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Warn about bugs in Xcode 11.

Browse Source 
README.MacOS:
    Mention the bug in Xcode 11 prior to Xcode 11.4, and provide pointers
    to both the problem and its solution.

configure.ac:
    When run on MacOS, print a warning and point to README.MacOS.
This commit is contained in:
Zoltan Somogyi
2020-05-07 21:48:11 +10:00
parent 5f47e4b742
commit 3e47a55862
2 changed files with 25 additions and 6 deletions
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5
README.MacOS
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@@ -202,6 +202,11 @@ QA118 <http://developer.apple.com/qa/qa2001/qa1118.html> for further details.)
This restriction only applies to system libraries. Statically linking against
Mercury libraries is fine.
Versions of Xcode 11 prior to Xcode 11.4 have bugs that cause the programs
they generate to crash. A discussion of this issue can be found at
https://forums.developer.apple.com/thread/121887. The github post
https://github.com/Mercury-Language/mercury/issues/88#issuecomment-624329679.
describes a way that has been found to fix the problem.
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Deep profiling on Mac OS X