[python-committers] 2.7 compilation problem on Mac 10.10.4 - Failure with mac specific modules

[Ned Deily]

On Jul 17, 2015, at 13:26, Meador Inge <meadori at gmail.com> wrote:
> On Fri, Jul 17, 2015 at 11:21 AM, Senthil Kumaran <senthil at uthcode.com> wrote:
>> This failure happens only in 2.7 branch in the source tree.
>> 
>> [localhost 2.7]$ hg branch
>> 2.7
>> 
>> [localhost 2.7]$ hg head 2.7
>> changeset:   96916:ca78b9449e04
>> branch:      2.7
>> user:        Zachary Ware <zachary.ware at gmail.com>
>> date:        Thu Jul 16 00:24:48 2015 -0500
>> 
>> $./configure
>> 
>> is OK
>> 
>> $ make
>> /opt/twitter/bin/gcc-4.2 -c -fno-strict-aliasing -g -O2 -DNDEBUG -g -fwrapv
>> -O3 -Wall -Wstrict-prototypes  -I. -IInclude -I./Include   -DPy_BUILD_CORE
>> -o Python/mactoolboxglue.o Python/mactoolboxglue.c
>> In file included from
>> /System/Library/Frameworks/CoreServices.framework/Headers/CoreServices.h:55,
>>                 from
>> /System/Library/Frameworks/Carbon.framework/Headers/Carbon.h:20,
>>                 from Include/pymactoolbox.h:10,
>>                 from Python/mactoolboxglue.c:27:
>> /System/Library/Frameworks/CoreServices.framework/Frameworks/FSEvents.framework/Headers/FSEvents.h:486:
>> error: expected ‘,’ or ‘}’ before ‘__attribute__’
>> make: *** [Python/mactoolboxglue.o] Error 1
> 
> Are you really meaning to use GCC 4.2 (that is ancient)?
> 
> I can reproduce your problem, but only with gcc-4.2.
> Clang works just fine.
> Here are the compiler versions I am using:
> 
> drago:llvm meadori$ gcc-4.2 --version
> couldn't understand kern.osversion `14.3.0'
> i686-apple-darwin11-gcc-4.2.1 (GCC) 4.2.1 (Apple Inc. build 5666) (dot 3)
> Copyright (C) 2007 Free Software Foundation, Inc.
> This is free software; see the source for copying conditions.  There is NO
> warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
> 
> drago:llvm meadori$ gcc --version
> Configured with:
> --prefix=/Applications/Xcode.app/Contents/Developer/usr
> --with-gxx-include-dir=/usr/include/c++/4.2.1
> Apple LLVM version 6.0 (clang-600.0.56) (based on LLVM 3.5svn)
> Target: x86_64-apple-darwin14.3.0
> Thread model: posix
> 
> Hope that helps,

Meador's right.  Don't use the old gcc-4.2 with the current SDK / Command Line Tools.  Let CC default to "cc" or set it to "clang"; presumably something is setting the CC environment variable to /opt/twitter/bin/gcc-4.2.

--
  Ned Deily
  nad at acm.org -- []