[MacPorts] #49177: clang-3.5: ld: library not found for -lc++ (was: clang-3.5 fails to build (Xcode 7.0.1, OS X El Capitan))

[MacPorts]

#49177: clang-3.5: ld: library not found for -lc++
-----------------------------+------------------------
  Reporter:  carsten.sinz@…  |      Owner:  jeremyhu@…
      Type:  defect          |     Status:  new
  Priority:  Normal          |  Milestone:
 Component:  ports           |    Version:  2.3.4
Resolution:                  |   Keywords:  elcapitan
      Port:  clang-3.5       |
-----------------------------+------------------------
Changes (by ryandesign@…):

 * keywords:   => elcapitan
 * owner:  macports-tickets@… => jeremyhu@…


Old description:

> Trying to build clang-3.5 with Xcode 7.0.1 (Build version 7A1001) on OS X
> El Capitan 10.11 (15A284) fails:
>
> $ sudo port install clang-3.5 \\
> --->  Computing dependencies for clang-3.5 \\
> ... \\
> --->  Building clang-3.5 \\
> Error: org.macports.build for port clang-3.5 returned: command execution
> failed \\
> Please see the log file for port clang-3.5 for details: \\
> /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_llvm-3.5/clang-3.5/main.log
> \\
> ...\\
> Error: Processing of port clang-3.5 failed \\
>
> This seems to be a linker problem related to libc++, as the log file
> repeatedly contains the lines:
>
> :info:build ld: library not found for -lc++ \\
> :info:build clang: error: linker command failed with exit code 1 (use -v
> to see invocation) \\
>
> BTW: Building clang-3.6 on the same system works without a problem.

New description:

 Trying to build clang-3.5 with Xcode 7.0.1 (Build version 7A1001) on OS X
 El Capitan 10.11 (15A284) fails:

 {{{
 $ sudo port install clang-3.5
 --->  Computing dependencies for clang-3.5
 ...
 --->  Building clang-3.5
 Error: org.macports.build for port clang-3.5 returned: command execution
 failed
 Please see the log file for port clang-3.5 for details:
 /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_llvm-3.5/clang-3.5/main.log
 ...
 Error: Processing of port clang-3.5 failed
 }}}

 This seems to be a linker problem related to libc++, as the log file
 repeatedly contains the lines:

 {{{
 :info:build ld: library not found for -lc++
 :info:build clang: error: linker command failed with exit code 1 (use -v
 to see invocation)
 }}}

 BTW: Building clang-3.6 on the same system works without a problem.

--

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Ticket URL: <https://trac.macports.org/ticket/49177#comment:3>
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