[MacPorts] #64257: graphviz: error: C compiler cannot create executables (was: (lion, mpv) failed to configure graphviz)

[MacPorts]

#64257: graphviz: error: C compiler cannot create executables
-----------------------+------------------------
  Reporter:  mrkapqa   |      Owner:  ryandesign
      Type:  defect    |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.7.1
Resolution:            |   Keywords:  lion
      Port:  graphviz  |
-----------------------+------------------------
Changes (by ryandesign):

 * status:  new => assigned
 * cc: mascguy (added)
 * keywords:  mpv lion graphviz => lion
 * owner:  (none) => ryandesign
 * port:  mpv => graphviz


Comment:

 Replying to [comment:1 reneeotten]:
 > is this failure with {{{mpv}}} any different than the other
 [ticket:61733 Trac ticket] you reported?

 I see no similarity with that ticket.

 What I see in the log is what appears to be something fundamentally broken
 about either the Xcode installation or the compiler, I don't know; I don't
 recall seeing this before:

 {{{
 configure:5527: /opt/local/bin/clang-mp-9.0 --version >&5
 2021-12-21 14:56:23.435 xcodebuild[4283:70b] CFPreferences: user home
 directory at file://localhost/opt/local/var/macports/home/ is unavailable.
 User domains will be volatile.
 2021-12-21 14:56:23.706 xcodebuild[4283:70b] [MT] DVTAssertions: ASSERTION
 FAILURE in
 /SourceCache/DVTFoundation/DVTFoundation-1195/Framework/Classes/FilePaths/DVTFilePath.m:364
 Details:  fsrep is absolute (starts with /)
 ('/opt/local/libexec/llvm-9.0/bin/clang') parentPath must be nil but it is
 not
 ('<DVTFilePath:0x400e55b40:'/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin'>')
 Object:   <DVTFilePath>
 Method:
 +_filePathForParent:fileSystemRepresentation:length:allowCreation:
 Thread:   <NSThread: 0x40010a220>{name = (null), num = 1}
 Hints: None
 Backtrace:
   0  0x0000000105eef77f -[DVTAssertionHandler
 handleFailureInMethod:object:fileName:lineNumber:messageFormat:arguments:]
 (in DVTFoundation)
   1  0x0000000105eef5d5 _DVTAssertionFailureHandler (in DVTFoundation)
 ... rest of stderr output deleted ...
 }}}

 Has duplicate #64258.

 Googling the error message, I found this:

 https://stackoverflow.com/questions/7788993/xcode-crashing-on-startup-
 parentpath-must-be-nil-but-it-is-not

 See if any of the suggestions there help, or try your own search for the
 error message.

-- 
Ticket URL: <https://trac.macports.org/ticket/64257#comment:3>
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