[MacPorts] BigSurProblems modified

[MacPorts Wiki]

Page "BigSurProblems" was changed by mpasternak
Diff URL: <https://trac.macports.org/wiki/BigSurProblems?action=diff&version=2>
Revision 2
Comment: Describe manual installation
Changes:
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Index: BigSurProblems
=========================================================================
--- BigSurProblems (version: 1)
+++ BigSurProblems (version: 2)
@@ -12,6 +12,12 @@
 
 There have been reports that the `-license` option might not be sufficient alone, and following command might be required to agree to the license: `sudo xcodebuild -runFirstLaunch`
 
+== Install macOS SDK 11.0 manually in case of problems == 
+
+Some users who upgraded from earlier versions of macOS reported, that `xcode-select --install` didn't gave proper results (didn't install neither Xcode, nor the SDK required) and first the installation of Xcode from AppStore and then the installation of `Command-line tools for Xcode 12.2` was required from Apple Developer site, as described here: https://www.macports.org/install.php . 
+
+Symptoms that your system requires manual installation: console message about missing SDK (`Warning: The macOS 11.0 SDK does not appear to be installed. Ports may not build correctly. Warning: You can install it as part of the Xcode Command Line Tools package by running `xcode-select --install'.`) or a message about C compiler being unable to create executables in build logs. 
+
 == Tickets for Broken Ports ==
 
 [[TicketQuery(component=ports&status!=closed&keywords~=bigsur,or,component=ports&status!=closed&keywords~=11.0)]]
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