[MacPorts] CompilerSelection modified

[MacPorts Wiki]

Page "CompilerSelection" was changed by chrstphrchvz
Diff URL: <https://trac.macports.org/wiki/CompilerSelection?action=diff&version=14>
Revision 14
Comment: add link to Xcode release notes for thread_local support
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Index: CompilerSelection
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--- CompilerSelection (version: 13)
+++ CompilerSelection (version: 14)
@@ -78,7 +78,7 @@
 To implement it, [https://en.wikipedia.org/wiki/MPICH MPICH] and [https://en.wikipedia.org/wiki/Open_MPI Open MPI] provide wrappers for Clang, GCC, and Xcode.
 
 The compilers provided by Xcode only support [https://en.wikipedia.org/wiki/Thread-local_storage thread-local storage] if the OS supports it, which did not happen until [https://en.wikipedia.org/wiki/Mac_OS_X_Lion Mac OS X Lion].\\
-However, the C++11 keyword was not supported until [https://developer.apple.com/videos/play/wwdc2016-405/?time=354 Xcode 8]. \\
+However, the C++11 `thread_local` keyword was not supported until Xcode 8 (see [https://developer.apple.com/library/archive/releasenotes/DeveloperTools/RN-Xcode/Chapters/Introduction.html#//apple_ref/doc/uid/TP40001051-CH1-SW127 release notes], [https://developer.apple.com/videos/play/wwdc2016-405/?time=354 WWDC presentation]). \\
 GCC and Clang can emulate thread-local storage even on versions of macOS that do not support it.
 
 
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