[MacPorts] #62726: openbox-3.5.0_0.darwin_20.x86_64: Build failure on Big Sur

[MacPorts]

#62726: openbox-3.5.0_0.darwin_20.x86_64: Build failure on Big Sur
---------------------+---------------------
 Reporter:  schulzs  |      Owner:  (none)
     Type:  defect   |     Status:  new
 Priority:  Normal   |  Milestone:
Component:  ports    |    Version:  2.6.4
 Keywords:           |       Port:  openbox
---------------------+---------------------
 {{{sudo port install openbox}}}
 fails with

 {{{Warning: The macOS 11.2 SDK does not appear to be installed. Ports may
 not build correctly.}}}

 {{{...}}}

 {{{--->  Attempting to fetch openbox-3.5.0_0.darwin_20.x86_64.tbz2 from
 https://mse.uk.packages.macports.org/openbox}}}

 {{{--->  Building openbox}}}

 {{{Error: Failed to build openbox: command execution failed}}}

 {{{Error: See
 /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_x11_openbox/openbox/main.log
 for details.}}}

 I'm sure the SDK is installed (I've reinstalled XCode and the command line
 tools, and I can compile my own projects and most other ports), but it may
 be a newer version? XCode is version 12.4.

 The logfile (attached) shows a number of missing X-symbols during linking
 (_XChangeProperty, _XCloseDisplay,...).

 MacOS Big Sur 11.2.3, 16-inch MacBook Pro, 2019

 {{{uname -a: Darwin Dante.fritz.box 20.3.0 Darwin Kernel Version 20.3.0:
 Thu Jan 21 00:07:06 PST 2021; root:xnu-7195.81.3~1/RELEASE_X86_64
 x86_64}}}

-- 
Ticket URL: <https://trac.macports.org/ticket/62726>
MacPorts <https://www.macports.org/>
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