[MacPorts] #61458: fresh install on Big Sur emits warning about SDK not installed

[MacPorts]

#61458: fresh install on Big Sur emits warning about SDK not installed
--------------------+--------------------
 Reporter:  wlipa   |      Owner:  (none)
     Type:  defect  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:  2.6.4
 Keywords:          |       Port:
--------------------+--------------------
 I updated Xcode to 12.2 and installed a fresh version of MacPorts for Big
 Sur.  Xcode-select reports that the command line tools are installed:


 {{{
 $ xcode-select --install
 xcode-select: error: command line tools are already installed, use
 "Software Update" to install updates
 }}}


 However the port command is giving a warning that the 11.0 SDK is not
 found.  I have accepted the Xcode license on the command line and verified
 that Xcode itself launches without installing components.


 {{{
 $ sudo port install xz
 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'.
 --->  Computing dependencies for xz
 ...
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/61458>
MacPorts <https://www.macports.org/>
Ports system for macOS