[MacPorts] #48941: Compiler error trying to install Astropy

[MacPorts]

#48941: Compiler error trying to install Astropy
-----------------------------+--------------------------------
 Reporter:  shj.wallstrom@…  |      Owner:  macports-tickets@…
     Type:  defect           |     Status:  new
 Priority:  Normal           |  Milestone:
Component:  ports            |    Version:  2.3.3
 Keywords:                   |       Port:
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 I've been trying to install py27-astropy for days now but I get the
 following error:
 "Error: org.macports.build for port py27-astropy returned: command
 execution failed
 Please see the log file for port py27-astropy for details:
 /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports
 .org_release_tarballs_ports_python_py-astropy/py27-astropy/main.log"

 Checking this log file tells me (eventually):
 ":info:build Compiler specified by CC environment variable
 :info:build                     (/usr/bin/llvm-gcc-4.2:i686-apple-darwin11
 -llvm-gcc-4.2 (GCC) 4.2.1 (Based on Apple Inc. build 5658) (LLVM build
 2336.1.00)
 :info:build Copyright (C) 2007 Free Software Foundation, Inc.
 :info:build This is free software; see the source for copying conditions.
 There is NO
 :info:build warranty; not even for MERCHANTABILITY or FITNESS FOR A
 PARTICULAR PURPOSE.) will fail to compile astropy.
 :info:build                     Please set CC=clang and try again.
 :info:build                     You can do this, for example, by running:
 :info:build
 :info:build                         CC=clang python setup.py <command>
 :info:build
 :info:build                     where <command> is the command you ran.
 :info:build
 :info:build Command failed:  cd
 "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports
 .org_release_tarballs_ports_python_py-
 astropy/py27-astropy/work/astropy-1.0.4" &&
 /opt/local/Library/Frameworks/Python.framework/Versions/2.7/bin/python2.7
 setup.py --no-user-cfg --offline --no-git build --use-system-cfitsio
 --use-system-expat --use-system-wcslib --use-system-erfa "

 from which I gather that the compiler clang is necessary. I did not appear
 to have this compiler, so I installed it via macports (clang-3.4), but
 still get the same error trying to install astropy. I cannot find any info
 about how to tell macports to use a different compiler here.

-- 
Ticket URL: <https://trac.macports.org/ticket/48941>
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