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Jeremy Huddleston Sequoia (jeremyhu) pushed a commit to branch master
in repository macports-ports.

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<p><a href="https://github.com/macports/macports-ports/commit/f741fad37426c4e3e5e149686a9d774f701cab53">https://github.com/macports/macports-ports/commit/f741fad37426c4e3e5e149686a9d774f701cab53</a></p>
<pre style="white-space: pre; background: #F8F8F8">The following commit(s) were added to refs/heads/master by this push:
<span style='display:block; white-space:pre;color:#404040;'>     new f741fad  libcxx: Blacklist clang-3.8+
</span>f741fad is described below

<span style='display:block; white-space:pre;color:#808000;'>commit f741fad37426c4e3e5e149686a9d774f701cab53
</span>Author: Jeremy Huddleston Sequoia <jeremyhu@macports.org>
AuthorDate: Thu Dec 28 23:26:05 2017 -0800

<span style='display:block; white-space:pre;color:#404040;'>    libcxx: Blacklist clang-3.8+
</span><span style='display:block; white-space:pre;color:#404040;'>    
</span><span style='display:block; white-space:pre;color:#404040;'>    Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@macports.org>
</span>---
 lang/libcxx/Portfile | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

<span style='display:block; white-space:pre;color:#808080;'>diff --git a/lang/libcxx/Portfile b/lang/libcxx/Portfile
</span><span style='display:block; white-space:pre;color:#808080;'>index 71c55be..8fea108 100644
</span><span style='display:block; white-space:pre;background:#e0e0ff;'>--- a/lang/libcxx/Portfile
</span><span style='display:block; white-space:pre;background:#e0e0ff;'>+++ b/lang/libcxx/Portfile
</span><span style='display:block; white-space:pre;background:#e0e0e0;'>@@ -72,13 +72,20 @@ variant replacemnt_libcxx description {EXPERTS ONLY: Build a replacement libcxxa
</span> if {${os.major} < 11 || [variant_isset replacemnt_libcxx]} {
     compiler.blacklist *gcc* {clang < 500}
 
<span style='display:block; white-space:pre;background:#ffe0e0;'>-    # clang 3.5 and newer are blacklisted to prevent dependency cycles
</span><span style='display:block; white-space:pre;background:#e0ffe0;'>+    # clang 3.5 and newer are conditionally blacklisted to prevent dependency cycles
</span>     foreach ver {3.5 3.6 3.7 3.8 3.9 4.0 5.0 devel} {
         if {![file exists ${prefix}/bin/clang-mp-${ver}]} {
             compiler.blacklist-append macports-clang-${ver}
         }
     }
 
<span style='display:block; white-space:pre;background:#e0ffe0;'>+    # clang 3.8 and newer are blacklisted due to a build failure in stdlib.h that needs to ne triaged
</span><span style='display:block; white-space:pre;background:#e0ffe0;'>+    foreach ver {3.8 3.9 4.0 5.0 devel} {
</span><span style='display:block; white-space:pre;background:#e0ffe0;'>+        if {![file exists ${prefix}/bin/clang-mp-${ver}]} {
</span><span style='display:block; white-space:pre;background:#e0ffe0;'>+            compiler.blacklist-append macports-clang-${ver}
</span><span style='display:block; white-space:pre;background:#e0ffe0;'>+        }
</span><span style='display:block; white-space:pre;background:#e0ffe0;'>+    }
</span><span style='display:block; white-space:pre;background:#e0ffe0;'>+
</span>     supported_archs i386 x86_64 ppc
 
     if {[variant_isset universal] && [lsearch ${universal_archs} ppc] != -1} {
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