[MacPorts] #33454: Failed to install libvpx

[MacPorts]

#33454: Failed to install libvpx
--------------------------------+-------------------------------------------
  Reporter:  proutyo@…          |       Owner:  macports-tickets@…                   
      Type:  defect             |      Status:  closed                               
  Priority:  Normal             |   Milestone:                                       
 Component:  ports              |     Version:  2.0.4                                
Resolution:  invalid            |    Keywords:                                       
      Port:  libvpx             |  
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Changes (by cal@…):

  * status:  reopened => closed
  * resolution:  => invalid


Comment:

 Replying to [comment:23 anotherperson2011@…]:
 > The contents of ''macports.conf" have never been modified and have the
 toolchain path set to "developer_dir
 /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain"
 , which seems correct.

 If `macports.conf` wasn't modified the setting for `developer_dir` would
 be commented. A value of
 `/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain`
 is _not_ the correct value; as stated above, please use
 `/Applications/Xcode.app/Contents/Developer/` or do not set the setting at
 all to let MacPorts automatically detect the correct path.

 > {{{
 > :info:configure Unable to invoke compiler: /usr/bin/clang -O2 -arch
 x86_64 -isysroot  -mmacosx-version-min=10.7 -m64 -fomit-frame-pointer
 -arch x86_64 -O3 -fPIC -Wall -Wdeclaration-after-statement -Wdisabled-
 optimization -Wpointer-arith -Wtype-limits -Wcast-qual -Wno-unused-
 function
 > }}}
 >
 > The failure seems to be due to the wrong compiler path being sought.
 Instead of "/usr/bin/clang" it ought to be "usr/bin/clang" (relative to
 $developer_dir).[[BR]]This issue does not occur with other Macport
 packages, it seems to be a bug in the libvpx configurator.

 No, the compiler path is correct. Please install the Command Line Tools
 from the Xcode Preferences' Downloads tab if you haven't already. This is
 required for MacPorts as documented in the guide, and the package contains
 `/usr/bin/clang`. The compiler invocation fails because of a bogus
 `-isysroot` flag without a path, which happens when there's no SDK found
 in `$sdk_dir`, which is
 `$developer_dir/Platforms/MacOSX.platform/Developer/SDKs`. This is also
 the reason why the value for `developer_dir` cannot be what you mentioned
 above.

-- 
Ticket URL: <https://trac.macports.org/ticket/33454#comment:24>
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