Changes between Initial Version and Version 1 of Ticket #49178, comment 11


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Timestamp:
Dec 6, 2015, 11:37:19 PM (9 years ago)
Author:
dbevans (David B. Evans)
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  • Ticket #49178, comment 11

    initial v1  
    1 It turns out that the difference between Xcode 7.0 and earlier versions is that Xcode 7.0 introduces an implementation of C11 native atomics that doesn't exist in the earlier versions.  VLC attempts to use this if present, resulting in the build failure in the bluray module. VLC falls back to its own implementation if none are provided by the native OS.  This is what happends for Xcode 6.4 and earlier.
     1It turns out that the difference between Xcode 7.0 and earlier versions is that Xcode 7.0 introduces an implementation of [http://en.cppreference.com/w/c/atomic C11 native atomics] that doesn't exist in the earlier versions.  VLC attempts to use this if present, resulting in the build failure in the bluray module. VLC falls back to its own implementation if none are provided by the native OS.  This is what happends for Xcode 6.4 and earlier.
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    3 This doesn't necessarily mean that the Xcode 7.0 is faulty, since over half a dozen other modules use them successfully.
     3This doesn't necessarily mean that the Xcode 7.0 atomitcs code is faulty, since over half a dozen other VLC modules use them successfully.
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    55Patch applied in r143186 that disables the use of Xcode 7.0 atomics (in the bluray module only) causing VLC to use its fall back code as in the earlier Xcode versions.