk/dports/science/mpich2/Portfile
> ===================================================================
> --- trunk/dports/science/mpich2/Portfile	2012-10-31 13:56:01 UTC (rev 99296)
> +++ trunk/dports/science/mpich2/Portfile	2012-10-31 16:28:19 UTC (rev 99297)
> @@ -134,15 +134,30 @@
> }
> 
> variant llvm description {
> -    Use llvm-gcc
> +    Use Apple-supplied llvm-gcc
> } conflicts gcc43 gcc44 gcc45 gcc46 gcc47 clang clang31 {
>     configure.compiler      llvm-gcc-4.2
> }
> 
> -variant clang description {
> -    Use clang
> -} conflicts gcc43 gcc44 gcc45 gcc46 gcc47 llvm clang31 {
> -    configure.compiler      clang
> +# Apple clang version 4.1 currently segfaults (Xcode 4.5.1)
> +# See https://trac.macports.org/ticket/36654#comment:9
> +if {[vercmp ${xcodeversion} 4.5.1] >= 0} {
> +    compiler.blacklist      clang
> +    # Keeping variant so all the conflict lines don't balk and so upgrades
> +    # of +clang are not moved to llvm without warning.
> +    variant clang description {
> +        !!THIS CLANG VERSION BREAKS. UNUSABLE VARIANT HERE AS PLACEHOLDER ONLY!!
> +    } conflicts gcc43 gcc44 gcc45 gcc46 gcc47 llvm clang31 {
> +        ui_error \
> +          "This version of clang segfaults. Please select a different compiler."
> +        return -code error "Unsupported clang version. Try +clang31 or +llvm ?"
> +    }
> +} else {
> +    variant clang description {
> +        Use Apple-supplied clang
> +    } conflicts gcc43 gcc44 gcc45 gcc46 gcc47 llvm clang31 {
> +        configure.compiler      clang
> +    }
> }
> 
> variant clang31 description {
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