[MacPorts] #49001: Add support to provide a clang-based as wrapper

[MacPorts]

#49001: Add support to provide a clang-based as wrapper
------------------------------------+------------------------
  Reporter:  howarth.at.macports@…  |      Owner:  jeremyhu@…
      Type:  defect                 |     Status:  assigned
  Priority:  Normal                 |  Milestone:
 Component:  ports                  |    Version:  2.3.3
Resolution:                         |   Keywords:
      Port:  clang-3.7              |
------------------------------------+------------------------

Comment (by howarth.at.macports@…):

 Replying to [comment:16 jeremyhu@…]:
 > Multiple things wrong with that statement.
 >
 > 1) cctools in OS X is only used to produce libmacho, not as.
 >

 That is not the behavior that I see on my 10.11 installation. The MacPorts
 cctools package shows a file...

 -r-xr-xr-x  0 root   admin   27948 Sep 29 14:37 ./opt/local/bin/as

 which is producing the output...

 % /opt/local/bin/as -v
 Apple Inc version cctools-870, GNU assembler version 1.38

 Since Xcode 7 doesn't contain the legacy assembler, it must be coming from
 the MacPorts cctools package.

 > 2) as (and most of the other toolchain bits) in /usr/bin are all xcrun
 stubs.  They just redirect to the toolchain in the selected Xcode.
 >
 > 3) The cctools provided by Xcode 7 are of more interest to you.
 >
 > You just need to be patient.

-- 
Ticket URL: <https://trac.macports.org/ticket/49001#comment:18>
MacPorts <https://www.macports.org/>
Ports system for OS X